Java problem: Cache
***UNI ASSIGNMENT***
I'm not asking for this to be solved for me, far from it.
Due to my poor performance elsewhere I need to score high on this help get me through to the next year of the course. For those who read my post about my personal issues you'll maybe understand.
Anyway I've got my lecture notes covering caches etc...but I have no idea where to start on this, I've racked my brains but I'm still really confused, I've googled it as well and still got no idea. can someone point me in the right direction so I can solve this problem.
Anyone who helps (not solves!!!) I will seriously mail you tea and crumpets or if the sound of crumpets scares you (as with some people) Cookies or some other baked good will have to do.
PROBLEM
You are to construct a program that manages a 0.25 KB cache.
(That is,data upto 256 Bytes can be stored in the cache.)
Cache can be organised in any one of two ways:
Direct Mapped, or
Fully associative.
The program takes address references in the range 0 .. 1023
and determines whether a given address reference is a hit or miss.
It also computes the Miss rate every time a miss is encountered
and at the end displays the overall Miss rate and the contents of the cache.
For displaying the cache contents, you may represent the memory
content at address X simply as MX. You should assume that a cache block
holds 8 Bytes and, where necessary, employ the LRU scheme for block replacement.
The only idea I've had about this is creating several variables each a byte and then processing all the data through an array of bytes and then use a loop to working out whether its a hit or miss etc...
There is some test data but I don't think its really any help.
Thanks for at least reading!
Knotty_Boy wrote:
For those who read my post about my personal issues you'll maybe understand.Those issues have no business here.
Anyway I've got my lecture notes covering caches etc...but I have no idea where to start on this, Then you need to talk to your instructor or engage a private tutor. These forums are not conducive to the "I have no idea where to start" situation.
Anyone who helpsIt's difficult for anybody here to help if you don't show some work and ask a more specific question.
I'm not trying to discourage you, only to be realistic about which resources are appropriate for which kind of help.
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Exist some reason?
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http://publib.boulder.ibm.com/infocenter/db2luw/v9r5/index.jsp?topic=/com.ibm.db2.luw.qb.server.doc/doc/t0008238.html
More over set the ulimit for virtual memory and maximum memory size to unlimited in order to maximize the use of your current physical memory, after that restart DB2.
Please let us know if issue gets resolved.
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import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import java.io.*;
import java.sql.*;
import java.util.*;
import java.util.List;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
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static final int Row_Color_Style_Default=-1,Row_Color_Style_None=0,Row_Color_Style_Blue_Gray=1,Row_Color_Style_Cyan_Gray=2,Row_Color_Style_Blue=3,
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TableModel My_Model;
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RS.beforeFirst();
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Index++;
// if (Test_Ct++>300) break;
catch (Exception e) { e.printStackTrace(); }
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if (Selection_Color!=null) this.Selection_Color=Selection_Color;
// Out("this.Selection_Color="+this.Selection_Color);
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TableModel My_Model=new DefaultTableModel(data,columnNames)
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public int getRowCount() { return data.length; }
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int colIndex=columnAtPoint(p);
int realColumnIndex=convertColumnIndexToModel(colIndex);
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String lastName=(String)model.getValueAt(rowIndex,1);
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public void windowClosed(WindowEvent e) { }
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public void windowGainedFocus(WindowEvent e) { scrollPane.repaint(); }
public void windowIconified(WindowEvent e) { }
public void windowLostFocus(WindowEvent e) { }
public void windowOpening(WindowEvent e) { scrollPane.repaint(); }
public void windowOpened(WindowEvent e) { }
public void windowResized(WindowEvent e) { scrollPane.repaint(); }
public void windowStateChanged(WindowEvent e) { scrollPane.repaint(); }
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if (new File(File_Name).exists())
try
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//Out("Column_Name_Line [ "+Table_Column_Names.length+" ]="+Column_Name_Line);
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//Out(Line);
if (Delimiter.equals(" ")) Line=Line.replaceAll(" {2,}"," ").trim(); // Replace multiple spaces with the delimiter space
if (Line.indexOf(Delimiter)!=-1) Table_Data[Index]=Line.split(Delimiter);
else
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Table_Data[Index][0]=Line;
for (int i=1;i<Table_Column_Names.length;i++) Table_Data[Index]="";
Index++;
Line="";
for (int i=0;i<Table_Data.length;i++)
Line+="[ "+Table_Data[i].length+" ] ";
for (int j=0;j<Table_Data[i].length;j++) Line+=Table_Data[i][j]+" ";
Line+="\n";
Out(Line);
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Table=A_Table_Panel.Table;
scrollPane=A_Table_Panel.scrollPane;
Column_Width=A_Table_Panel.Column_Width;
data=A_Table_Panel.data;
catch (Exception e) { e.printStackTrace(); }
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TableColumn column=null;
Component comp=null;
int headerWidth=0,cellWidth=0;
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TableCellRenderer headerRenderer=table.getTableHeader().getDefaultRenderer();
if (data.length<1) return;
for (int i=0;i<model.getColumnCount();i++)
column=table.getColumnModel().getColumn(i);
comp=headerRenderer.getTableCellRendererComponent(null,column.getHeaderValue(),false,false,0,0);
headerWidth=comp.getPreferredSize().width;
comp=table.getDefaultRenderer(model.getColumnClass(i)).
getTableCellRendererComponent(table,longValues[i],false,false,0,i);
cellWidth=comp.getPreferredSize().width;
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case Header_Width : column.setPreferredWidth(headerWidth);break;
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Column_Width[i]=column.getPreferredWidth();
if (Debug) Out("Initializing width of column "+i+". "+"headerWidth="+headerWidth+"; cellWidth="+cellWidth+" Column_Width["+i+"]="+Column_Width[i]);
// Detects a state change in any of the Lists. Resets the variable corresponding to the selected item in a particular List. Invokes changeFont with the currently selected fontname, style and size attributes.
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public static void Out(String message) { System.out.println(message); }
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// Row_Color_Style=Row_Color_Style_None;
// Row_Color_Style=Row_Color_Style_Blue_Gray;
Row_Color_Style=Row_Color_Style_Cyan_Gray;
// Row_Color_Style=Row_Color_Style_Blue;
// Row_Color_Style=Row_Color_Style_Gray;
// Row_Color_Style=Row_Color_Style_Red_Green;
// Row_Color_Style=Row_Color_Style_Green_Yellow;
// Row_Color_Style=Row_Color_Style_Red_Yellow;
Preffered_Width=Max_Header_Cell_Width;
if (Demo_External_Table) demo=new Table_Panel("External Table Demo",columnNames,data,data.length,false,Demo_External_Table,false,Row_Color_Style,Max_Header_Cell_Width,Default_Selection_Color,true);
else
JFrame Table_Frame=new JFrame("Internal Table Demo");
// demo=new Table_Panel(Nm_Lib.Dir_A_Test+"ELX.csv",false,Row_Color_Style,Preffered_Width,null);
// demo=new Table_Panel(Nm_Lib.Dir_Stock_Data+"ABV_Data.txt",false,Row_Color_Style,Preffered_Width," ");
demo=new Table_Panel("C:/Dir_Stock_Data/EOP.txt",",",false);
// demo=new Table_Panel(Nm_Lib.Dir_Stock_Data+"ABV_Data.txt"," ",false);
Table_Frame.getContentPane().add(demo.scrollPane);
Table_Frame.addWindowListener(new WindowAdapter()
public void windowActivated(WindowEvent e) { }
public void windowClosed(WindowEvent e) { }
public void windowClosing(WindowEvent e) { System.exit(0); }
public void windowDeactivated(WindowEvent e) { }
public void windowDeiconified(WindowEvent e) { demo.repaint(); }
public void windowGainedFocus(WindowEvent e) { demo.repaint(); }
public void windowIconified(WindowEvent e) { }
public void windowLostFocus(WindowEvent e) { }
public void windowOpening(WindowEvent e) { demo.repaint(); }
public void windowOpened(WindowEvent e) { }
public void windowResized(WindowEvent e) { demo.repaint(); }
public void windowStateChanged(WindowEvent e) { demo.repaint(); }
Table_Frame.pack();
Table_Frame.setBounds((Screen_Size.width-Table_Frame.getWidth())/2,(Screen_Size.height-Table_Frame.getHeight())/2,Table_Frame.getWidth(),Table_Frame.getHeight());
Table_Frame.setVisible(true);
public static void main(String[] args)
// Schedule a job for the event-dispatching thread : creating and showing this application's GUI.
