Read proxy class data
HI All ,
there is webservice which is defined on j2ee (had logical port on lpconfig and proxy class ) and we need to read it in report how i can do it ?
I am new for this topic
Regards
Chris
Edited by: Chris Teb on Oct 8, 2009 11:08 AM
Hi,
You can go to transaction SPROXY and there you can see the namespaces created for the proxies.This will be done by XI people.You need to click on the one which is created in Service Interfaces and the double click on proxy name you can see the class methods inside which you can see class code.
Subhashini
Similar Messages
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ABAP proxy class - data structure
I generated a ABAP Proxy Class and the data structure I want to use is put automatically under item structure which has 0...unbounded type.
1. How can I get rid of this item structure as it will create another unnecessary level for my mapping
2. If my source structure has only 3 level, and the target structure has more than 3 (including item), how to map it?
e.g.
Source structure: Level 1(occurrence 1) > Level 2(1)> Level 3(0..1)
Target structure: Level 1(1])--> Level 2(0...1) --> item (0..unbounded) ---> Level 4(0..1)
I need to map level 3 from my source to level 4 in target, but it didn't seem to work.
Thanks.--->1. How can I get rid of this item structure as it will create another unnecessary level for my mapping
You can delete the proxy at Application Server.....make necessary changes at XI Message Interface and again generate the proxy...
-->Source structure: Level 1(occurrence 1) > Level 2(1)> Level 3(0..1)
Target structure: Level 1(1])--> Level 2(0...1) --> item (0..unbounded) ---> Level 4(0..1)
For this you need to make use of context change features of XI Mapping.
Regards, -
Hi All,
Is there any FM or class-method to read XML proxy message for a given message id?
Scenario: An inbound interface coming from XI to ECC system using ABAP proxy method.While processing this inbound proxy it will trigger create another response outbound proxy message - where this should read inbound message and map few data back in outbound.
Question is -
How to read XML proxy message using message id? I would like to read this inbound proxy message data to map them back to outbound interface.
Hope am clear - let me know if you need further details.
Thanks
ManoharNot very clear for me, but maybe it's because I don't know XI. I don't understand because in ABAP, the term "proxy" is an image of a web service, this image is created in the system from where we want to access the web service.
You use proxy and message terms too many times, I don't see where is what, where is the inbound, where is the outbound. What is a "message id" for you? (XI notion?) -
Hi,
I am having one proxy class created by XI, which is used to pull the data from Oracle. While executing the class in the program it is not outputing the data, but for the particular input data is available in Oracle.
While monitoring the XI request we can able to find the corresponding output in the transaction SXMB_MONI , but it is not flowing in the expoting parameter of the proxy class.
Please Suggest me what can be issue?.
Regards,
Meera CActually,in the standard program the functions 'BAPI_TRANSACTION_COMMIT' and 'DB_COMMIT' have been commented during upgradation and there is a comment saying 'no commit in proxy class but from XI runtime (precondition: no errors)'.
what is the procedure for giving commit in XI runtime in asynchronou mode for a proxy interface? -
Hi,
I am having one proxy class created by XI, which is used to pull the data from Oracle. While executing the class in the program it is not outputing the data, but for the particular input data is available in Oracle.
While monitoring the XI request we can able to find the corresponding output in the transaction SXMB_MONI , but it is not flowing in the expoting parameter.
Please Suggest me.
Regards,
Meera CActually,in the standard program the functions 'BAPI_TRANSACTION_COMMIT' and 'DB_COMMIT' have been commented during upgradation and there is a comment saying 'no commit in proxy class but from XI runtime (precondition: no errors)'.
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Time Management Data Read Using Class & Methods?
Master data & Cluster data how to read using Class & Methods
Hi Ajay
To my knowledge this is caused because there are locks on registrations for these employees in R/3, probably because there using the system at the time of extraction.
To my knowledge the only way to handle this is to set "yellow" status to "green" this can be done automaticly on the InfoPackage.
I know this problem from two companies and i have not experienced any inconsistancies on data due to this proceeding.
