Weblogic 8.1/Oracle 9 Writing and Reading Clob

I’m trying to write and read a clob to a database table. The database table has
an Id field (int) and a Content field (clob).
My environment consists of Weblogic 8.1, and Oracle 9. Is there a way to get a
handle to a Weblogic connection to Oracle and then write and read clobs?
Any help would be greatly appreciated!
Thanks,
Mike

Problem 1. US7ASCII and Linux - Status Resolved.
The issue with the BEA 817 JDBC driver not connecting to the US7ASCII database tuned out to be that it had not deployed the connection pool correctly from the weblogic admin console... or that it was reported as being deployed when in fact it was not. After re-deploying the connection pool and restarting the server we were able to connect.
The patch was for character sets was not needed.
Problem 2. Oracle Stored Proc error.
The problem with the stored procedures tunred out to be with ref cursors. A patch in sp3, and a change to the way we called the stored proc allowed us to fix the problem.
The problem is reproduced when connecting to an Oracle 8.1.7 server.
It was introduced in the Connect JDBC driver build 3.0.0007. According
to the jdbcread.me file which comes with the 3.0.0007 build we
deprecated the refCursorSupport connection property. This could be
related to the driver not being able to execute a stored procedure
containing ref cursors.
Resolution
Driver was fixed in the Connect JDBC 3.1 Oracle driver version 3.1.0008
The trick was to use
"{call PROC(?,?)}"
instead of
"BEGIN PROC(?, ?);
END;"
Here is a very useful link on the matter:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=b860627b.0405130528.4db317a0%40posting.google.com&rnum=1&prev=/groups%3Fq%3D%255BBEA%255D%255BOracle%2BJDBC%2BDriver%255DInvalid%2Bparameter%2Bbinding%26hl%3Den%26lr%3D%26ie%3DUTF-8%26selm%3Db860 27b.0405130528.4db317a0%2540posting.google.com%26rnum%3D1
The bea type 4 is an oem from DataDirect
http://knowledgebase2.datadirect.com/kbase.nsf/26536a530e20a22b85256e550079afc2/b3be8f8fcb7c30c285256c9f006f8645?OpenDocument&Highlight=0,oracle

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         public int CustOrderID;
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         public float GrandTotal;
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         public int getCustOrderID() {
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              return OrderDate;
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         public int QuantityRequired;
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              this.UnitPrice = UnitPrice;
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              UnitPriceLbl.setForeground(LblfontColor);
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                             internalprevbtn.setEnabled(false);
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                             --currentItem;
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                             setInnerFieldText(currentItem);
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              createbuttonpanel();
              buttonpanel.setBackground(TxtfontColor);
              externalprevbtn = new JButton(createPreviousButtonIcon());
              externalprevbtn.addActionListener(new ActionListener(){
                   public void  actionPerformed(ActionEvent evt){
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                        externalnextbtn.setEnabled(true);
                        if(CurrentRecord == 1){
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                             --CurrentRecord;
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                             System.out.println(CurrentRecord);//Checking RECORD_NUM
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              addrecordbtn = new JButton("Add Record", createAddButtonIcon());
              addrecordbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        try{
                             MaxRecord = readRecordNumber();
                             MaxRecord++;
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                             CustIDTxt.setText("");
                             CustOrderIDTxt.setText(""+MaxRecord);
                             //Get today's date
                             Date todaydate = new Date();
                             OrderedDateTxt.setText(""+simpleDF.format(todaydate));
                             ItemNumberTxt.setText("");
                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
                             GrandTotTxt.setText("");
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                             externalnextbtn.setEnabled(false);
                             externalprevbtn.setEnabled(true);
                             System.out.println(MaxRecord);
                        } catch(Exception ec){ec.printStackTrace();}
              buttonpanel.add(addrecordbtn);
              savebtn = new JButton("Save Data", createSaveButtonIcon());
              savebtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        setFieldText(CurrentRecord);
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                        writeRecordNumber(MaxRecord);
                        System.out.println(CurrentRecord);
                        System.out.println(MaxRecord);
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              java.net.URL imageURL_AddRowIcon = CommonFeatures.class.getResource("Icons/edit_add.png");
              ImageIcon AddRowIcon = new ImageIcon(imageURL_AddRowIcon);
              additemreqbtn = new JButton("Add Item", AddRowIcon);
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                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
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                        if(CurrentRecord == MaxRecord){
                             externalnextbtn.setEnabled(false);
              buttonpanel.add(externalnextbtn);
              return buttonpanel;
         //TODO
         public void setFieldText(int orderID){//TODO
              orderDetails[orderID].setCustID(Integer.parseInt(CustIDTxt.getText()));
              orderDetails[orderID].setCustOrderID(Integer.parseInt(CustOrderIDTxt.getText()));
              orderDetails[orderID].setOrderDate(OrderedDateTxt.getText());
              orderDetails[orderID].setInnerCustOrdObj(innerCustOrdObj);
              orderDetails[orderID].setMaxItems(MaxItems);
              setInnerFieldText(currentItem);
              orderDetails[orderID].setGrandTotal(Float.parseFloat(GrandTotTxt.getText()));
         public void setInnerFieldText(int currentItem){//TODO
              innerCustOrdObj[currentItem] = new InnerCustOrdObject();
              innerCustOrdObj[currentItem].setItemNumber(Integer.parseInt(ItemNumberTxt.getText()));
              innerCustOrdObj[currentItem].setUnitPrice(Float.parseFloat(UnitPriceTxt.getText()));
              innerCustOrdObj[currentItem].setQuantityRequired(Integer.parseInt(QuantityReqTxt.getText()));
              innerCustOrdObj[currentItem].setTotalPrice(Float.parseFloat(TotPriceTxt.getText()));
         public void getFieldText(int orderID){
              CustIDTxt.setText(Integer.toString(orderDetails[orderID].getCustID()));
              CustOrderIDTxt.setText(Integer.toString(orderDetails[orderID].getCustOrderID()));
              OrderedDateTxt.setText(""+orderDetails[orderID].getOrderDate());          
              currentItem = orderDetails[orderID].getMaxItems();
              System.err.println("currentItem" + currentItem);
              getInnerFieldText(currentItem);
              GrandTotTxt.setText(Float.toString(orderDetails[orderID].getGrandTotal()));
         public void getInnerFieldText(int currentItem){
              ItemNumberTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getItemNumber()));
              UnitPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getUnitPrice()));
              QuantityReqTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getQuantityRequired()));
              TotPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getTotalPrice()));
         public void writeOrder(){//TODO
              try {
                   objOut = new ObjectOutputStream(new FileOutputStream(OrderDetailsFile));
                   objOut.writeObject(orderDetails);
                   System.out.println("WORKING!");
                   objOut.flush();
                   objOut.close();
              } catch (IOException e) {
                   e.printStackTrace();
         public Object readOrder(){
              Object temporaryObj;
              try{
                   objIn = new ObjectInputStream(new FileInputStream(OrderDetailsFile));
                   temporaryObj = objIn.readObject();               
                   CustOrdObject[] blah = (CustOrdObject[]) temporaryObj;
                   System.out.println("Outer: "+blah[1].getCustID());
                   InnerCustOrdObject[] whee = blah[1].getInnerCustOrdObj();
                   System.out.println("Inner: "+whee[1].getItemNumber());
                   objIn.close();
                   System.out.println("Read Worky!");
                   return temporaryObj;
              }catch(Exception e){
                   e.printStackTrace();
                   System.out.println("Read No Worky!");
                   return null;
         public void writeRecordNumber(int MaxRecord){
              try{
                   objOut = new ObjectOutputStream(new FileOutputStream(OrdRecordNumStore));
                   objOut.writeObject(MaxRecord);
                   System.out.println("WORKING!");
                   objOut.flush();
                   objOut.close();
              }catch(Exception e){e.printStackTrace();}
         public int readRecordNumber() {
              try {
                   objIn = new ObjectInputStream(new FileInputStream(OrdRecordNumStore));
                   int temporaryObj = Integer.parseInt(objIn.readObject().toString());
                   objIn.close();
                   System.out.println("Read Number Worky!");
                   return temporaryObj;
              } catch (Exception e) {
                   e.printStackTrace();
                   System.out.println("Read Number No Worky!");
                   return -1;
    }Message was edited by:
    Kilik07
    Message was edited by:
    Kilik07