SwingUtilities.invokeLater(new Runnable() { public void run() { Create_And_Show_GUI(); } });
* TableSorter is a decorator for TableModels; adding sorting functionality to a supplied TableModel. TableSorter does not store
* or copy the data in its TableModel; instead it maintains a map from the row indexes of the view to the row indexes of the
* model. As requests are made of the sorter (like getValueAt(row, col)) they are passed to the underlying model after the row numbers
* have been translated via the internal mapping array. This way, the TableSorter appears to hold another copy of the table
* with the rows in a different order.
* <p/>
* TableSorter registers itself as a listener to the underlying model, just as the JTable itself would. Events recieved from the model
* are examined, sometimes manipulated (typically widened), and then passed on to the TableSorter's listeners (typically the JTable).
* If a change to the model has invalidated the order of TableSorter's rows, a note of this is made and the sorter will resort the
* rows the next time a value is requested.
* <p/>
* When the tableHeader property is set, either by using the setTableHeader() method or the two argument constructor, the table
* header may be used as a complete UI for TableSorter. The default renderer of the tableHeader is decorated with a renderer
* that indicates the sorting status of each column. In addition, a mouse listener is installed with the following behavior:
* <ul>
* <li>
* Mouse-click: Clears the sorting status of all other columns and advances the sorting status of that column through three
* values: {NOT_SORTED, ASCENDING, DESCENDING} (then back to NOT_SORTED again).
* <li>
* SHIFT-mouse-click: Clears the sorting status of all other columns and cycles the sorting status of the column through the same
* three values, in the opposite order: {NOT_SORTED, DESCENDING, ASCENDING}.
* <li>
* CONTROL-mouse-click and CONTROL-SHIFT-mouse-click: as above except that the changes to the column do not cancel the statuses of columns
* that are already sorting - giving a way to initiate a compound sort.
* </ul>
* <p/>
* This is a long overdue rewrite of a class of the same name that first appeared in the swing table demos in 1997.
* @author Philip Milne
* @author Brendon McLean
* @author Dan van Enckevort
* @author Parwinder Sekhon
* @version 2.0 02/27/04
class TableSorter extends AbstractTableModel
public static final long serialVersionUID=26362862L;
protected TableModel tableModel;
public static final int DESCENDING = -1;
public static final int NOT_SORTED = 0;
public static final int ASCENDING = 1;
private static Directive EMPTY_DIRECTIVE = new Directive(-1, NOT_SORTED);
public static final Comparator COMPARABLE_COMAPRATOR = new Comparator() { public int compare(Object o1, Object o2) { return ((Comparable) o1).compareTo(o2); } };
public static final Comparator LEXICAL_COMPARATOR = new Comparator() { public int compare(Object o1, Object o2) { return o1.toString().compareTo(o2.toString()); } };
private Row[] viewToModel;
private int[] modelToView;
private JTableHeader tableHeader;
private MouseListener mouseListener;
private TableModelListener tableModelListener;
private Map<Class,Comparator> columnComparators = new HashMap<Class,Comparator>();
private List<Directive> sortingColumns = new ArrayList<Directive>();
public TableSorter()
this.mouseListener = new MouseHandler();
this.tableModelListener = new TableModelHandler();
public TableSorter(TableModel tableModel)
this();
setTableModel(tableModel);
public TableSorter(TableModel tableModel, JTableHeader tableHeader)
this();
setTableHeader(tableHeader);
setTableModel(tableModel);
private void clearSortingState()
viewToModel = null;
modelToView = null;
public TableModel getTableModel() { return tableModel; }
public void setTableModel(TableModel tableModel)
if (this.tableModel != null) { this.tableModel.removeTableModelListener(tableModelListener); }
this.tableModel = tableModel;
if (this.tableModel != null) { this.tableModel.addTableModelListener(tableModelListener); }
clearSortingState();
fireTableStructureChanged();
public JTableHeader getTableHeader() { return tableHeader; }
public void setTableHeader(JTableHeader tableHeader)
if (this.tableHeader != null)
this.tableHeader.removeMouseListener(mouseListener);
TableCellRenderer defaultRenderer = this.tableHeader.getDefaultRenderer();
if (defaultRenderer instanceof SortableHeaderRenderer) this.tableHeader.setDefaultRenderer(((SortableHeaderRenderer) defaultRenderer).tableCellRenderer);
this.tableHeader = tableHeader;
if (this.tableHeader != null)
this.tableHeader.addMouseListener(mouseListener);
this.tableHeader.setDefaultRenderer(
new SortableHeaderRenderer(this.tableHeader.getDefaultRenderer()));
public boolean isSorting() { return sortingColumns.size() != 0; }
private Directive getDirective(int column)
for (int i = 0; i < sortingColumns.size(); i++)
Directive directive = (Directive)sortingColumns.get(i);
if (directive.column == column) { return directive; }
return EMPTY_DIRECTIVE;
public int getSortingStatus(int column) { return getDirective(column).direction; }
private void sortingStatusChanged()
clearSortingState();
fireTableDataChanged();
if (tableHeader != null) { tableHeader.repaint(); }
public void setSortingStatus(int column, int status)
Directive directive = getDirective(column);
if (directive != EMPTY_DIRECTIVE) { sortingColumns.remove(directive); }
if (status != NOT_SORTED) { sortingColumns.add(new Directive(column, status)); }
sortingStatusChanged();
protected Icon getHeaderRendererIcon(int column, int size)
Directive directive = getDirective(column);
if (directive == EMPTY_DIRECTIVE) { return null; }
return new Arrow(directive.direction == DESCENDING, size, sortingColumns.indexOf(directive));
private void cancelSorting()
sortingColumns.clear();
sortingStatusChanged();
public void setColumnComparator(Class type, Comparator comparator)
if (comparator == null) { columnComparators.remove(type); }
else { columnComparators.put(type, comparator); }
protected Comparator getComparator(int column)
Class columnType = tableModel.getColumnClass(column);
Comparator comparator = (Comparator) columnComparators.get(columnType);
if (comparator != null) { return comparator; }
if (Comparable.class.isAssignableFrom(columnType)) { return COMPARABLE_COMAPRATOR; }
return LEXICAL_COMPARATOR;
private Row[] getViewToModel()
if (viewToModel == null)
int tableModelRowCount = tableModel.getRowCount();
viewToModel = new Row[tableModelRowCount];
for (int row = 0; row < tableModelRowCount; row++) { viewToModel[row] = new Row(row); }
if (isSorting()) { Arrays.sort(viewToModel); }
return viewToModel;
public int modelIndex(int viewIndex) { return getViewToModel()[viewIndex].modelIndex; }
private int[] getModelToView()
if (modelToView == null)
int n = getViewToModel().length;
modelToView = new int[n];
for (int i = 0; i < n; i++) { modelToView[modelIndex(i)] = i; }
return modelToView;
// TableModel interface methods
public int getRowCount() { return (tableModel == null) ? 0 : tableModel.getRowCount(); }
public int getColumnCount() { return (tableModel == null) ? 0 : tableModel.getColumnCount(); }
public String getColumnName(int column) { return tableModel.getColumnName(column); }
public Class getColumnClass(int column) { return tableModel.getColumnClass(column); }