Chris -
RMI exception calling web service from proxy class
I am getting the following error attempting to call a web service from a proxy. It appears to relate to the type of objects I am trying to send vs the type that is expected. Following the exception I am adding a copy of the control where calling the web service is sucessful, a copy of the proxy class that I am using to make this unsucessful call, and the controller.jpf that has the formBean where I am creating my objects
Caught Exception Calling the Web Service from the Proxy. The Exception is the f
ollowing: java.rmi.RemoteException: web service invoke failed: javax.xml.soap.SO
APException: failed to serialize class org.openuri.www.CreateAccountCheckingReq
uestweblogic.xml.schema.binding.SerializationException: type mapping lookup fail
ure on class=class controls.CheckingService$anyType TypeMapping=TYPEMAPPING SIZE
=5
ENTRY 1:
class: org.openuri.www.CreateAccountCheckingResponse
xsd_type: ['http://www.openuri.org/']:lcl0:CreateAccountCheckingResponse
ser: org.openuri.www.CreateAccountCheckingResponseCodec@c0f4da
deser: org.openuri.www.CreateAccountCheckingResponseCodec@b1dd4
ENTRY 2:
class: org.openuri.www.FundingInfoAnonType
xsd_type: ['http://www.openuri.org/']:lcl0:FundingInfoAnonType
ser: org.openuri.www.FundingInfoAnonTypeCodec@1d36711
deser: org.openuri.www.FundingInfoAnonTypeCodec@13a59e
ENTRY 3:
class: org.openuri.www.AccountInfoAnonType
xsd_type: ['http://www.openuri.org/']:lcl0:AccountInfoAnonType
ser: org.openuri.www.AccountInfoAnonTypeCodec@1de5959
deser: org.openuri.www.AccountInfoAnonTypeCodec@bbf788
ENTRY 4:
class: org.openuri.www.CustomerInfoAnonType
xsd_type: ['http://www.openuri.org/']:lcl0:CustomerInfoAnonType
ser: org.openuri.www.CustomerInfoAnonTypeCodec@7824f9
deser: org.openuri.www.CustomerInfoAnonTypeCodec@1c35fe1
ENTRY 5:
class: org.openuri.www.CreateAccountCheckingRequest
xsd_type: ['http://www.openuri.org/']:lcl0:CreateAccountCheckingRequest
ser: org.openuri.www.CreateAccountCheckingRequestCodec@1cbcd7b
deser: org.openuri.www.CreateAccountCheckingRequestCodec@11f60ce
; nested exception is:
javax.xml.soap.SOAPException: failed to serialize class org.openuri.www
.CreateAccountCheckingRequestweblogic.xml.schema.binding.SerializationException:
type mapping lookup failure on class=class controls.CheckingService$anyType Typ
eMapping=TYPEMAPPING SIZE=5
ENTRY 1:
class: org.openuri.www.CreateAccountCheckingResponse
xsd_type: ['http://www.openuri.org/']:lcl0:CreateAccountCheckingResponse
ser: org.openuri.www.CreateAccountCheckingResponseCodec@c0f4da
deser: org.openuri.www.CreateAccountCheckingResponseCodec@b1dd4
ENTRY 2:
class: org.openuri.www.FundingInfoAnonType
xsd_type: ['http://www.openuri.org/']:lcl0:FundingInfoAnonType
ser: org.openuri.www.FundingInfoAnonTypeCodec@1d36711
deser: org.openuri.www.FundingInfoAnonTypeCodec@13a59e
ENTRY 3:
class: org.openuri.www.AccountInfoAnonType
xsd_type: ['http://www.openuri.org/']:lcl0:AccountInfoAnonType
ser: org.openuri.www.AccountInfoAnonTypeCodec@1de5959
deser: org.openuri.www.AccountInfoAnonTypeCodec@bbf788
ENTRY 4:
class: org.openuri.www.CustomerInfoAnonType
xsd_type: ['http://www.openuri.org/']:lcl0:CustomerInfoAnonType
ser: org.openuri.www.CustomerInfoAnonTypeCodec@7824f9
deser: org.openuri.www.CustomerInfoAnonTypeCodec@1c35fe1
ENTRY 5:
class: org.openuri.www.CreateAccountCheckingRequest
xsd_type: ['http://www.openuri.org/']:lcl0:CreateAccountCheckingRequest
ser: org.openuri.www.CreateAccountCheckingRequestCodec@1cbcd7b
deser: org.openuri.www.CreateAccountCheckingRequestCodec@11f60ce