    ok i got reading to work to a certain extent... but the prob is i cnt seem to save my innerCustOrdObj proprly...when ever i look for a record using the gotorecordbtn, the outerobject, which is the orderDetails, seems to change but the innerCustOrdObj remains the same... heres the new code..
    public class CustomerOrderDetails extends CommonFeatures{
         //TODO
         private static int MAX_ORDERS = 200;
         private static int MAX_ORDERITEMS = 100;
         private static int MaxRecord;
         private static int CurrentRecord = 1;
         private static int currentItem;
         private static int MaxItems = 1;
         private static boolean FileExists, recFileExists;
         private static boolean RecordExists;
         private static CustOrdObject[] orderDetails = new CustOrdObject[MAX_ORDERS];
         private static InnerCustOrdObject[] innerCustOrdObj = new InnerCustOrdObject[MAX_ORDERITEMS];     
         private static File OrderDetailsFile = new File("CustOrdDetails.ser");
         private static File OrdRecordNumStore = new File("OrdRecordNumStore.txt");
         private static PrintWriter writeFile;
         private static BufferedReader readFile;
         private static ObjectOutputStream objOut;
         private static ObjectInputStream objIn;
         //Set format for date
         SimpleDateFormat simpleDF = new SimpleDateFormat("dd MM yyyy");
         //--<BEGINNING>--Declaring Interface Variables------------------------------------------//
         private JPanel innertoppanel, innercenterpanel, innerbottompanel, innerrightpanel, innerleftpanel;
         private JLabel CustIDLbl, CustOrderIDLbl, OrderedDateLbl, GrandTotLbl, ItemNumberLbl,UnitPriceLbl, QuantityReqLbl, TotPriceLbl;
         private JTextField CustIDTxt, CustOrderIDTxt, OrderedDateTxt, GrandTotTxt, ItemNumberTxt, UnitPriceTxt, QuantityReqTxt, TotPriceTxt;
         private JButton addrecordbtn, savebtn, externalprevbtn, externalnextbtn, internalprevbtn, internalnextbtn, gotorecordbtn, additemreqbtn;
         //--<END>--Declaring Interface Variables------------------------------------------------//
         public static void main(String[] args) {
              final CustomerOrderDetails COD = new CustomerOrderDetails();
              java.awt.EventQueue.invokeLater(new Runnable() {
                   public void run() {
                        try {
                             UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
                             COD.createCustOrdDetailsScreen();
                        } catch (Exception eb) {
                             eb.printStackTrace();
         //--<BEGINNING>--Creating CustomerOrderDetails Screen---------------------------------------//
         public JFrame createCustOrdDetailsScreen() {
              createDefaultFrame();
              mainframe.setSize(800,500);
              createContainerPanel();
              containerpanel.add(createCustOrdDetailsTitle(), BorderLayout.NORTH);
              containerpanel.add(createCustOrdDetailsMainPanel(), BorderLayout.CENTER);
              //containerpanel.add(createCustOrdDetailsLeftNavButtons(), BorderLayout.WEST);
              //containerpanel.add(createCustOrdDetailsRightNavButtons(), BorderLayout.EAST);
              containerpanel.add(createCustOrdDetailsButtons(), BorderLayout.SOUTH);
              mainframe.setContentPane(containerpanel);
              mainframe.setLocationRelativeTo(null);
              mainframe.setVisible(true);
              //--<BEGINNING>--Checks to see whether CRecordNumberStore file exists-------------------------------//
              if (OrdRecordNumStore.exists() == true) {
                   recFileExists = true;
              }else {
                   recFileExists = false;
              if (recFileExists == true) {
                   MaxRecord = readRecordNumber();
                   CurrentRecord = MaxRecord;
                   //readOrder();
                   //readInnerOrderRecord(CurrentRecord);
                   System.out.println("Current Record " +CurrentRecord);
                   System.out.println("Max Record " +MaxRecord);
              }else{
                   MaxRecord = 1;
                   writeRecordNumber(MaxRecord);
                   CustOrderIDTxt.setText(""+MaxRecord);
                   System.out.println("Current Record " +CurrentRecord);
                   System.out.println("Max Record " +MaxRecord);
              //--<END>--Checks to see whether CRecordNumberStore file exists--------------------------------------//
              if(readOrder() != null){
                   orderDetails = (CustOrdObject[]) readOrder();
                   //CurrentRecord--;
                   //System.out.println("Current Rec Here"+CurrentRecord);
                   if(orderDetails[CurrentRecord] == null){
                        System.err.println("CustomerOrderObj 1 is null !!");
                   }else{
                        System.err.println("CustomerOrderObj 1 is  not null !!");
                   if(orderDetails[CurrentRecord].getInnerCustOrdObj() == null){
                        System.err.println("InnerCustomerOrderObj is null !!");
                   }else{
                        System.err.println("InnerCustomerOrderObj is  not null !!");
                   innerCustOrdObj = orderDetails[CurrentRecord].getInnerCustOrdObj();
                   MaxItems = orderDetails[CurrentRecord].getMaxItems();
                   if(CurrentRecord > 1 && CurrentRecord < MaxRecord){
                        externalnextbtn.setEnabled(true);
                        externalprevbtn.setEnabled(true);
                   if(CurrentRecord >= MaxRecord){
                        externalnextbtn.setEnabled(false);
                   getFieldText(CurrentRecord);
                   getInnerFieldText(MaxItems);
              }else{
                   orderDetails[CurrentRecord] = new CustOrdObject();
                   currentItem = 1;
              return mainframe;
         //--<END>--Creating CustomerOrderDetails Screen---------------------------------------------//
         public JPanel createCustOrdDetailsTitle(){
              createTitlePanel();
              titlepanel.setBackground(TxtfontColor);
              label.setText("- Customer Order Details -");
              labelpanel.setBackground(TxtfontColor);
              label.setForeground(Color.white);
              createbuttonpanel();
              buttonpanel.setBackground(TxtfontColor) ;
              buttonpanel.add(createReturnToMainMenuButton());
              titlepanel.add(labelpanel, BorderLayout.WEST);
              titlepanel.add(buttonpanel, BorderLayout.EAST);
              return titlepanel;
         public JPanel createCustOrdDetailsMainPanel(){
              createmainpanel();
              mainpanel.setBackground(TxtfontColor);
              mainpanel.setLayout(new BorderLayout());          
              mainpanel.setBorder(BorderFactory.createTitledBorder(""));
              mainpanel.add(createInnerTopPanel(), BorderLayout.NORTH);
              mainpanel.add(createInnerCenterPanel(), BorderLayout.CENTER);
              mainpanel.add(createInnerBottomPanel(), BorderLayout.SOUTH);
              mainpanel.add(createInnerRightPanel(), BorderLayout.EAST);
              mainpanel.add(createInnerLeftPanel(), BorderLayout.WEST);
              return mainpanel;
         public JPanel createInnerTopPanel(){
              innertoppanel = new JPanel(new GridBagLayout());
              innertoppanel.setBackground(TxtfontColor);
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              CustIDLbl = new JLabel("Customer ID");
              CustIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              CustIDLbl.setFont(font);
              CustIDLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 1;
              innertoppanel.add(CustIDLbl, GBC);     
              CustIDTxt = new JTextField(20);
              CustIDTxt.setEditable(true);
              GBC.gridx = 2;
              GBC.gridy = 1;
              innertoppanel.add(CustIDTxt, GBC);
              GBC.gridx = 3;
              GBC.gridy = 1;
              innertoppanel.add(Box.createHorizontalStrut(220), GBC);
              OrderedDateLbl = new JLabel("Order Date");
              OrderedDateLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              OrderedDateLbl.setFont(font);
              OrderedDateLbl.setForeground(LblfontColor);
              GBC.gridx = 4;
              GBC.gridy = 1;
              innertoppanel.add(OrderedDateLbl, GBC);     
              //Get today's date
              Date todaydate = new Date();
              OrderedDateTxt = new JTextField(simpleDF.format(todaydate), 20);
              OrderedDateTxt.setHorizontalAlignment(JTextField.CENTER);
              OrderedDateTxt.setEditable(false);
              GBC.gridx = 5;
              GBC.gridy = 1;
              innertoppanel.add(OrderedDateTxt, GBC);
              CustOrderIDLbl = new JLabel("Customer Order ID");
              CustOrderIDLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              CustOrderIDLbl.setFont(font);
              CustOrderIDLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 2;
              innertoppanel.add(CustOrderIDLbl, GBC);
              CustOrderIDTxt = new JTextField(20);
              //CustOrderIDTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 2;
              innertoppanel.add(CustOrderIDTxt, GBC);
              return innertoppanel;
         public JPanel createInnerCenterPanel(){
              innercenterpanel = new JPanel(new GridBagLayout());
              innercenterpanel.setBackground(TxtfontColor);
              innercenterpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              ItemNumberLbl = new JLabel("Item Number");
              ItemNumberLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              ItemNumberLbl.setFont(font);
              ItemNumberLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 1;
              innercenterpanel.add(ItemNumberLbl, GBC);     
              ItemNumberTxt = new JTextField(20);
              GBC.gridx = 2;
              GBC.gridy = 1;
              innercenterpanel.add(ItemNumberTxt, GBC);
              UnitPriceLbl = new JLabel("Unit Price");
              UnitPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              UnitPriceLbl.setFont(font);
              UnitPriceLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 2;
              innercenterpanel.add(UnitPriceLbl, GBC);     
              UnitPriceTxt = new JTextField(20);
              //UnitPriceTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 2;
              innercenterpanel.add(UnitPriceTxt, GBC);
              QuantityReqLbl = new JLabel("Quantity Required");
              QuantityReqLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              QuantityReqLbl.setFont(font);
              QuantityReqLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 3;
              innercenterpanel.add(QuantityReqLbl, GBC);     
              QuantityReqTxt = new JTextField(20);
              //QuantityReqTxt.setEditable(false);
              GBC.gridx = 2;
              GBC.gridy = 3;
              innercenterpanel.add(QuantityReqTxt, GBC);
              TotPriceLbl = new JLabel("Total Price");
              TotPriceLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              TotPriceLbl.setFont(font);
              TotPriceLbl.setForeground(LblfontColor);
              GBC.gridx = 1;
              GBC.gridy = 4;
              innercenterpanel.add(TotPriceLbl, GBC);     
              TotPriceTxt = new JTextField(20);
              TotPriceTxt.setEditable(false);
              TotPriceTxt.addFocusListener(new FocusAdapter(){
                   public void focusGained(FocusEvent evt){
                        TotPriceTxt.setText(""+Integer.parseInt(UnitPriceTxt.getText())*Integer.parseInt(QuantityReqTxt.getText()));
              GBC.gridx = 2;
              GBC.gridy = 4;
              innercenterpanel.add(TotPriceTxt, GBC);
              return innercenterpanel;
         public JPanel createInnerBottomPanel(){
              innerbottompanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
              innerbottompanel.setBackground(TxtfontColor);
              //Setting Font Type and Size
              Font font = new Font("Arial", Font.BOLD, 11);
              GrandTotLbl = new JLabel("Grand Total");
              GrandTotLbl.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
              GrandTotLbl.setFont(font);
              GrandTotLbl.setForeground(LblfontColor);
              innerbottompanel.add(GrandTotLbl);
              innerbottompanel.add(Box.createHorizontalStrut(30));
              GrandTotTxt = new JTextField(20);
              innerbottompanel.add(GrandTotTxt);
              return innerbottompanel;
         public JPanel createInnerRightPanel(){
              innerrightpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
              innerrightpanel.setBackground(TxtfontColor);
              innerrightpanel.setLayout(new BoxLayout(navrightpanel, BoxLayout.Y_AXIS));
              innerrightpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              innerrightpanel.setLayout(new GridBagLayout());          
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              internalnextbtn = new JButton(createNextButtonIcon());
              GBC.gridx = 1;
              GBC.gridy = 1;
              internalnextbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        getInnerFieldText(currentItem);
                        internalprevbtn.setEnabled(true);
                        if(currentItem < MaxItems){
                             ++currentItem;
                             orderDetails[CurrentRecord].getInnerCustOrdObj();
                             setInnerFieldText(currentItem);
                             System.out.println("Current Item" + currentItem);
                        if(currentItem == MaxItems){
                             internalnextbtn.setEnabled(false);
              innerrightpanel.add(internalnextbtn, GBC);
              return innerrightpanel;
         public JPanel createInnerLeftPanel(){
              innerleftpanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
              innerleftpanel.setBackground(TxtfontColor);
              innerleftpanel.setBorder(BorderFactory.createLoweredBevelBorder());
              innerleftpanel.setForeground(Color.BLACK);
              innerleftpanel.setLayout(new GridBagLayout());          
              GridBagConstraints GBC = new GridBagConstraints();
              GBC.fill = GridBagConstraints.HORIZONTAL;
              internalprevbtn = new JButton(createPreviousButtonIcon());
              GBC.gridx = 1;
              GBC.gridy = 1;
              internalprevbtn.addActionListener(new ActionListener(){
                   public void  actionPerformed(ActionEvent evt){
                        getInnerFieldText(currentItem);
                        internalnextbtn.setEnabled(true);
                        if(currentItem == 1){
                             internalprevbtn.setEnabled(false);
                        if(currentItem > 0){
                             --currentItem;
                             orderDetails[CurrentRecord].getInnerCustOrdObj();
                             setInnerFieldText(currentItem);
                             System.out.println("Current Item" + currentItem);
              innerleftpanel.add(internalprevbtn, GBC);
              return innerleftpanel;
         public JPanel createCustOrdDetailsButtons(){
              createbuttonpanel();
              buttonpanel.setBackground(TxtfontColor);
              externalprevbtn = new JButton(createPreviousButtonIcon());
              externalprevbtn.addActionListener(new ActionListener(){
                   public void  actionPerformed(ActionEvent evt){
                        getFieldText(CurrentRecord);
                        externalnextbtn.setEnabled(true);
                        if(CurrentRecord == 1){
                             externalprevbtn.setEnabled(false);
                        if(CurrentRecord > 0){
                             --CurrentRecord;
                             setFieldText(CurrentRecord);
                             System.out.println("Current Record " + CurrentRecord);//Checking RECORD_NUM
              buttonpanel.add(externalprevbtn);
              addrecordbtn = new JButton("Add Record", createAddButtonIcon());
              addrecordbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        try{
                             MaxRecord = readRecordNumber();
                             MaxRecord++;
                             CurrentRecord = MaxRecord;
                             orderDetails[CurrentRecord] = new CustOrdObject();
                             writeRecordNumber(MaxRecord);
                             MaxItems = 1;
                             innerCustOrdObj[MaxItems] = new InnerCustOrdObject();
                             //--<BEGINNING>--Clear Fields-------------------------------------------------------//
                             CustIDTxt.setText("");
                             CustOrderIDTxt.setText(""+MaxRecord);
                             //Get today's date
                             Date todaydate = new Date();
                             OrderedDateTxt.setText(""+simpleDF.format(todaydate));
                             ItemNumberTxt.setText("");
                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
                             GrandTotTxt.setText("");
                             //--<END>--Clear Fields-------------------------------------------------------------//
                             externalnextbtn.setEnabled(false);
                             externalprevbtn.setEnabled(true);
                             System.out.println(MaxRecord);
                        } catch(Exception ec){ec.printStackTrace();}
              buttonpanel.add(addrecordbtn);
              savebtn = new JButton("Save Data", createSaveButtonIcon());
              savebtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        setFieldText(CurrentRecord);
                        setInnerFieldText(MaxItems);
                        writeOrder();
                        writeRecordNumber(MaxRecord);
                        System.out.println(CurrentRecord);
                        System.out.println(MaxRecord);
              buttonpanel.add(savebtn);
              java.net.URL imageURL_AddRowIcon = CommonFeatures.class.getResource("Icons/edit_add.png");
              ImageIcon AddRowIcon = new ImageIcon(imageURL_AddRowIcon);
              additemreqbtn = new JButton("Add Item", AddRowIcon);
              additemreqbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        try{
                             //--<BEGINNING>--Clear Fields-------------------------------------------------------//
                             ItemNumberTxt.setText("");
                             UnitPriceTxt.setText("");
                             QuantityReqTxt.setText("");
                             TotPriceTxt.setText("");
                             //--<END>--Clear Fields-------------------------------------------------------------//
                             //CurrentRecord = MaxRecord;
                             MaxItems++;
                             innerCustOrdObj[MaxItems] = new InnerCustOrdObject();
                             System.out.println("Max Items "+MaxItems);
                             currentItem = MaxItems;
                             orderDetails[CurrentRecord].setMaxItems(MaxItems);
                             ///setInnerFieldText(currentItem);
                             internalnextbtn.setEnabled(false);
                             internalprevbtn.setEnabled(true);
                        } catch(Exception ec){ec.printStackTrace();}
              buttonpanel.add(additemreqbtn);
              externalnextbtn = new JButton(createNextButtonIcon());
              externalnextbtn.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent evt){
                        getFieldText(CurrentRecord);
                        externalprevbtn.setEnabled(true);
                        if(CurrentRecord < MaxRecord){
                             ++CurrentRecord;
                             setFieldText(CurrentRecord);
                             System.out.println(CurrentRecord);//Checking RECORD_NUM
                        if(CurrentRecord == MaxRecord){
                             externalnextbtn.setEnabled(false);
              buttonpanel.add(externalnextbtn);
              gotorecordbtn = new JButton("Go To Record", createGotoButtonIcon());
              gotorecordbtn.addActionListener(new ActionListener() {
                   public void actionPerformed(ActionEvent evt){
                         * The text from the GotorecordTxt textfield will be taken and assigned
                         * to a temporary integer variable called Find. 
                        int Find = Integer.parseInt(CustOrderIDTxt.getText());
                        for(int j=1; j <= MaxRecord; j++){
                              * Using a for loop, each record can be read using the readCustRecord
                              * method.
                             getFieldText(j);
                              * An if condition is utilized to check whether the temporary stored variable, Find,
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                              * which was declared at the top, either a true or false statement can be assigned
                              * If the record exists, then a true statement will be assigned, if not a false
                              * statement will be assigned.
                             if(orderDetails[j].getCustOrderID() == Find){
                                  RecordExists = true;
                                  break;
                             }else{
                                  RecordExists = false;
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                              * If the RecordExists is assigned a false statement, then a message will be
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                             JOptionPane.showMessageDialog(null, "Record Does Not Exist!", "Error Message", JOptionPane.ERROR_MESSAGE, createErrorIcon());
                        }else{
                             getFieldText(Find);
              buttonpanel.add(gotorecordbtn);
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         public void setFieldText(int orderID){//TODO
              orderDetails[orderID].setCustID(Integer.parseInt(CustIDTxt.getText()));
              orderDetails[orderID].setCustOrderID(Integer.parseInt(CustOrderIDTxt.getText()));
              orderDetails[orderID].setOrderDate(OrderedDateTxt.getText());
              orderDetails[orderID].setInnerCustOrdObj(innerCustOrdObj);
              orderDetails[orderID].setMaxItems(MaxItems);
              setInnerFieldText(currentItem);
              orderDetails[orderID].setGrandTotal(Float.parseFloat(GrandTotTxt.getText()));
         public void setInnerFieldText(int currentItem){//TODO
              innerCustOrdObj[currentItem] = new InnerCustOrdObject();
              innerCustOrdObj[currentItem].setMaxItems(MaxItems);
              innerCustOrdObj[currentItem].setItemNumber(Integer.parseInt(ItemNumberTxt.getText()));
              innerCustOrdObj[currentItem].setUnitPrice(Float.parseFloat(UnitPriceTxt.getText()));
              innerCustOrdObj[currentItem].setQuantityRequired(Integer.parseInt(QuantityReqTxt.getText()));
              innerCustOrdObj[currentItem].setTotalPrice(Float.parseFloat(TotPriceTxt.getText()));
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              CustIDTxt.setText(Integer.toString(orderDetails[orderID].getCustID()));
              CustOrderIDTxt.setText(Integer.toString(orderDetails[orderID].getCustOrderID()));
              OrderedDateTxt.setText(""+orderDetails[orderID].getOrderDate());          
              currentItem = orderDetails[orderID].getMaxItems();
              orderDetails[orderID].getInnerCustOrdObj();
              System.err.println("currentItem" + currentItem);
              //getInnerFieldText(currentItem);
              GrandTotTxt.setText(Float.toString(orderDetails[orderID].getGrandTotal()));
         public void getInnerFieldText(int currentItem){
              ItemNumberTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getItemNumber()));
              UnitPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getUnitPrice()));
              QuantityReqTxt.setText(Integer.toString(innerCustOrdObj[currentItem].getQuantityRequired()));
              TotPriceTxt.setText(Float.toString(innerCustOrdObj[currentItem].getTotalPrice()));
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              try {
                   objOut = new ObjectOutputStream(new FileOutputStream(OrderDetailsFile));
                   objOut.writeObject(orderDetails);
                   System.out.println("WORKING!");
                   objOut.flush();
                   objOut.close();
              } catch (IOException e) {
                   e.printStackTrace();
         public Object readOrder(){
              Object temporaryObj;
              try{
                   objIn = new ObjectInputStream(new FileInputStream(OrderDetailsFile));
                   temporaryObj = objIn.readObject();               
                   CustOrdObject[] blah = (CustOrdObject[]) temporaryObj;
                   /*               System.out.println("Outer: "+blah[1].getCustID());
                   InnerCustOrdObject[] whee = blah[1].getInnerCustOrdObj();
                   System.out.println("Inner: "+whee[1].getItemNumber());*/
                   objIn.close();
                   System.out.println("Read Worky!");
                   return temporaryObj;
              }catch(Exception e){
                   e.printStackTrace();
                   System.out.println("Read No Worky!");
                   return null;
         public void writeRecordNumber(int MaxRecord){
              try{
                   objOut = new ObjectOutputStream(new FileOutputStream(OrdRecordNumStore));
                   objOut.writeObject(MaxRecord);
                   System.out.println("WORKING!");
                   objOut.flush();
                   objOut.close();
              }catch(Exception e){e.printStackTrace();}
         public int readRecordNumber() {
              try {
                   objIn = new ObjectInputStream(new FileInputStream(OrdRecordNumStore));
                   int temporaryObj = Integer.parseInt(objIn.readObject().toString());
                   objIn.close();
                   System.out.println("Read Number Worky!");
                   return temporaryObj;
              } catch (Exception e) {
                   e.printStackTrace();
                   System.out.println("Read Number No Worky!");
                   return -1;
    }Message was edited by:
    Kilik07