public boolean isCellEditable(int row, int column) { return tableModel.isCellEditable(modelIndex(row), column); }
public Object getValueAt(int row, int column) { return tableModel.getValueAt(modelIndex(row), column); }
public void setValueAt(Object aValue, int row, int column) { tableModel.setValueAt(aValue, modelIndex(row), column); }
// Helper classes
private class Row implements Comparable
private int modelIndex;
public Row(int index) { this.modelIndex = index; }
public int compareTo(Object o)
int row1 = modelIndex;
int row2 = ((Row) o).modelIndex;
for (Iterator it = sortingColumns.iterator(); it.hasNext();)
Directive directive = (Directive) it.next();
int column = directive.column;
Object o1 = tableModel.getValueAt(row1, column);
Object o2 = tableModel.getValueAt(row2, column);
int comparison = 0;
// Define null less than everything, except null.import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import java.io.*;
import java.sql.*;
import java.util.*;
import java.util.List;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
public class Table_Panel extends JPanel implements ItemListener
public static final long serialVersionUID=26362862L;
static final int Row_Color_Style_Default=-1,Row_Color_Style_None=0,Row_Color_Style_Blue_Gray=1,Row_Color_Style_Cyan_Gray=2,Row_Color_Style_Blue=3,
Row_Color_Style_Gray=4,Row_Color_Style_Red_Green=5,Row_Color_Style_Green_Yellow=6,Row_Color_Style_Red_Yellow=7,
Max_Header_Cell_Width=0,Header_Width=1,Cell_Width=2;
static int Row_Color_Style=Row_Color_Style_Cyan_Gray,Preffered_Width=Header_Width;
// static int Row_Color_Style=Row_Color_Style_None,Preffered_Width=Header_Width;
//boolean Debug=true,
boolean Debug=false,
// Use_Row_Colors=true,
Use_Row_Colors=false;
JFrame Table_Frame;
TableModel My_Model;
JScrollPane scrollPane=new JScrollPane();
public JTable Table;
static String columnNames[],Default_Delimiter=",";
Object[][] data;
static Dimension Screen_Size=Toolkit.getDefaultToolkit().getScreenSize();
int Column_Width[];
static Color Default_Selection_Color=new Color(250,135,200);
Color Selection_Color=Default_Selection_Color;
public Table_Panel(ResultSet RS,String Table_Name,boolean Show_External_Table,int Row_Color_Style,int Preffered_Width,boolean In_Original_Order)
String Value,Table_Column_Names[]=null;
Object[][] Table_Data=null;
int Row_Count,Index=0;
try
if (RS==null) return;
else
RS.last();
Row_Count=RS.getRow();
RS.beforeFirst();
ResultSetMetaData rsmd=RS.getMetaData();
int Column_Count=rsmd.getColumnCount();
Table_Column_Names=new String[Column_Count];
Table_Data=new Object[Row_Count][Column_Count];
for (int i=1;i<=Column_Count;i++) Table_Column_Names[i-1]=rsmd.getColumnLabel(i); // Get column names
//Out("Row_Count="+Row_Count+" Column_Count="+Column_Count);
while (RS.next()) // Get all rows
for (int i=1;i<=Column_Count;i++)
Value=RS.getString(i);
Table_Data[Index][i-1]=(Value==null)?"null":Value;
Index++;
// if (Test_Ct++>300) break;
catch (Exception e) { e.printStackTrace(); }
scrollPane=new Table_Panel(Table_Name,Table_Column_Names,Table_Data,Table_Data.length,false,Show_External_Table,false,Row_Color_Style,Preffered_Width,Selection_Color,In_Original_Order).scrollPane;
public Table_Panel(String[] Table_Column_Names,Object[][] Table_Data,Color Selection_Color,boolean In_Original_Order)
this("",Table_Column_Names,Table_Data,Table_Data.length,false,false,false,Row_Color_Style,Preffered_Width,Selection_Color,In_Original_Order);
public Table_Panel(String Table_Name,String[] Table_Column_Names,Object[][] Table_Data,boolean Show_External_Table,Color Selection_Color,boolean In_Original_Order)
this(Table_Name,Table_Column_Names,Table_Data,Table_Data.length,false,Show_External_Table,false,Row_Color_Style,Preffered_Width,Selection_Color,In_Original_Order);
public Table_Panel(String Table_Name,String[] Table_Column_Names,Object[][] Table_Data,int Row_Count,boolean Is_Child,boolean Show_External_Table,boolean Manage_Attachment,int Row_Color_Style,int Preffered_Width,Color Selection_Color,boolean In_Original_Order)
columnNames=Table_Column_Names;
if (In_Original_Order) data=Table_Data;
else
data=new Object[Table_Data.length][columnNames.length];
for (int row=0;row<Table_Data.length;row++)
data[row]=new Object[columnNames.length];
for (int Column=0;Column<Table_Data[row].length;Column++) data[row][Column]=Table_Data[Table_Data.length-1-row][Column];
Column_Width=new int[columnNames.length];
this.Row_Color_Style=Row_Color_Style;
Use_Row_Colors=(Row_Color_Style!=Row_Color_Style_None);
this.Preffered_Width=Preffered_Width;
if (Selection_Color!=null) this.Selection_Color=Selection_Color;
// Out("this.Selection_Color="+this.Selection_Color);
// TableModel My_Model=new DefaultTableModel(Table_Data,columnNames)
TableModel My_Model=new DefaultTableModel(data,columnNames)
public int getColumnCount() { return columnNames.length; }
public int getRowCount() { return data.length; }
public String getColumnName(int col) { return columnNames[col]; }
public Object getValueAt(int row,int col)
// Out(row+","+col+"["+data[row][col]+"] data.length="+data.length+" data[0].length="+data[0].length);
return (data[row][col]==null)?"":((data[row][col] instanceof Boolean)?data[row][col]:data[row][col].toString()); // Non-boolean values will have bgcolor
public Class getColumnClass(int column)
Class returnValue;
if ((column>=0) && (column<getColumnCount())) returnValue=getValueAt(0,column).getClass();
else returnValue=Object.class;
return returnValue;
// JTable uses this method to determine the default renderer/editor for each cell. If we didn't implement this method, then the last column would contain text ("true"/"false"), rather than a check box.
// public Class getColumnClass(int c) { return getValueAt(0,c).getClass(); }
// Don't need to implement this method unless your table's editable.
public boolean isCellEditable(int row,int col)
//Note that the data/cell address is constant, no matter where the cell appears onscreen.
if (col<0) return false;
else return true;
// Don't need to implement this method unless your table's data can change.
public void setValueAt(Object value,int row,int col)
String Execution_Dir=getClass().getProtectionDomain().getCodeSource().getLocation().toString();
if (Debug) System.out.println("Execution_Dir="+Execution_Dir+"\nLast_Value="+Table_Grid_Cell_Renderer.Last_Value+" Setting value at [ "+row+","+col+" ] to "+value+" (an instance of "+value.getClass()+")");
if (Execution_Dir.toLowerCase().indexOf("c:/")!=-1 || value.getClass()==Boolean.class || !Use_Row_Colors) data[row][col]=value;
// else data[row][col]=(Table_Grid_CellRenderer.Last_Value==null)?value:value.toString().substring(Table_Grid_CellRenderer.Last_Value.toString().length());
fireTableCellUpdated(row,col);
if (Debug)
System.out.println("New value of data :");
printDebugData();
private void printDebugData()
int numRows=getRowCount();
int numCols=getColumnCount();
for (int i=0;i<numRows;i++)
System.out.print(" row "+i+":");
for (int j=0;j<numCols;j++) System.out.print(" "+data[i][j]);
System.out.println();
System.out.println("--------------------------------------------------------------------------");
TableSorter sorter=new TableSorter(My_Model);
Table=new JTable(sorter)
// Table=new JTable(My_Model)
public static final long serialVersionUID=26362862L;
public String getToolTipText(MouseEvent e) // Implement table cell tool tips.