Java Control for the web service:
package controls;
import weblogic.webservice.context.WebServiceContext;
* @jc:location http-url="http://localhost:7001/Checking.jws"
* @jc:wsdl file="#CheckingWsdl"
* @jc:handler callback="MessageHandler" operation="MessageHandler"
public interface CheckingService extends com.bea.control.ControlExtension, com.bea.control.ServiceControl
public static class CustomerInfo
implements java.io.Serializable
public java.lang.String FirstName;
public java.lang.String LastName;
public java.lang.String MiddleName;
public int SSN;
public int CustomerNumber;
public java.util.Calendar CreationDate;
public java.util.Calendar LastModifiedDate;
public static class FundingInfo
implements java.io.Serializable
public float Amount;
public java.util.Calendar CurrentDate;
public int AccountNumber;
public static class anyType
implements java.io.Serializable
public com.bea.xml.XmlObject[] t;
public static class AccountInfo
implements java.io.Serializable
public int AccountNumber;
public float Balance;
public int CustomerNumber;
public java.util.Calendar LastModifiedDate;
public WebServiceContext context = CheckingService.context;
* @jc:protocol form-post="false" form-get="false"
public AccountInfo CreateAccountChecking (CustomerInfo CustomerInfo, FundingInfo FundingInfo, anyType CommonHeader);
static final long serialVersionUID = 1L;
/** @common:define name="CheckingWsdl" value::
<?xml version="1.0" encoding="utf-8"?>
<!-- @editor-info:link autogen="false" source="" -->
<definitions xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:conv="http://www.openuri.org/2002/04/soap/conversation/" xmlns:cw="http://www.openuri.org/2002/04/wsdl/conversation/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:jms="http://www.openuri.org/2002/04/wsdl/jms/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:s0="http://www.openuri.org/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" targetNamespace="http://www.openuri.org/">
<types>
<s:schema targetNamespace="http://www.openuri.org/" xmlns:s="http://www.w3.org/2001/XMLSchema">
<s:element name="CreateAccountCheckingRequest">
<s:complexType>
<s:sequence>
<s:element name="CustomerInfo">
<s:complexType>
<s:sequence>
<s:element name="FirstName" type="s:string" nillable="false"/>
<s:element name="LastName" type="s:string" nillable="false"/>
<s:element name="MiddleName" type="s:string" nillable="true"/>
<s:element name="SSN" type="s:int"/>
<s:element name="CustomerNumber" type="s:int"/>
<s:element name="CreationDate" type="s:dateTime"/>
<s:element name="LastModifiedDate" type="s:dateTime"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="FundingInfo">
<s:complexType>
<s:sequence>
<s:element name="Amount" type="s:float"/>
<s:element name="CurrentDate" type="s:dateTime"/>
<s:element name="AccountNumber" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="CommonHeader" type="s:anyType"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="CreateAccountCheckingResponse">
<s:complexType>
<s:sequence>
<s:element name="AccountInfo">
<s:complexType>
<s:sequence>
<s:element name="AccountNumber" type="s:int"/>
<s:element name="Balance" type="s:float"/>
<s:element name="CustomerNumber" type="s:int"/>
<s:element name="LastModifiedDate" type="s:dateTime"/>
</s:sequence>
</s:complexType>
</s:element>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="string" nillable="true" type="s:string"/>
</s:schema>
</types>
<message name="CreateAccountCheckingSoapIn">
<part name="parameters" element="s0:CreateAccountCheckingRequest"/>
</message>