  • Bug Found: jDriver/Oracle and reading CLOBs 4KB

     

    look under
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    Filip
    ~
    Namaste - I bow to the divine in you
    ~
    Filip Hanik
    Software Architect
    [email protected]
    www.filip.net
    "Cully Orstad" <[email protected]> wrote in message
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    >
    Andy,
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    "Raj Alagumalai" <[email protected]> wrote in message
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    Andy,
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    Now you can ask us questions on the web!! The new 'AskBEA' serviceis
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    on http://www.bea.com/support/index.html. This service lets you ask
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    After more investigation and help from Daniel Hoppe (THANKS!), the
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    has been narrowed down to the jDriver/Oracle driver. Using the Oracle
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    import java.awt.Container;
    import java.awt.Dimension;
    import java.awt.GridBagConstraints;
    import java.awt.GridBagLayout;
    import java.awt.Insets;
    import java.awt.Toolkit;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.text.DecimalFormat;
    import javax.swing.JOptionPane;
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JTextField;
    import java.io.*;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.lang.IllegalStateException;
    import java.util.NoSuchElementException;
    import java.util.ArrayList;
    import java.text.NumberFormat;
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    public class Inventory6 extends javax.swing.JFrame {
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    IDNumberLbl = new javax.swing.JLabel();
    IDNumberField = new javax.swing.JTextField();
    prodNameLbl = new javax.swing.JLabel();
    prodNameField = new javax.swing.JTextField();
    colorLbl = new javax.swing.JLabel();
    colorField = new javax.swing.JTextField();
    unitsInStockLbl = new javax.swing.JLabel();
    unitsInStockField = new javax.swing.JTextField();
    unitPriceLbl = new javax.swing.JLabel();
    unitPriceField = new javax.swing.JTextField();
    invenValueLbl = new javax.swing.JLabel();
    invenValueField = new javax.swing.JTextField();
    restockingFeeLbl = new javax.swing.JLabel();
    restockingFeeField = new javax.swing.JTextField();
    jbtFirst = new javax.swing.JButton();
    jbtNext = new javax.swing.JButton();
    jbtPrevious = new javax.swing.JButton();
    jbtLast = new javax.swing.JButton();
    jbtAdd = new javax.swing.JButton();
    jbtDelete = new javax.swing.JButton();
    jbtModify = new javax.swing.JButton();
    jbtSave = new javax.swing.JButton();
    jPanel2 = new javax.swing.JPanel();
    searchIDNumLbl = new javax.swing.JLabel();
    searchIDNumbField = new javax.swing.JTextField();
    jbtSearch = new javax.swing.JButton();
    searchResults = new javax.swing.JLabel();
    jbtExit = new javax.swing.JButton();
    jbtExitwoSave = new javax.swing.JButton();
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    .addGroup(layout.createSequentialGroup()
    .addComponent(jbtFirst)
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addComponent(jbtNext)
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addComponent(jbtPrevious)
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addComponent(jbtLast))
    .addGroup(layout.createSequentialGroup()
    .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
    .addGap(12, 12, 12)
    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
    .addComponent(jbtAdd)
    .addComponent(jbtDelete)
    .addComponent(jbtModify)
    .addComponent(jbtSave))))
    .addContainerGap())
    layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jbtFirst, jbtLast, jbtNext, jbtPrevious});
    layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jbtAdd, jbtDelete, jbtModify, jbtSave});
    layout.setVerticalGroup(
    layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
    .addGroup(layout.createSequentialGroup()
    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
    .addGroup(layout.createSequentialGroup()
    .addGap(21, 21, 21)
    .addComponent(jbtAdd)
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addComponent(jbtDelete)
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addComponent(jbtModify)
    .addGap(39, 39, 39)
    .addComponent(jbtSave))
    .addGroup(layout.createSequentialGroup()
    .addContainerGap()
    .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
    .addComponent(jbtFirst)
    .addComponent(jbtNext)
    .addComponent(jbtPrevious)
    .addComponent(jbtLast))
    .addGap(15, 15, 15)
    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
    .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE)
    .addGroup(layout.createSequentialGroup()
    .addComponent(jbtExit)
    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
    .addComponent(jbtExitwoSave)))
    .addContainerGap())
    pack();
    }// </editor-fold>
    private void jbtExitwoSaveActionPerformed(java.awt.event.ActionEvent evt) {                                             
    System.exit(0);
    private void jbtSaveActionPerformed(java.awt.event.ActionEvent evt) {                                       
    String prodNameMod, colorMod;
    double unitsInStockMod, unitPriceMod;
    int idNumMod;
    idNumMod = Integer.parseInt(IDNumberField.getText());
    prodNameMod = prodNameField.getText();
    unitsInStockMod = Double.parseDouble(unitsInStockField.getText());
    unitPriceMod = Double.parseDouble(unitPriceField.getText());
    colorMod = colorField.getText();
    if(currentProductIndex == inventory.length) {
    inList.add(new InventoryPlusColor(idNumMod, prodNameMod,
    unitsInStockMod, unitPriceMod, colorMod));
    InventoryPlusColor[] inventory = (InventoryPlusColor[]) inList.toArray
    (new InventoryPlusColor[inList.size()]);
    } else {
    inventory[currentProductIndex].setIDNumber(idNumMod);
    inventory[currentProductIndex].setProdName(prodNameMod);
    inventory[currentProductIndex].setUnitsInStock(unitsInStockMod);
    inventory[currentProductIndex].setUnitPrice(unitPriceMod);
    inventory[currentProductIndex].setColor(colorMod);