Object Cell_Tip;
String tip=null;
java.awt.Point p=e.getPoint();
int rowIndex=rowAtPoint(p);
int colIndex=columnAtPoint(p);
int realColumnIndex=convertColumnIndexToModel(colIndex);
Cell_Tip=getValueAt(rowIndex,colIndex);
// if (realColumnIndex == 2) //Sport column
tip=Cell_Tip.toString();
else if (realColumnIndex == 4) //Veggie column
TableModel model=getModel();
String firstName=(String)model.getValueAt(rowIndex,0);
String lastName=(String)model.getValueAt(rowIndex,1);
Boolean veggie=(Boolean)model.getValueAt(rowIndex,4);
if (Boolean.TRUE.equals(veggie)) tip=firstName+" "+lastName+" is a vegetarian";
else tip=firstName+" "+lastName+" is not a vegetarian";
else
// You can omit this part if you know you don't have any renderers that supply their own tool tips.
tip=super.getToolTipText(e);
return tip;
// RowSorter<TableModel> sorter=new TableRowSorter<TableModel>(My_Model);
// Table.setRowSorter(sorter);
Table.setSelectionBackground(this.Selection_Color);
int Table_Height=Table.getRowHeight()*Row_Count;
// sorter.addMouseListenerToHeaderInTable(Table); // ADDED THIS
sorter.setTableHeader(Table.getTableHeader());
if (Table_Column_Names.length>20) Table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
if (Manage_Attachment) Table.setPreferredScrollableViewportSize(new Dimension(500,(Table_Height>850)?850:Table_Height));
else Table.setPreferredScrollableViewportSize(new Dimension(1000,(Table_Height>850)?850:Table_Height));
if (Use_Row_Colors) Table.setDefaultRenderer(Object.class,new Table_Grid_Cell_Renderer());
//Create the scroll pane and add the table to it.
scrollPane=new JScrollPane(Table);
//Set up column sizes.
initColumnSizes(Table,My_Model);
//Add the scroll pane to this window.
if (Show_External_Table)
Table_Frame=new JFrame(Table_Name);
Table_Frame.getContentPane().add(scrollPane);
Table_Frame.addWindowListener(new WindowAdapter()
public void windowActivated(WindowEvent e) { }
public void windowClosed(WindowEvent e) { }
public void windowClosing(WindowEvent e) { System.exit(0); }
public void windowDeactivated(WindowEvent e) { }
public void windowDeiconified(WindowEvent e) { scrollPane.repaint(); }
public void windowGainedFocus(WindowEvent e) { scrollPane.repaint(); }
public void windowIconified(WindowEvent e) { }
public void windowLostFocus(WindowEvent e) { }
public void windowOpening(WindowEvent e) { scrollPane.repaint(); }
public void windowOpened(WindowEvent e) { }
public void windowResized(WindowEvent e) { scrollPane.repaint(); }
public void windowStateChanged(WindowEvent e) { scrollPane.repaint(); }
Table_Frame.pack();
Table_Frame.setBounds((Screen_Size.width-Table_Frame.getWidth())/2,(Screen_Size.height-Table_Frame.getHeight())/2,Table_Frame.getWidth(),Table_Frame.getHeight());
Table_Frame.setVisible(true);
if (Is_Child) Table_Frame.addComponentListener(new ComponentAdapter() { public void componentClosing(ComponentEvent e) { System.exit(0); } });
else add(scrollPane);
public Table_Panel(String File_Name) { this(File_Name,false,Row_Color_Style_Cyan_Gray,Preffered_Width,null,Default_Selection_Color,true); }
public Table_Panel(String File_Name,int Row_Color_Style,boolean In_Original_Order) { this(File_Name,false,Row_Color_Style,Preffered_Width,null,Default_Selection_Color,In_Original_Order); }
public Table_Panel(String File_Name,String Delimiter,boolean In_Original_Order) { this(File_Name,false,Row_Color_Style_Cyan_Gray,Preffered_Width,Delimiter,Default_Selection_Color,In_Original_Order); }
public Table_Panel(String File_Name,int Preffered_Width,String Delimiter,boolean In_Original_Order) { this(File_Name,false,Row_Color_Style,Preffered_Width,Delimiter,Default_Selection_Color,In_Original_Order); }
public Table_Panel(String File_Name,int Row_Color_Style,int Preffered_Width,String Delimiter,boolean In_Original_Order) { this(File_Name,false,Row_Color_Style,Preffered_Width,Delimiter,Default_Selection_Color,In_Original_Order); }
public Table_Panel(String File_Name,boolean Show_External_Table,boolean In_Original_Order) { this(File_Name,Show_External_Table,Row_Color_Style,Preffered_Width,null,Default_Selection_Color,In_Original_Order); }
public Table_Panel(String File_Name,boolean Show_External_Table,String Delimiter,boolean In_Original_Order) { this(File_Name,Show_External_Table,Row_Color_Style,Preffered_Width,Delimiter,Default_Selection_Color,In_Original_Order); }
public Table_Panel(String File_Name,boolean Show_External_Table,int Row_Color_Style,int Preffered_Width,String Delimiter,Color Selection_Color,boolean In_Original_Order)
String Table_Column_Names[],Column_Name_Line="";
int Row_Count=0,Index=0;
boolean Is_Child=false,Manage_Attachment=false;
StringTokenizer ST;
if (Delimiter==null) Delimiter=Default_Delimiter;
if (new File(File_Name).exists())
try
String Line,Str=Tool_Lib.Read_File(File_Name).toString();
ST=new StringTokenizer(Str,"\n");
Line=ST.nextToken();
Row_Count=ST.countTokens();
Object[][] Table_Data=new Object[Row_Count][];
if (Delimiter.equals(" ")) Line=Line.replaceAll(" {2,}"," ").trim(); // Replace multiple spaces with the delimiter space
Table_Column_Names=Line.split(Delimiter);
columnNames=Table_Column_Names;
for (int i=0;i<Table_Column_Names.length;i++) Column_Name_Line+=Table_Column_Names[i]+" ";
//Out("Column_Name_Line [ "+Table_Column_Names.length+" ]="+Column_Name_Line);
while (ST.hasMoreTokens())
Line=ST.nextToken();
//Out(Line);
if (Delimiter.equals(" ")) Line=Line.replaceAll(" {2,}"," ").trim(); // Replace multiple spaces with the delimiter space
if (Line.indexOf(Delimiter)!=-1) Table_Data[Index]=Line.split(Delimiter);
else
Table_Data[Index]=new Object[Table_Column_Names.length];
Table_Data[Index][0]=Line;
for (int i=1;i<Table_Column_Names.length;i++) Table_Data[Index]="";
Index++;
Line="";
for (int i=0;i<Table_Data.length;i++)
Line+="[ "+Table_Data[i].length+" ] ";
for (int j=0;j<Table_Data[i].length;j++) Line+=Table_Data[i][j]+" ";
Line+="\n";
Out(Line);
Table_Panel A_Table_Panel=new Table_Panel(File_Name,Table_Column_Names,Table_Data,Row_Count,Is_Child,Show_External_Table,Manage_Attachment,Row_Color_Style,Preffered_Width,Selection_Color,In_Original_Order);
Table=A_Table_Panel.Table;
scrollPane=A_Table_Panel.scrollPane;
Column_Width=A_Table_Panel.Column_Width;
data=A_Table_Panel.data;
catch (Exception e) { e.printStackTrace(); }
public void setPreferredSize(Dimension A_Dimension) { scrollPane.setPreferredSize(A_Dimension); }
// This method picks good column sizes. If all column heads are wider than the column's cells' contents, then you can just use column.sizeWidthToFit().