<message name="CreateAccountCheckingSoapOut">
<part name="parameters" element="s0:CreateAccountCheckingResponse"/>
</message>
<portType name="CheckingSoap">
<operation name="CreateAccountChecking">
<input message="s0:CreateAccountCheckingSoapIn"/>
<output message="s0:CreateAccountCheckingSoapOut"/>
</operation>
</portType>
<binding name="CheckingSoap" type="s0:CheckingSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
<operation name="CreateAccountChecking">
<soap:operation soapAction="http://www.openuri.org/CreateAccountChecking" style="document"/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
<service name="Checking">
<port name="CheckingSoap" binding="s0:CheckingSoap">
<soap:address location="http://localhost:7001/Checking.jws"/>
</port>
</service>
</definitions>
FOLLOWING IS THE PROXY CLASS THAT IS UNSUCCESSFUL
import controls.CheckingService.anyType;
import java.util.ArrayList;
import java.util.List;
import javax.xml.namespace.QName;
import javax.xml.rpc.handler.HandlerInfo;
import javax.xml.rpc.handler.HandlerRegistry;
import org.openuri.CreateAccountCheckingResponseDocument.CreateAccountCheckingResponse;
import org.openuri.www.CustomerInfoAnonType;
import org.openuri.www.FundingInfoAnonType;
import weblogic.jws.proxies.*;
import weblogic.webservice.context.WebServiceContext;
import weblogic.webservice.context.WebServiceSession;
import weblogic.webservice.core.handler.WSSEClientHandler;
import weblogic.webservice.tools.pagegen.result;
import weblogic.xml.security.UserInfo;
import weblogic.xml.security.wsse.Security;
import weblogic.xml.security.wsse.SecurityElementFactory;
//import weblogic.jws.proxies.WebServiceB;
//import weblogic.jws.proxies.WebServiceB_Impl;
//import weblogic.jws.proxies.WebServiceBSoap;
public class CheckingWSProxy
public static void CallWS(Controller.CreateAccountCheckingForm form)
String user;
String pass;
try{
* Instantiate the main proxy class. The proxy class has the same name as the
* web service, with "_Impl" appended.
Checking myservice = new Checking_Impl("http://localhost:7001/ConsumerAccountApp/schemas/CheckingService.wsdl");
WebServiceContext context = myservice.context();
WebServiceSession session = context.getSession();
* Registers a handler for the SOAP message traffic.
HandlerRegistry registry = myservice.getHandlerRegistry();
List list = new ArrayList();
list.add(new HandlerInfo(WSSEClientHandler.class, null, null));
registry.setHandlerChain(new QName("Checking"), list);
* Set the username and password token for SOAP message sent from the client, through
* the proxy, to the web service.
user = form.getUsername();
pass = form.getPassword();
UserInfo ui = new UserInfo(user, pass);
session.setAttribute(WSSEClientHandler.REQUEST_USERINFO, ui);
* Adds the username / password token to the SOAP header.
SecurityElementFactory factory = SecurityElementFactory.getDefaultFactory();
Security security = factory.createSecurity(null);
security.addToken(ui);
session.setAttribute(WSSEClientHandler.REQUEST_SECURITY, security);
* Get the protocol-specific proxy class.
CheckingSoap msg=myservice.getCheckingSoap();
* Invoke the web service method
msg.createAccountChecking((CustomerInfoAnonType)form.getProxyCustomerInfo(), (FundingInfoAnonType)form.getProxyFundingInfo(), (Object)form.get_CommonHeader());
catch (Exception ex)
System.out.println("Caught Exception Calling the Web Service from the Proxy. The Exception is the following: " + ex.toString());
FOLLOWING IS THE FORMBEAN IN THE CONTROLLER.JPF FILE
* FormData get and set methods may be overwritten by the Form Bean editor.