    displayProduct(inventory[currentProductIndex]);
    private static void writeInventory(InventoryPlusColor i,
    DataOutputStream out) {
    try {
    out.writeInt(i.getIDNumber());
    out.writeUTF(i.getProdName());
    out.writeDouble(i.getUnitsInStock());
    out.writeDouble(i.getUnitPrice());
    out.writeUTF(i.getColor());
    } catch (IOException e) {
    JOptionPane.showMessageDialog(null, "I/O Exception writing data",
    "", JOptionPane.ERROR_MESSAGE);
    System.exit(0);
    } //end writeInventory()
    private static DataOutputStream openOutputStream(String name) {
    DataOutputStream out = null;
    try {
    File file = new File(name);
    out =
    new DataOutputStream(
    new BufferedOutputStream(
    new FileOutputStream(file)));
    } catch (IOException e) {
    JOptionPane.showMessageDialog(null, "I/O Error", "", JOptionPane.ERROR_MESSAGE);
    System.exit(0);
    return out;
    } // end openOutputStream()
    private static void closeFile(DataOutputStream out) {
    try {
    out.close();
    } catch (IOException e) {
    JOptionPane.showMessageDialog(null, "I/O Exception closing file",
    "", JOptionPane.ERROR_MESSAGE);
    System.exit(0);
    } // end closeFile()
    private static DataInputStream getStream(String name) {
    DataInputStream in = null;
    try {
    File file = new File(name);
    in = new DataInputStream(
    new BufferedInputStream(
    new FileInputStream(file)));
    } catch (FileNotFoundException e) {
    JOptionPane.showMessageDialog(null, "The file doesn't exist",
    "", JOptionPane.ERROR_MESSAGE);
    System.exit(0);
    } catch (IOException e) {
    JOptionPane.showMessageDialog(null, "I/O Error creating file",
    "", JOptionPane.ERROR_MESSAGE);
    System.exit(0);
    return in;
    private static void closeInputFile(DataInputStream in) {
    try {
    in.close();
    } catch (IOException e) {
    JOptionPane.showMessageDialog(null, "I/O Exception closing file",
    "", JOptionPane.ERROR_MESSAGE);
    System.exit(0);
    } // end closeInputFile()
    private double entireInventory() {
    // a temporary double variable that the method will return ...
    // after each product's inventory is added to it
    double entireInventory = 0;
    // loop to control number of products
    for (int index = 0; index < inventory.length; index++) {
    // add each inventory to the entire inventory
    entireInventory += inventory[index].setInventoryValue();
    } // end loop to control number of products
    return entireInventory;
    } // end method entireInventory
    private void jbtLastActionPerformed(java.awt.event.ActionEvent evt) {                                       
    currentProductIndex = inventory.length-1; // move to the last product
    // display the information for the last product
    displayProduct(inventory[currentProductIndex]);
    private void jbtPreviousActionPerformed(java.awt.event.ActionEvent evt) {                                           
    if (currentProductIndex != 0) // it's not the first product displayed
    currentProductIndex -- ; // move to the previous product (decrement the current index)
    } else // the first product is displayed
    currentProductIndex = inventory.length-1; // move to the last product
    // after the current product index is set, display the information for that product
    displayProduct(inventory[currentProductIndex]);
    private void jbtNextActionPerformed(java.awt.event.ActionEvent evt) {                                       
    if (currentProductIndex != inventory.length-1) // it's not the last product displayed
    currentProductIndex ++ ; // move to the next product (increment the current index)
    } else // the last product is displayed
    currentProductIndex = 0; // move to the first product
    // after the current product index is set, display the information for that product
    displayProduct(inventory[currentProductIndex]);
    private void jbtFirstActionPerformed(java.awt.event.ActionEvent evt) {                                        
    currentProductIndex = 0;
    // display the information for the first product
    displayProduct(inventory[currentProductIndex]);
    private void colorFieldActionPerformed(java.awt.event.ActionEvent evt) {                                          
    // TODO add your handling code here:
    private void jbtModifyActionPerformed(java.awt.event.ActionEvent evt) {                                         
    prodNameField.setEditable(true);
    prodNameField.setFocusable(true);
    unitsInStockField.setEditable(true);
    unitPriceField.setEditable(true);
    private void jbtAddActionPerformed(java.awt.event.ActionEvent evt) {                                      
    IDNumberField.setText("");
    IDNumberField.setEditable(true);
    prodNameField.setText("");
    prodNameField.setEditable(true);
    colorField.setText("");
    colorField.setEditable(true);
    unitsInStockField.setText("");
    unitsInStockField.setEditable(true);
    unitPriceField.setText("");
    unitPriceField.setEditable(true);
    restockingFeeField.setText("");
    invenValueField.setText("");
    currentProductIndex = inventory.length;
    private void jbtExitActionPerformed(java.awt.event.ActionEvent evt) {                                       
    DataOutputStream out = openOutputStream("inventory.dat");
    for (InventoryPlusColor i : inventory)
    writeInventory(i, out);
    closeFile(out);
    System.exit(0);
    private static InventoryPlusColor readProduct(DataInputStream in) {
    int idNum = 0;
    String prodName = "";
    double inStock = 0.0;
    double pric

    BalusC -- The line that gives me my NullPointerException is when I call the "DisplayProduct()" method. Its a dumb question, but with NetBeans how do I find out which reference could be null? I'm not very familiar with how NetBeans works with finding out how to debug. Any help you can give me would be greatly appreciated.The IDE is com-plete-ly irrelevant. It's all about the source code.
    Do you understand anyway when and why a NullPointerException is been thrown? It is a subclass of RuntimeException and those kind of exceptions are very trival and generally indicate an design/logic/thinking fault in your code.
    SomeObject someObject = null; // The someObject reference is null.
    someObject.doSomething(); // Invoking a reference which is null would throw NPE.