void initColumnSizes(JTable table,TableModel model)
TableColumn column=null;
Component comp=null;
int headerWidth=0,cellWidth=0;
Object[] longValues=(data.length>0)?data[0]:null;
TableCellRenderer headerRenderer=table.getTableHeader().getDefaultRenderer();
if (data.length<1) return;
for (int i=0;i<model.getColumnCount();i++)
column=table.getColumnModel().getColumn(i);
comp=headerRenderer.getTableCellRendererComponent(null,column.getHeaderValue(),false,false,0,0);
headerWidth=comp.getPreferredSize().width;
comp=table.getDefaultRenderer(model.getColumnClass(i)).
getTableCellRendererComponent(table,longValues[i],false,false,0,i);
cellWidth=comp.getPreferredSize().width;
switch (Preffered_Width)
case Max_Header_Cell_Width : column.setPreferredWidth(Math.max(headerWidth,cellWidth));break;
case Header_Width : column.setPreferredWidth(headerWidth);break;
case Cell_Width : column.setPreferredWidth(cellWidth);break;
Column_Width[i]=column.getPreferredWidth();
if (Debug) Out("Initializing width of column "+i+". "+"headerWidth="+headerWidth+"; cellWidth="+cellWidth+" Column_Width["+i+"]="+Column_Width[i]);
// Detects a state change in any of the Lists. Resets the variable corresponding to the selected item in a particular List. Invokes changeFont with the currently selected fontname, style and size attributes.
public void itemStateChanged(ItemEvent e)
Out(e.toString());
if (e.getStateChange() != ItemEvent.SELECTED) return;
Object list=e.getSource();
public static void Out(String message) { System.out.println(message); }
// Create the GUI and show it. For thread safety, this method should be invoked from the event-dispatching thread.
static void Create_And_Show_GUI()
boolean Demo_External_Table=true;
// boolean Demo_External_Table=false;
final Table_Panel demo;
String[] columnNames={"First Names","Last Names","Sport","Num of Years","Vegetarian"};
Object[][] data={{"Mary","Campione","Snowboarding"+"[123456789]",new Integer(5),new Boolean(false)},
{"Alison","Huml","Rowing"+":123456789]",new Integer(3),new Boolean(true)},
{"Frank","Ni","Running"+":123456789", new Integer(12), new Boolean(false)},
{"Kathy","Walrath","Chasing toddlers"+"<123456789>", new Integer(2), new Boolean(false)},
{"Mark", "Andrews","Speed reading",new Integer(20),new Boolean(true)},
{"Angela","Lih","Teaching high school",new Integer(36),new Boolean(false)} };
// Row_Color_Style=Row_Color_Style_Default;
// Row_Color_Style=Row_Color_Style_None;
// Row_Color_Style=Row_Color_Style_Blue_Gray;
Row_Color_Style=Row_Color_Style_Cyan_Gray;
// Row_Color_Style=Row_Color_Style_Blue;
// Row_Color_Style=Row_Color_Style_Gray;
// Row_Color_Style=Row_Color_Style_Red_Green;
// Row_Color_Style=Row_Color_Style_Green_Yellow;
// Row_Color_Style=Row_Color_Style_Red_Yellow;
Preffered_Width=Max_Header_Cell_Width;
if (Demo_External_Table) demo=new Table_Panel("External Table Demo",columnNames,data,data.length,false,Demo_External_Table,false,Row_Color_Style,Max_Header_Cell_Width,Default_Selection_Color,true);
else
JFrame Table_Frame=new JFrame("Internal Table Demo");
// demo=new Table_Panel(Nm_Lib.Dir_A_Test+"ELX.csv",false,Row_Color_Style,Preffered_Width,null);
// demo=new Table_Panel(Nm_Lib.Dir_Stock_Data+"ABV_Data.txt",false,Row_Color_Style,Preffered_Width," ");
demo=new Table_Panel("C:/Dir_Stock_Data/EOP.txt",",",false);
// demo=new Table_Panel(Nm_Lib.Dir_Stock_Data+"ABV_Data.txt"," ",false);
Table_Frame.getContentPane().add(demo.scrollPane);
Table_Frame.addWindowListener(new WindowAdapter()
public void windowActivated(WindowEvent e) { }
public void windowClosed(WindowEvent e) { }
public void windowClosing(WindowEvent e) { System.exit(0); }
public void windowDeactivated(WindowEvent e) { }
public void windowDeiconified(WindowEvent e) { demo.repaint(); }
public void windowGainedFocus(WindowEvent e) { demo.repaint(); }
public void windowIconified(WindowEvent e) { }
public void windowLostFocus(WindowEvent e) { }
public void windowOpening(WindowEvent e) { demo.repaint(); }
public void windowOpened(WindowEvent e) { }
public void windowResized(WindowEvent e) { demo.repaint(); }
public void windowStateChanged(WindowEvent e) { demo.repaint(); }
Table_Frame.pack();
Table_Frame.setBounds((Screen_Size.width-Table_Frame.getWidth())/2,(Screen_Size.height-Table_Frame.getHeight())/2,Table_Frame.getWidth(),Table_Frame.getHeight());
Table_Frame.setVisible(true);
public static void main(String[] args)
// Schedule a job for the event-dispatching thread : creating and showing this application's GUI.
SwingUtilities.invokeLater(new Runnable() { public void run() { Create_And_Show_GUI(); } });
* TableSorter is a decorator for TableModels; adding sorting functionality to a supplied TableModel. TableSorter does not store
* or copy the data in its TableModel; instead it maintains a map from the row indexes of the view to the row indexes of the
* model. As requests are made of the sorter (like getValueAt(row, col)) they are passed to the underlying model after the row numbers
* have been translated via the internal mapping array. This way, the TableSorter appears to hold another copy of the table
* with the rows in a different order.
* <p/>
* TableSorter registers itself as a listener to the underlying model, just as the JTable itself would. Events recieved from the model
* are examined, sometimes manipulated (typically widened), and then passed on to the TableSorter's listeners (typically the JTable).
* If a change to the model has invalidated the order of TableSorter's rows, a note of this is made and the sorter will resort the
* rows the next time a value is requested.
* <p/>
* When the tableHeader property is set, either by using the setTableHeader() method or the two argument constructor, the table
* header may be used as a complete UI for TableSorter. The default renderer of the tableHeader is decorated with a renderer
* that indicates the sorting status of each column. In addition, a mouse listener is installed with the following behavior:
* <ul>
* <li>
* Mouse-click: Clears the sorting status of all other columns and advances the sorting status of that column through three
* values: {NOT_SORTED, ASCENDING, DESCENDING} (then back to NOT_SORTED again).
* <li>
* SHIFT-mouse-click: Clears the sorting status of all other columns and cycles the sorting status of the column through the same
* three values, in the opposite order: {NOT_SORTED, DESCENDING, ASCENDING}.
* <li>
* CONTROL-mouse-click and CONTROL-SHIFT-mouse-click: as above except that the changes to the column do not cancel the statuses of columns
* that are already sorting - giving a way to initiate a compound sort.
* </ul>
* <p/>
* This is a long overdue rewrite of a class of the same name that first appeared in the swing table demos in 1997.