public static class CreateAccountCheckingForm extends FormData
private anyType _CommonHeader;
private controls.CheckingService.FundingInfo _FundingInfo;
private controls.CheckingService.CustomerInfo _CustomerInfo;
private java.util.Date dOut;
private java.util.Calendar cOut;
private CustomerInfo proxyCustomerInfo;
private FundingInfo proxyFundingInfo;
private String stringDate;
private String currentDate;
private String lastModifiedDate;
private String creationDate;
private String systemMessage;
private String username;
private String password;
private String accountType;
private String trashTransferAccount;
private String trashAccountNumber;
private boolean secureFlag;
public void set_CustomerInfo(controls.CheckingService.CustomerInfo _CustomerInfo)
_CustomerInfo.CreationDate = parseDate(getCreationDate());
_CustomerInfo.LastModifiedDate = parseDate(getLastModifiedDate());
this._CustomerInfo = _CustomerInfo;
public controls.CheckingService.CustomerInfo get_CustomerInfo()
if(this._CustomerInfo == null)
this._CustomerInfo = new controls.CheckingService.CustomerInfo();
_CustomerInfo.CreationDate = dateNow();
_CustomerInfo.LastModifiedDate = dateNow();
return this._CustomerInfo;
public CustomerInfo getProxyCustomerInfo()
this.proxyCustomerInfo = (CustomerInfo)this._CustomerInfo;
return this.proxyCustomerInfo;
public void set_FundingInfo(controls.CheckingService.FundingInfo _FundingInfo)
_FundingInfo.CurrentDate = parseDate(getCurrentDate());
this._FundingInfo = _FundingInfo;
public controls.CheckingService.FundingInfo get_FundingInfo()
if(this._FundingInfo == null)
this._FundingInfo = new controls.CheckingService.FundingInfo();
_FundingInfo.CurrentDate = dateNow();
return this._FundingInfo;
public FundingInfo getProxyFundingInfo()
this.proxyFundingInfo = (FundingInfo)this._FundingInfo;
return this.proxyFundingInfo;
public void set_CommonHeader(anyType _CommonHeader)
this._CommonHeader = _CommonHeader;
public anyType get_CommonHeader()
if(this._CommonHeader == null)
this._CommonHeader = new anyType();
return this._CommonHeader;
public java.util.Calendar dateNow()
this.dOut = new Date();
Calendar cOut = this.cOut.getInstance();
cOut.setTime(this.dOut);
this.cOut = cOut;
return this.cOut;
public java.util.Calendar parseDate( String strDate )
SimpleDateFormat df4 = new SimpleDateFormat( "MM/dd/yyyy" );
Calendar cOut = this.cOut;
df4.setLenient( false );
try
this.dOut = df4.parse( strDate );
} catch ( ParseException e )
cOut.getInstance();
cOut.setTime(dOut);
this.cOut = cOut;
return this.cOut;
public void setStringDate( String stringDate )
this.stringDate = stringDate;
public String getStringDate()
return this.stringDate;
public void setCurrentDate( String currentDate )
this.currentDate = currentDate;
public String getCurrentDate()
SimpleDateFormat df4 = new SimpleDateFormat( "MM/dd/yyyy" );
this.currentDate = df4.format(_FundingInfo.CurrentDate.getTime());
return this.currentDate;
public void setLastModifiedDate( String lastModifiedDate )
this.lastModifiedDate = lastModifiedDate;
public String getLastModifiedDate()
SimpleDateFormat df4 = new SimpleDateFormat( "MM/dd/yyyy" );
this.lastModifiedDate = df4.format(_CustomerInfo.LastModifiedDate.getTime());
return this.lastModifiedDate;
public void setCreationDate( String creationDate )
this.creationDate = creationDate;
public String getCreationDate()
SimpleDateFormat df4 = new SimpleDateFormat( "MM/dd/yyyy" );
this.creationDate = df4.format(_CustomerInfo.CreationDate.getTime());
return this.creationDate;
public void setUsername( String username )
this.username = username;
public String getUsername()
return this.username;
public void setPassword( String password )
this.password = password;
public String getPassword()
return this.password;
public void setAccountType( String accountType )
this.accountType = accountType;
public String getAccountType()
return this.accountType;
public void setTrashTransferAccount( String trashTransferAccount )
this.trashTransferAccount = trashTransferAccount;
public String getTrashTransferAccount()
return this.trashTransferAccount;
public void setTrashAccountNumber( String trashAccountNumber )
this.trashAccountNumber = trashAccountNumber;
public String getTrashAccountNumber()
return this.trashAccountNumber;
public void setSystemMessage( String systemMessage )
this.systemMessage = systemMessage;
public String getSystemMessage()
return this.systemMessage;
public void setSecureFlag( boolean secureFlag )
this.secureFlag = secureFlag;
public boolean getSecureFlag()
return this.secureFlag;
}This exception means that xml namespaces are different.
Etc. soap has xml element which doesn't belong to namespace of parent xml element and namespace is set without prefix.
I had such problem.
Try to set namespace prefix for this element.
Example:
<el1>
<el2 xmlns="http://..."/>
</el1>
Should be
<el1>
<q:el2 xmlns:q="http://..."/>
</el1> -
How to use CL_PROXY_BASIS instead of CL_PROXY_CLIENT your ABAP Proxy class?
Hello experts,
I have a scenario where a new basis release was done in my development and testing SAP boxes (Basis Release 710 I believe) which means from then on when generating an ABAP Proxy class the inheriting class will be used is CL_PROXY_CLIENT as opposed to the previous CL_PROXY_BASIS.