  • Writing and  Reading serialized Objects

    [code=java]
    /*hey guys i'm new to java and i have been given an exercise to make a cd collection, write it into a file and read the data back to the program.
    the program is suppose to show you a menu to select from where you can add, delete, view sort, CD's when you add a CD it must be written to a file as an Object and when you want to view CDs or search for a CD the program must read the CD objects from the file they have been written to and must return a cd nam, artist and release date. the code looks like it is writing the Cd to a file but when i try to read (view or search for a cd from the file it gives an error null). so i think i'm note reading the right way.
    thank you for helping .
    import java.io.Serializable;
    public class cd implements Serializable {
         //creating attributes
              private String cdname = null;
              private double price = 0.0;
              private String artist =null;
              private int ratings =0;
              private String genre=null;
              private String releaseDate =null;
         // creating an Empty constructor
              public cd(){
              public cd (String cdname,double price, int ratings, String genre, String artist, String releaseDate){
              this.cdname=cdname;
              this.price=price;
              this.artist=artist;
              this.ratings=ratings;
              this.genre=genre;
              this.releaseDate=releaseDate;
              public String getGenre(){
                   return genre;
              public void setGenre(String genre){
                   this.genre =genre;
              public String getArtist(){
                   return artist;
              public void setArtist(String artist){
                   this.artist=artist;
              public String getName(){
              return cdname;
              public void setName(String cdname){
              this.cdname = cdname;
              public Double getPrice(){
              return price;
              public void setPrice(double price){
              this.price = price;
              public String getReleaseDate(){
              return releaseDate;
              public void setReleaseDate(String releaseDate){
              this.releaseDate = releaseDate;
              public int getRatings(){
              return ratings;
              public void setRatings( int ratings){
              this.ratings = ratings;
    import java.util.*;
    public class hipHopCollection {
    ArrayList<cd> list = new ArrayList <cd> ();
    EasyIn ei = new EasyIn();
         private cd invoke;
         private int b;
         public void load()
              System.out.println(" You Entered " + b + " To Add A CD ");
              invoke = new cd();
              System.out.println("Please Enter A CD Name ");     
              invoke.setName(ei.readString());
              System.out.println("Please Enter A CD Price");
              invoke.setPrice(ei.readDouble());
              System.out.println("Please Give Ratings For The CD");
              invoke.setRatings(ei.readInt());
              System.out.println("Please Enter A CD release date ");
              invoke.setReleaseDate(ei.readString());
              System.out.println("Please Enter artist Name ");
              invoke.setArtist(ei.readString());
              System.out.println("Please Enter A CD Genre ");
              invoke.setGenre(ei.readString());
              list.add(invoke); // trying to add cd information to invoke.
         }// end of load
    // The following method should return the Object variable invoke that holds the cd INFO
         public Object getInvoke()
         return invoke;
         public int getB()
         return b;
         public void setB()
         b=ei.readInt();
         public void menu(){
              System.out.println("......................................................... ");
              System.out.println("Hi There Please Enter A Number For Your Choice");
              System.out.println(" Pess >>");
              System.out.println("1 >> Add A CD");
              System.out.println("2 >> View List Of CD's");
              System.out.println("3 >> Sort CD's By Price");
              System.out.println("4 >> Search CD By Name");
              System.out.println("5 >> Remove CD(s) By Name");
              System.out.println("0 >> Exit");
              System.out.println(".........................................................");
              System.out.print("Please Enter Chioce >> ");     
         }// end of menu
         public void GoodBye()
              System.out.println(" You Entered " + b + " To exit Good_bye" );
              System.exit(0);
         }//end of GoodBye
         public void PriceSort()
              System.out.println(" You Entered " + b + " To Sort CD(s) By price ");
              Collections.sort(list, new SortByPrice());
              for(cd s : list)
              System.out.println(s.getName() + ": " + s.getPrice());
         }// end of PriceSort
         public void NameSearch()
                   System.out.println(" You Entered " + b + " To Search CD(s) By Name ");
                   System.out.println("Please Enter The Name Of The CD You Are Searching For " );
                   String search = ei.readString();
                   for(int i=0; i<list.size();i++){
                   if(search.equalsIgnoreCase(list.get(i).getName() )){
                   System.out.println(list.get(i).getName() + " " + list.get(i).getPrice() + " " + list.get(i).getRatings() + " " + list.get(i).getGenre() );
    }//end of NameSearch
         public void ViewList()
                   System.out.println(" You Entered " + b + " To view CD(s) By Name ");
                   for(int i=0; i<list.size();i++)
                   System.out.println(list.get(i).getName() + " " + list.get(i).getPrice() + " " + list.get(i).getRatings() + " " + list.get(i).getGenre() );
         }// end of ViewList
         public void DeleteCd()
                   System.out.println(" You Entered " + b + " To Delete CD(s) By Name ");
                   System.out.println("Please Enter The Name Of The CD You Want to Delete ");
                   String search = ei.readString();
                   for(int i=0; i<list.size();i++)
                   if(search.equalsIgnoreCase(list.get(i).getName() ))
                   System.out.println(list.get(i).getName());
                   list.remove(i);
         }// end of DeleteCD
         public static void main(String[] args) {
         //creating an Instance of EasyIn by object ei. Easy in is a Scanner class for reading
              EasyIn ei = new EasyIn();
              ArrayList<cd> list = new ArrayList <cd> (); // creating an array cd list
              hipHopCollection call = new hipHopCollection();
              ReadWrite rw = new ReadWrite();
                   while (true){
                   call.menu();
                   call.setB();
                   //b = ei.readInt();
                   if(call.getB()==0)
                        call.GoodBye();
                   if(call.getB()==1)
                        call.load();
                        rw.doWriting();// trying to write the cd object to a file
                   if(call.getB()==2)
                   rw.doReading();// trying to read the cd object from a file
                   //call.ViewList();
                   if(call.getB()==3)
                   call.PriceSort();
                   if(call.getB()==4)
                        call.NameSearch();
                   if(call.getB()==5)
                        call.DeleteCd();
         }// end of while
    }// end of main
    }// end of class
    // importing all the packages that we will use
    import java.io.ObjectInputStream;
    import java.io.FileInputStream;
    import java.io.File;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.ObjectOutputStream;
    import java.io.OutputStream;
    import java.io.Serializable;
    public class ReadWrite {
    // these are all the attributes
         private String FileName ="CdCollections.dat";     
         private OutputStream output;
         private ObjectOutputStream oos;
         private FileOutputStream fos;
         private File file;
         private FileInputStream fis;
         private ObjectInputStream ois;
         //creating an empty constructor
         public ReadWrite()
         // we could initialise all the attributes inside this empty constructor
         //creating a constructor with arguments of a file name.
         public ReadWrite(File file)
              this.file=file;
              try
                   //Use a FileOutputStream to send data to a file called CdCollections.dat
                   fos = new FileOutputStream(file,true);
                   Use an ObjectOutputStream to send object data to the
                   FileOutputStream for writing to disk.
                   oos = new ObjectOutputStream (fos);
                   fis=new FileInputStream(file);
                   ois = new ObjectInputStream(fis);
              catch(FileNotFoundException e)
                   System.out.println("File Not Found");
              catch(IOException a)
                   System.out.println(a.getMessage());
                   System.out.println("Please check file permissions of if file is not corrupt");
         }// end of the second constructor
         //the following lines of code will be the accessors and mutators
         * @return the output
         public OutputStream getOutput() {
              return output;
         * @param output the output to set
         public void setOutput(OutputStream output) {
              this.output = output;
         * @return the objStream
         public ObjectOutputStream getOos() {
              return oos;
         * @param objStream the objStream to set
         public void setObjStream(ObjectOutputStream objStream) {
              this.oos = oos;
         public File getFile() {
              return file;
         public void setFile(File file) {
              this.file = file;
         public FileInputStream getFis() {
              return fis;
         public void setFis(FileInputStream fis) {
              this.fis = fis;
         public ObjectInputStream getOis() {
              return ois;
         public void setOis(ObjectInputStream ois) {
              this.ois = ois;
         // the following lines of code will be the methods for reading and writing
    the following method doWriting will write data from the hipHopCollections source code.
    that will be all the cd information.
    Pass our object to the ObjectOutputStream's
    writeObject() method to cause it to be written out
    to disk.
    obj_out.writeObject (myObject);
         public void doWriting()
              hipHopCollection call = new hipHopCollection();
    //creating an Object variable hold that will hold cd data from hipHopCollections invoke
              Object hold = call.getInvoke();// THI COULD BE THE PART WHERE I MADE A MISTAKE
              ReadWrite stream = new ReadWrite (new File(FileName));
              try
              Pass our object to the ObjectOutputStream's
              writeObject() method to cause it to be written out to disk.
              stream.getOos().writeObject(hold);
                   stream.getOos().writeObject(hold);
                   stream.getOos().close();
                   System.out.println("Done writing Object");
              catch (IOException e)
                   System.out.println(e.getMessage());
                   System.out.println("Program Failed To Write To The File");     
              finally
                   System.out.println("The program Has come To An End GoodBye");
         }// end of method DoWriting
    The following method is for reading data from the file written by the above method named
    DoWriting
    // PLEASE NOT THIS IS THE METHOD THAT GIVES ME NULL EXCEPTION
         public void doReading()
         ReadWrite read = new ReadWrite(new File(FileName));
              try{
                   //System.out.println("I AM NOW INSIDE THE TRY TO READ");
                   Object obj = read.getOis().readObject();
                   System.out.println("tried reading the object");
                   cd c = (cd)obj; // trying to cast the object back to cd type
                   System.out.println("I have typed cast the Object");               
                   System.out.println(c.getName());
                   System.out.println(c.getGenre());
                   System.out.println(c.getArtist());
                   System.out.println(c.getPrice());
                   System.out.println(c.getRatings());
                   System.out.println(c.getReleaseDate());
                   read.getOis().close();
              catch(ClassNotFoundException e)
              System.out.println(e.getMessage());
              System.out.println("THE CLASS COULD NOT BE FOUND");
              catch(IOException e)
              System.out.println(e.getMessage());// null
              System.out.println("WE COULD NOT READ THE DATA INSIDE THE FILE");
         }//end of method doReading
    }// end of class ReadWrite