* @author Philip Milne
* @author Brendon McLean
* @author Dan van Enckevort
* @author Parwinder Sekhon
* @version 2.0 02/27/04
class TableSorter extends AbstractTableModel
public static final long serialVersionUID=26362862L;
protected TableModel tableModel;
public static final int DESCENDING = -1;
public static final int NOT_SORTED = 0;
public static final int ASCENDING = 1;
private static Directive EMPTY_DIRECTIVE = new Directive(-1, NOT_SORTED);
public static final Comparator COMPARABLE_COMAPRATOR = new Comparator() { public int compare(Object o1, Object o2) { return ((Comparable) o1).compareTo(o2); } };
public static final Comparator LEXICAL_COMPARATOR = new Comparator() { public int compare(Object o1, Object o2) { return o1.toString().compareTo(o2.toString()); } };
private Row[] viewToModel;
private int[] modelToView;
private JTableHeader tableHeader;
private MouseListener mouseListener;
private TableModelListener tableModelListener;
private Map<Class,Comparator> columnComparators = new HashMap<Class,Comparator>();
private List<Directive> sortingColumns = new ArrayList<Directive>();
public TableSorter()
this.mouseListener = new MouseHandler();
this.tableModelListener = new TableModelHandler();
public TableSorter(TableModel tableModel)
this();
setTableModel(tableModel);
public TableSorter(TableModel tableModel, JTableHeader tableHeader)
this();
setTableHeader(tableHeader);
setTableModel(tableModel);
private void clearSortingState()
viewToModel = null;
modelToView = null;
public TableModel getTableModel() { return tableModel; }
public void setTableModel(TableModel tableModel)
if (this.tableModel != null) { this.tableModel.removeTableModelListener(tableModelListener); }
this.tableModel = tableModel;
if (this.tableModel != null) { this.tableModel.addTableModelListener(tableModelListener); }
clearSortingState();
fireTableStructureChanged();
public JTableHeader getTableHeader() { return tableHeader; }
public void setTableHeader(JTableHeader tableHeader)
if (this.tableHeader != null)
this.tableHeader.removeMouseListener(mouseListener);
TableCellRenderer defaultRenderer = this.tableHeader.getDefaultRenderer();
if (defaultRenderer instanceof SortableHeaderRenderer) this.tableHeader.setDefaultRenderer(((SortableHeaderRenderer) defaultRenderer).tableCellRenderer);
this.tableHeader = tableHeader;
if (this.tableHeader != null)
this.tableHeader.addMouseListener(mouseListener);
this.tableHeader.setDefaultRenderer(
new SortableHeaderRenderer(this.tableHeader.getDefaultRenderer()));
public boolean isSorting() { return sortingColumns.size() != 0; }
private Directive getDirective(int column)
for (int i = 0; i < sortingColumns.size(); i++)
Directive directive = (Directive)sortingColumns.get(i);
if (directive.column == column) { return directive; }
return EMPTY_DIRECTIVE;
public int getSortingStatus(int column) { return getDirective(column).direction; }
private void sortingStatusChanged()
clearSortingState();
fireTableDataChanged();
if (tableHeader != null) { tableHeader.repaint(); }
public void setSortingStatus(int column, int status)
Directive directive = getDirective(column);
if (directive != EMPTY_DIRECTIVE) { sortingColumns.remove(directive); }
if (status != NOT_SORTED) { sortingColumns.add(new Directive(column, status)); }
sortingStatusChanged();
protected Icon getHeaderRendererIcon(int column, int size)
Directive directive = getDirective(column);
if (directive == EMPTY_DIRECTIVE) { return null; }
return new Arrow(directive.direction == DESCENDING, size, sortingColumns.indexOf(directive));
private void cancelSorting()
sortingColumns.clear();
sortingStatusChanged();
public void setColumnComparator(Class type, Comparator comparator)
if (comparator == null) { columnComparators.remove(type); }
else { columnComparators.put(type, comparator); }
protected Comparator getComparator(int column)
Class columnType = tableModel.getColumnClass(column);
Comparator comparator = (Comparator) columnComparators.get(columnType);
if (comparator != null) { return comparator; }
if (Comparable.class.isAssignableFrom(columnType)) { return COMPARABLE_COMAPRATOR; }
return LEXICAL_COMPARATOR;
private Row[] getViewToModel()
if (viewToModel == null)
int tableModelRowCount = tableModel.getRowCount();
viewToModel = new Row[tableModelRowCount];
for (int row = 0; row < tableModelRowCount; row++) { viewToModel[row] = new Row(row); }
if (isSorting()) { Arrays.sort(viewToModel); }
return viewToModel;
public int modelIndex(int viewIndex) { return getViewToModel()[viewIndex].modelIndex; }
private int[] getModelToView()
if (modelToView == null)
int n = getViewToModel().length;
modelToView = new int[n];
for (int i = 0; i < n; i++) { modelToView[modelIndex(i)] = i; }
return modelToView;
// TableModel interface methods
public int getRowCount() { return (tableModel == null) ? 0 : tableModel.getRowCount(); }
public int getColumnCount() { return (tableModel == null) ? 0 : tableModel.getColumnCount(); }
public String getColumnName(int column) { return tableModel.getColumnName(column); }
public Class getColumnClass(int column) { return tableModel.getColumnClass(column); }
public boolean isCellEditable(int row, int column) { return tableModel.isCellEditable(modelIndex(row), column); }
public Object getValueAt(int row, int column) { return tableModel.getValueAt(modelIndex(row), column); }
public void setValueAt(Object aValue, int row, int column) { tableModel.setValueAt(aValue, modelIndex(row), column); }
// Helper classes
private class Row implements Comparable
private int modelIndex;
public Row(int index) { this.modelIndex = index; }
public int compareTo(Object o)
int row1 = modelIndex;
int row2 = ((Row) o).modelIndex;
for (Iterator it = sortingColumns.iterator(); it.hasNext();)
Directive directive = (Directive) it.next();
int column = directive.column;
Object o1 = tableModel.getValueAt(row1, column);
Object o2 = tableModel.getValueAt(row2, column);
int comparison = 0;
// Define null less than everything, except null.
if (o1 == null && o2 == null) { comparison = 0; }
else if (o1 == null) { comparison = -1; }
else if (o2 == null) { comparison = 1; }
else { comparison = getComparator(column).compare(o1, o2); }
if (comparison != 0) { return directive.direction == DESCENDING ? -comparison : comparison; }
return 0;
private class TableModelHandler implements TableModelListener
public void tableChanged(TableModelEvent e)
// If we're not sorting by anything -
Oracle Application Server 10g Java Object Cache
Hi,
I am new to Java and looking for a java caching framework and just came across Oracle Application Server 10g Java Object Cache. I am unable to find 11g version of the same. Is it not supported any more?
Can I use this with weblogic server? Please suggest if any other alternatives.
Thanks,
ManojBump.
I definitely don't see the same file: C:\dev\jdevstudio10134\javacache\lib\cache.jar in the Oracle JDEV tree. Is there a suggested alternative? -
i have 10.6 and the latest download of java. I am trying to run Scottrader Streaming quotes and it locks up constantly/ Tech support suggest it is a java problem and i have a bad instalition of jave which i do not understand as software update installed it for me. the problem is that the java application will suddenly stop running/ any ideas? scottrade suffested reinstalling java. ig that is needed how do i unstall java?
If Java functions at all, then it is not apt to be an issue with the Java installation. There's really no such thing as a "bad installation of Java". Java will run or it will crash. Lock-ups are generally the result of application errors or communication errors (e.g., it's waiting on a responsed from a server that never comes).