This causes a problem though because the target date for the project, which uses this ABAP proxy, is supposed to be in the production system before the date when the basis release will be done in the production system. Obviously this will cause delays in my project since if I were to move my objects to production before the basis release a dump/syntax error will occur in production because the class CL_PROXY_CLIENT is not expected be production yet.
The next plan is to try to use CL_PROXY_BASIS instead of CL_PROXY_CLIENT, by editing my ABAP Proxy Class be force. My question is, what steps do I need to take so that I can change these classes so CL_PROXY_BASIS will be referenced/used instead of CL_PROXY_CLIENT ?
I hope to hear from all of you soon.
Regards>
Rich Heilman wrote:
> Bad idea. Your dev and prod boxes should be at the same basis level at all times.
>
Which release and SP level are you still on? -
Soapfaultcode:1 Error when consuming webservice through abap proxy class
Hi All,
I am facing a issue executing a proxy class created by consuming web service.
I have consumed a web service which queries data from oracle server to process them in SAP.We have created a Proxy class and did the following configurations:
1) Created a logical port using SOAMANAGER
2) In SICF t-code we have selected No proxy setting for local server.
But when we execute the proxy class it gives an error as "SoapFaultCode:1'.
Regards,
Madhu.Hi Madhu,
Please tel us how u have solved it. I am also facing this problem.
I am trying to understand this problem description 'SOAP ACTION name by definition of the logical port.' via the thread Re: Get error "SoapFaultCode:1"Consume web service in ABAP proxy - But couldn't able to understand how to do this.
Thank You,
Regards,
Naresh. -
Hi,
i have abap proxy class and i want to find the wsdl of it ?
How can i find it?
BR
Michael>
Michael A wrote:
> HI Matt,
>
> When developer create proxy class he has to enter WSDL,
> I think that this data have to persist somewhare.
>
> Best regards
> Michael
Indeed, that's what I thought. But I couldn't find it anywhere. When I configure the logical port in SOAMANAGER, I had to resupply the WSDL. -
Proxy class name should be same in all env. Correct ?
Hi Friends,
We have ECC development, quality and production system. We already did the proxy settings in ECC dev and it is connected to PI. It is fine.
In SPROXY, we created class for our outbound interface in ECC dev system. While the class is created we saved this in package (to be transported to ECC quality).
We will do SPROXY config in ECC quality system to connect to PI.
PI system is same for both development ECC and quality ECC.
Now, my doubt is, 1) do we need to create again class through SPROXY in ECC qulaity for the same OB interface ?
2) If it is 'yes', is it required to transport the class to from ECC dev to ECC quality ?
My understanding is a) we need to create class in quality ecc (SPROXY). b) The class name should be same as in ecc dev 3) It need not required to transport the class from ecc DEV to quality since we did not do anything for the class.
Can you kindly clarify friends.
Kind regards,
Jegathees P.I do not get your points.
> I agreed your point. My query is once the proxy class transported into QUALITY, how the call/execution will happen ?
The same way as in dev.
> It means how it understands it needs send data to XI system when this class is called through Z abap program in Quality.
Yes.
> How this is differentiated from normal class call & proxy class call?
There is no difference. You call the proxy class the same way as any other class that you create with SE24.
The only difference is, that this class is generated.
So the whole transport mechanism applies for the ABAP proxy as well.
In our system I put ABAP proxy and calling program in same package and transport them together. But this is up to you. -
Problem with ArrayLists and writing and reading from a .dat file (I think)
I'm brand new to this forum, but I'm sure hoping someone can help me with a problem I'm having with ArrayLists. This program was originally created with an array of objects that were displayed on a GUI with jtextFields, then cycling thru them via jButtons: First, Next, Previous, Last. Now I need to add the ability to modify, delete and add records. Both iterations of this program needed to write to and read from a .dat file.
It worked just like it was suppose to when I used just the array, but now I need to use a "dynamic array" that will grow or shrink as needed: i.e. an ArrayList.
When I aded the ArrayList I had the ArrayList use toArray() to fill my original array so I could continue to use all the methods I'd created for using with my array. Now I'm getting a nullPointerException every time I try to run my program, which means somewhere I'm NOT filling my array ???? But, I'm writing just fine to my .dat file, which is confusing me to no end!