    Cross posted
    http://www.java-forums.org/new-java/59965-writing-reading-serialized-java-object.html
    Moderator advice: Please read the announcement(s) at the top of the forum listings and the FAQ linked from every page. They are there for a purpose.
    Then edit your post and format the code correctly.
    db

  • Periodic Report genration in Weblogic server using Oracle database and EJB3

    Hello All,
    I have to generate reports periodically, when periodicity for report generation is inserted into database(Oracle 11g in my case) using EJB3 entity bean from application server(Weblogic 11g). Immediately on insertion i have to start generation reports in csv format and save these files into the application server directory. My application server and Database are running on different machine.

    Okay, good luck with that. When you have an actual programming problem, feel free to come back and ask for help.

  • Runtime.exec("Perl Script writing and reading on I/O"), handling Streams

    Hi all !!
    In a first place : sorry for my english if it's not really understandable but I try to do as good as possible !
    I'm writing a GUI with Swing that will allow (in one of my multiple tables) the user to run a Perl Script.
    This Perl Script ask the user to choose a Folder ... then read all the files in this folder and for each file (xml File), extract the datas and put them in a database. But when a file that has to be inserted in the database contains this line : <Template_Used name="ST1.mtt"> and if the Template table in my database doesn't have the "ST1.mtt" stored ... the Perl Script ask to the user to give him the path of the file "ST1.mtt" so that the script can put the "ST1.mtt template" datas in the database.
    This script runs well when it is from a windows console.
    But I need a graphic interface !!!
    So I created a JButton "Process a folder".
    When the button is pressed, a JFileChooser appears and ask the user which Folder has to be processed.
    Then a Process is created with the command : ("cmd.exe /C \"C:\\Program Files\\Fluke\\Ansur\\ProcessFolder.bat\").
    The BatFile :
    {code}cd C:\Documents and Settings\tsd\Desktop\Gael-Project\Project_Files
    perl Process.pl
    exit{code}
    At this moment everything is working well.
    But my Process.pl (which is 300 lines long ... and that you don't even want to hear about), ask in a first time the Path of the folder to process and sometimes ask the path to a file (a template file).
    So I need to read and wirte on the STDIN/STDOUT during the exec of the Process.
    In order to handle this I created two different threads : one reading the Process.getInputStream with a BufferedReader and one other writing on the Process.getOutputStream with a PrintWrinter.
    What I need to do is :
    When I read a line from the InputStream saying "I need the path of the ST1.mtt file", I should run a JFileChooser ... the user find the file in the computer ... and I write in the OutputStream the path of the file, so that my Perl Script doesn't have un Unitialised value on <STDIN> and can continue to process !!
    I'm pretty sure it's possible ... because at the moment I just used a trick :
    When the user push the "process a folder" button, I write the paths in the OutputStream before than the script needs it and it works !
    But I need to write in the OutputStream only when it is time !!!
    Any idea ??
    Here are some parts of my code :
    {code}
    String filename = File.separator+"tmp";
              JFileChooser fc = new JFileChooser(new File(filename));
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