You can reinstall Java using Pacifist and your restore DVD. I doubt that it will be worth your time, however. -
Java Object Cache have wired behaviour
HI,
I am trying to get my Oracle Java Object Cache working but I am observing some really stange behaviour which has stop it working. So any help will be really useful (10.1.3 and 10.1.2.0.2). I will explain:
Progammaticly I have setup a parent region call 'DatabaseDataCache' and a sub-region call 'country'. In this region I have defined my object call countriesDto' with a Attribuite that has a CaheLoader attached. In my cache loader I connects to a Entity EJB that loads a bunch of DTOs into the cache.
What is strange is that when i run the unit test on the code (cactus). The cache seems to call the cache loader 3 times consequtively before the EJB will load the data (i know this due to debuging messages)
Then in the actual implmentation I have the cache setup code of the in the init() of the servlet but again the cache loader doesn't seem to able to call the ejb it requires. Ones the cache is access it trys to call the cache loader and of course the ejb dosn't get called and is returning me a NullPointerError as I am trying to acces the local interface (in the cache loader). This is strange as in the cactus test it actually calls the ejb ok bit only on the third attemp.
I am abit puzzled with this so any help will be much appreciated.
CharlieI think I have got what you need. The following is the cactus test class that test the getCountries method in my session ejb:
public class WebinUtilTest extends ServletTestCase {
private CacheAccess globParCache;
public void setUp() throws Exception {
CacheAccess.defineRegion("DatabaseDataCache");
globParCache = CacheAccess.getAccess("DatabaseDataCache");
globParCache.defineSubRegion("country");
Attributes cAtt = new Attributes();
cAtt.setLoader(new CountryCacheLoader());
CacheAccess globCountCache = globParCache.getSubRegion("country");
globCountCache.defineObject("countriesDto", cAtt);
globCountCache.preLoad("countriesDto");
globCountCache.close();
globParCache.close();
public void testGetCountries() throws Exception{
WebinUtilLocal wuLoc = HomeFactory.getWebinUtilLocalHome().create();
String[] countries = wuLoc.getCountries();
assertTrue(countries.length >0);
public void tearDown() throws Exception {
if (globParCache != null){
CacheAccess gCache = CacheAccess.getAccess("DatabaseDataCache");
gCache.destroy();
When I run this test here is the stack trace I am getting (in order):
06/01/05 15:54:14 load entred for country cache loader: Thu Jan 05 15:54:14 GMT 2006
06/01/05 15:54:14 java.lang.Exception: Stack trace
06/01/05 15:54:14 at java.lang.Thread.dumpStack(Thread.java:1064)
06/01/05 15:54:14 at uk.ac.ebi.submission.util.CountryCacheLoader.load(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheLoader.callLoad(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheHandle.findObject(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheHandle.asyncLoad(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.Task.execute(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.WorkerThread.run(Unknown Source)
06/01/05 15:54:14 WebinUtil Session Started: Thu Jan 05 15:54:14 GMT 2006
06/01/05 15:54:14 load entred for country cache loader Thu Jan 05 15:54:14 GMT 2006
06/01/05 15:54:14 java.lang.Exception: Stack trace
06/01/05 15:54:14 at java.lang.Thread.dumpStack(Thread.java:1064)
06/01/05 15:54:14 at uk.ac.ebi.submission.util.CountryCacheLoader.load(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheLoader.callLoad(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheHandle.findObject(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheHandle.locateObject(Unknown Source)
06/01/05 15:54:14 at oracle.ias.cache.CacheAccess.get(Unknown Source)
06/01/05 15:54:14 at uk.ac.ebi.submission.ejb.session.WebinUtilBean.getCountries(Unknown Source)
06/01/05 15:54:14 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
06/01/05 15:54:14 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
06/01/05 15:54:14 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
06/01/05 15:54:14 at java.lang.reflect.Method.invoke(Method.java:324)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:39)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:45)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:62)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:43)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.JAASInterceptor$1.run(JAASInterceptor.java:32)
06/01/05 15:54:14 at java.security.AccessController.doPrivileged(Native Method)
06/01/05 15:54:14 at javax.security.auth.Subject.doAs(Subject.java:379)
06/01/05 15:54:14 at com.evermind.server.ThreadState.runAs(ThreadState.java:637)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.JAASInterceptor.invoke(JAASInterceptor.java:36)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:43)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:56)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:43)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.SecurityRoleInterceptor.invoke(SecurityRoleInterceptor.java:46)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:43)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:62)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:43)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.system.RunningStateInterceptor.invoke(RunningStateInterceptor.java:28)
06/01/05 15:54:14 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:43)
06/01/05 15:54:14 at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:106)
06/01/05 15:54:14 at WebinUtilLocal_StatelessSessionBeanWrapper50.getCountries(WebinUtilLocal_StatelessSessionBeanWrapper50.java: 310)
06/01/05 15:54:14 at uk.ac.ebi.submission.cactus.session.WebinUtilTest.testGetCountries(Unknown Source)
06/01/05 15:54:14 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
06/01/05 15:54:14 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
06/01/05 15:54:14 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
06/01/05 15:54:14 at java.lang.reflect.Method.invoke(Method.java:324)
06/01/05 15:54:14 at junit.framework.TestCase.runTest(TestCase.java:154)
06/01/05 15:54:14 at junit.framework.TestCase.runBare(TestCase.java:127)
06/01/05 15:54:14 at org.apache.cactus.internal.AbstractCactusTestCase.runBareServer(AbstractCactusTestCase.java:153)
06/01/05 15:54:14 at org.apache.cactus.internal.server.AbstractWebTestCaller.doTest(AbstractWebTestCaller.java:119)
06/01/05 15:54:14 at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody0(AbstractWebTestControl ler.java:93)
06/01/05 15:54:14 at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody1$advice(AbstractWebTest Controller.java:224)
06/01/05 15:54:14 at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest(AbstractWebTestController.java)
06/01/05 15:54:14 at org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody2(ServletTestRedirector.java:101)
06/01/05 15:54:14 at org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody3$advice(ServletTestRedirector.java:224)
06/01/05 15:54:14 at org.apache.cactus.server.ServletTestRedirector.doPost(ServletTestRedirector.java)
06/01/05 15:54:14 at org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody0(ServletTestRedirector.java:72)
06/01/05 15:54:14 at org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody1$advice(ServletTestRedirector.java:224)
06/01/05 15:54:14 at org.apache.cactus.server.ServletTestRedirector.doGet(ServletTestRedirector.java)
06/01/05 15:54:14 at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
06/01/05 15:54:14 at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
06/01/05 15:54:14 at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
06/01/05 15:54:14 at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:382)
06/01/05 15:54:14 at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:701)
06/01/05 15:54:14 at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:397)
06/01/05 15:54:14 at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:833)
06/01/05 15:54:14 at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:430)
06/01/05 15:54:14 at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:216)
06/01/05 15:54:14 at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:119)
06/01/05 15:54:14 at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
06/01/05 15:54:14 at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:215)
06/01/05 15:54:14 at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:232)
06/01/05 15:54:14 at oracle.oc4j.network.ServerSocketAcceptHandler.access$1000(ServerSocketAcceptHandler.java:35)
06/01/05 15:54:14 at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:819)
06/01/05 15:54:14 at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
06/01/05 15:54:14 at java.lang.Thread.run(Thread.java:534)
Hope this is enough information.
Thanks
Charlie -
Error Code 16 on Mac with Newly-Installed Yosemite (a Java problem?)
Like many out there I am unable to use CS6 applications at all after an OS update to Yosemite (in my case from 10.8.5, on my 2012 iMac). I get an Error 16 message, and a Java problem error message.