It's a long program, and I apologize for the length, but here it is. There are also 2 class files, a parent and 1 child below Inventory6. This was written in NetBeans IDE 5.5.1.
Thank you in advance for any help anyone can give me!
LabyBC
package my.Inventory6;
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;
// Class Inventory6
public class Inventory6 extends javax.swing.JFrame {
private static InventoryPlusColor[] inventory;
private static ArrayList inList;
// create a tool that insure the specified format for a double number, when displayed
private DecimalFormat doubleFormat = new DecimalFormat( "0.00" );
private DecimalFormat singleFormat = new DecimalFormat( "0");
// the index within the array of products of the current displayed product
private int currentProductIndex;
/** Creates new form Inventory6 */
public Inventory6() {
initComponents();
currentProductIndex = 0;
} // end Inventory6()
private static InventoryPlusColor[] getInventory() {
ArrayList<InventoryPlusColor> inList = new ArrayList<InventoryPlusColor>();
inList.add(new InventoryPlusColor(1, "Couch", 3, 1250.00, "Blue"));
inList.add(new InventoryPlusColor(2, "Recliner", 10, 525.00, "Green"));
inList.add(new InventoryPlusColor(3, "Chair", 6, 125.00, "Mahogany"));
inList.add(new InventoryPlusColor(4, "Pedestal Table", 2, 4598.00, "Oak"));
inList.add(new InventoryPlusColor(5, "Sleeper Sofa", 4, 850.00, "Yellow"));
inList.add(new InventoryPlusColor(6, "Rocking Chair", 2, 459.00, "Tweed"));
inList.add(new InventoryPlusColor(7, "Couch", 4, 990.00, "Red"));
inList.add(new InventoryPlusColor(8, "Chair", 12, 54.00, "Pine"));
inList.add(new InventoryPlusColor(9, "Ottoman", 3, 110.00, "Black"));
inList.add(new InventoryPlusColor(10, "Chest of Drawers", 5, 598.00, "White"));
for (int j = 0; j < inList.size(); j++)
System.out.println(inList);
InventoryPlusColor[] inventory = (InventoryPlusColor[]) inList.toArray
(new InventoryPlusColor[inList.size()]);
return inventory;
} // end getInventory() method
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
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();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createEtchedBorder(), "Inventory Program"));
IDNumberLbl.setText("ID Number");
IDNumberField.setEditable(false);
prodNameLbl.setText("Product Name");
prodNameField.setEditable(false);
colorLbl.setText("Product Color");
colorField.setEditable(false);
colorField.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
colorFieldActionPerformed(evt);
unitsInStockLbl.setText("Units In Stock");
unitsInStockField.setEditable(false);
unitPriceLbl.setText("Unit Price $");
unitPriceField.setEditable(false);
invenValueLbl.setText("Inventory Value $");
invenValueField.setEditable(false);
restockingFeeLbl.setText("5% Restocking Fee $");
restockingFeeField.setEditable(false);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(unitPriceLbl)
.addComponent(unitsInStockLbl)
.addComponent(colorLbl)
.addComponent(prodNameLbl)
.addComponent(IDNumberLbl)
.addComponent(restockingFeeLbl)
.addComponent(invenValueLbl))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(IDNumberField, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE)
.addComponent(prodNameField, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE)
.addComponent(colorField, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE)
.addComponent(unitsInStockField, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE)
.addComponent(unitPriceField, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE)
.addComponent(restockingFeeField, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE)
.addComponent(invenValueField, javax.swing.GroupLayout.DEFAULT_SIZE, 176, Short.MAX_VALUE))
.addContainerGap())
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(IDNumberLbl)
.addComponent(IDNumberField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(prodNameLbl)
.addComponent(prodNameField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(colorField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(colorLbl))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(unitsInStockField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(unitsInStockLbl))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(unitPriceField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(unitPriceLbl))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(restockingFeeField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(restockingFeeLbl))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 10, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(invenValueField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(invenValueLbl))
.addContainerGap())
jbtFirst.setText("First");
jbtFirst.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtFirstActionPerformed(evt);
jbtNext.setText("Next");
jbtNext.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtNextActionPerformed(evt);
jbtPrevious.setText("Previous");
jbtPrevious.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtPreviousActionPerformed(evt);
jbtLast.setText("Last");
jbtLast.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtLastActionPerformed(evt);
jbtAdd.setText("Add");