I've read many posts about fixing this issue, including the Adobe gospel very specific to this problem—about changing the permissions in a couple of folders—, which I found here: https://helpx.adobe.com/x-productkb/policy-pricing/configuration-error-cs5.html I did exactly as directed and saw no change in the problem.
I also read that the Java version necessary for CS6 products to run on Yosemite is a boondoggle in itself. Java 6 is apparently necessary for CS6 products to run, but that version is insecure, and besides, it's old. Java 8 Build 31 is the current and safe version but it apparently is incompatible with none but the most recently-updated Adobe products. Several posts on Adobe's support pages suggest a hacky fix for this Java issue, which involves downloading and installing the latest Java version from Oracle, and then creating specifically-named empty folders on one's hard drive within a couple of obscure System/Library/Java folders:
http://oliverdowling.com.au/2014/03/28/java-se-8-on-mac-os-x/
https://forums.adobe.com/message/7193884
I did this too, and again saw no change in the problem.
Re-installing my CS6 suite has not worked, either. I receive the same error code message when starting up any of the applications. At this point I've been forced to go back to my previous operating system, since I am heavily reliant on CS6 to do my work each day.
I understand that many people are having this trouble after updating to Yosemite, and more than a few posts on these forums indicate this is true even for people like me who've followed Adobe's purported fix that I linked above. Has anyone in userland or at Adobe found anything lately that could help here?uninstall cs6 and clean (Use the CC Cleaner Tool to solve installation problems | CC, CS3-CS6).
update your os, Java for OS X 2014-001
then install cs6. -
Installing 9.2.0.4.0 on EL4 - Can't start netca, JAVA problem!!!!
Dear all,
Please help with my Java problem. Thanks in advance.
After successfully installed Oracle 9.2.0.4.0 on EL4, I tried to start netca but I received this error message:
[oracle@localhost bin]$ ./netca: line 138: /u01/app/oracle/product/9.2.0.4.0/JRE/bin/jre: No such file or directory
The JRE link at $ORACLE_HOME is as follows:
lrwxrwxrwx 1 oracle oinstall 21 Oct 27 17:41 JRE -> /usr/java/jre1.6.0_03
.bash_profile as follows:
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/9.2.0.4.0; export ORACLE_HOME
ORACLE_TERM=xterm; export ORACLE_TERM
PATH=$ORACLE_HOME/bin:$PATH; export PATH
ORACLE_OWNER=oracle; export ORACLE_OWNER
ORACLE_SID=OSIM; export ORACLE_SID
LD_LIBRARY_PATH=$ORACLE_HOME/lib; export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
CLASSPATH=$CLASSPATH:$ORACLE_HOME/network/jlib; export CLASSPATH
LD_ASSUME_KERNEL=2.6.9; export LD_ASSUME_KERNEL
What do you guys think my problem is?I managed to solve this one. For more information you can search the forum with much earlier dates, as far as 2002. I'm very outdated.
In case you need the solution:
I tried using java 1.3.1 provided together with the Oracle9iR2 installation Disks instead of 1.1.8.
1. Delete the JRE link in $ORACLE_HOME
2. Relink it to 1.3.1 directory
3. create a jre symbolic link in the bin directory to the .java_wrapper
4. create another jre symbolic link in the i386/nativethreads directory to the java file
Good luck -
java problem
Well my latest build of java stopped working after Tuesday's Microsoft updates. I cant believe those updates are connected as to why this java build 5 should have stop working like that as the Standard Edition, v 1.4.2_08 (J2SE)works fine
Any ideas anyone as to why this should have happened
thanks
--Sending this back to the top.. I have seen on a couple other forums where people were having this problem, but no answers yet.
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With a cache loader, the Java Object Cache automatically determines if an object needs to be loaded into the cache when the object is request.
Can someone tellme how exactly this works.
I am trying to get the cache framework to load objects automatically in the cache.
hwoever unless i explicitly use the CacheAcess.put method. the object is not loaded in the cache.
Plss lemme knw, how the framework does it automatically.
Regards,
MuktaHi Mukta,
FYI, This discussion forum is all about Web Cache, and not related to Java Object Cache.
Anyways, to hint you on automatic loading of objects -> use the CacheAccess.preLoad() method.
You can post this question in a forum related to the Java Object Cache, for better answers.
Regards,
Priyanka GES
Oracle Web Cache Team -
Please help me with two Java problems
Hello,
I have 2 Java problems to work on and wondered if someone can help please?
1. I've created an array, but I have to now create a text file and write a program to read the array from the file. I have no idea where to start the program!
2.public class SumExample1 {
/* To determine if a number lies between 1 and 1000
* @param args the command line arguments
public static void main(String[] args) {
int num;
System.out.print("Enter a number: ");
num = TextIO.getInt();
if ((num >=1) && (num<=1000))
System.out.println("OK");
else
System.out.println ("Not OK");
Ive used a GUI to create some fields and buttons to press. How can I make it perform this little program?
Many thanks,
KI recommend you read the tutorials on basic (file) IO and Swing (and Event Listeners if you want to make your GUI alive). Perhaps have a look at the Scanner class and BufferedInputStream. That should give you enough to start and write the program yourself. Try working in the command prompt first, should be easier, then once the logic works wrap it in a Swing GUI.
You can find the tutorials here:
http://download.oracle.com/javase/tutorial/
Swing:
http://download.oracle.com/javase/tutorial/uiswing/index.html
Basic IO:
http://download.oracle.com/javase/tutorial/essential/io/index.html
Hope this helps.
PR -
Getting the error " [java] Problem invoking WLST - java.lang.RuntimeException: Could not find the OffLine WLST class " while building the O2A 2.1.0 PIP. I am using the Design Studio 4.3.2 for building the O2A 2.1.0 PIP. Please let me know how to resolve this issue. Here I am enclosing the log file .
We have basically the same issue when we try to create the interpreter using the embedded method..
I was able to use the interpreter embedded in a java client as long as the weblogic jars were located in a weblogic install if I tried to use them from a maven repository no luck at all...
All of this worked easily in 9.2 now in 10.3 it seems more error prone and less documented.
I have seen close to a 100 posts on issues related to this so is there a document which outlines specifics....
We / I have used weblogic now for almost 10 years and moving from 8.1 to 9.2 was painful and we expected the move from 9.2 to 10.3 not to be soo bad but its proving to be as painful if not more painful than moving to 9.2. We seem to spend a good bit of our time working around issues in the next new release that were not in the previous one..
Any help would be appreciated I think we will open a support case but even that is more painful...
Any help would be greatly appreciated..
PS: We confirmed that all jars in the startweblogic classpath were in the startup. The server we have the embedded wlst instance is a managed server and we are using the component in a war... Are there any restrictions which we are unaware of.
Error we get is
1 [ERROR] com.tfn.autex.order.weblogic.QueueMaintenanceUtility.addQueue():217 Error Adding Queue wowsers JNDI Name wowsers Exception: Invocation Target exception while getting the WLSTOffLineScript path -
I have my Java DNS cache expiring every five minutes by setting it up in java.security. My question is - what happens when the DNS server is unreachable, ie. down ? Does Java retain what it already had in the event that it cannot reach a DNS server to update from, or does the domain that was being accessed become unavailable ?
Thank you for your response. At least now I know it isn't something that I misconfigured. It is interesting that if I add this line to obj.conf, the statistics function appears to work, even though according to the admin interface DNS caching is disabled: (I got this from the help system.)
Init cache-size="1024" expire="1200" fn="ip-dns-cache-init"
The original entry put there by the admin interface is:
Init cache-size="1024" expire="1200" negative-dns-cache="yes" fn="host-dns-cache-init"
I do not have a Sun support contract. Is there a procedure to report this bug, or have you already done that?
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