jbtAdd.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtAddActionPerformed(evt);
jbtDelete.setText("Delete");
jbtModify.setText("Modify");
jbtModify.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtModifyActionPerformed(evt);
jbtSave.setText("Save");
jbtSave.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtSaveActionPerformed(evt);
jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createEtchedBorder(), "Search by:"));
searchIDNumLbl.setText("Item Number:");
jbtSearch.setText("Search");
searchResults.setFont(new java.awt.Font("Tahoma", 1, 12));
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addComponent(searchIDNumLbl)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(259, 259, 259)
.addComponent(searchResults, javax.swing.GroupLayout.PREFERRED_SIZE, 213, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jbtSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 83, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(searchIDNumbField, javax.swing.GroupLayout.PREFERRED_SIZE, 143, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(searchIDNumLbl)
.addComponent(searchIDNumbField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(32, 32, 32)
.addComponent(searchResults, javax.swing.GroupLayout.PREFERRED_SIZE, 17, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jbtSearch)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
jbtExit.setText("Save and Exit");
jbtExit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtExitActionPerformed(evt);
jbtExitwoSave.setText("Exit");
jbtExitwoSave.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jbtExitwoSaveActionPerformed(evt);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 248, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 44, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(jbtExitwoSave, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jbtExit)))
.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 pricBalusC -- 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. -
How to create proxy class for a Siebel WS which has many Workflows in it?
Hi,
I am facing a strange problem. I have a Web Service for which there are many workflows associated with this. When I generate WSDL for this Web Service and later on generate proxy class in .NET, it creates mutilple classes for each workflow. From UI, I can invoke a perticular method for the class for which I am interested in. But when I am building the same in JDeveloper, using Web Service proxy, I get only one class and I am not interested in invoking method in this class but interested in some other class for which the proxy was not generated. Is there some way to generate multiple classes in JDeveloper proxy?
Thanks,
Sudha.I have figured this out. Actually Generate proxy creates package and it includes all the class in it. Now i am able to invoke web service method call.
-
ITunes 10.5.3, Unable to Load Class Data from Sync Services, Crashes Repeatedly
Ever since iTunes 10.5.3 on my Windows 7 x64 box, I've been having serious problems keeping iTunes running:
1) Any time I connect my iPhone or iPad, or any time they attempt to sync over WiFi, I get the 'Unable to load class data from sync services' error. It's worth mention that the iPhone or iPad do actually then proceed to sync correctly, and all media / data is synchronized successfully, as far as I've been able to tell. I've reset sync history, restored the iPhone and iPad, manually moved the SyncServices directory, set both the iPhone and iPad up as new, completely uninstalled iTunes and the mobile device software, re-installed, and *nothing* I do fixes this issue or even seems to impact it. Uninstalling iTunes 10.5.3 and reinstalling iTunes 10.5.2 resolves this error.
2) iTunes 10.5.3 has serious crashing problems on my machine, though I've searched through forums and found a lot of other people with the problem. In my case, sporadically as iTunes access the iTunes store (for example, I can always make it happen by subscribing to the Diggnation podcast and telling it to refresh the podcast), I get a full application crash which generates the following event in the event log:
Faulting application name: iTunes.exe, version: 10.5.3.3, time stamp: 0x4f14cc3d
Faulting module name: KERNELBASE.dll, version: 6.1.7601.17651, time stamp: 0x4e211319
Exception code: 0x80000003
Fault offset: 0x0001280c
Faulting process id: 0x564
Faulting application start time: 0x01cce78789dc009a
Faulting application path: D:\Program Files (x86)\iTunes\iTunes.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: ecc77400-537a-11e1-b809-00248c196007
Again, uninstalling iTunes 10.5.3 and re-installing iTunes 10.5.2 fixes this issue as well, but I really shouldn't have to do that. Is there any actual solution to these problems other than dowgrading to an older version?
Yes, I'm running current malware protection (and my system is clean) and yes, I've already checked any other obvious culprits to make sure I don't just have a corrupt library or file somewhere that's causing it. My Windows 7 install is completely up to date from a Windows Update perspective and also from a driver perspective (even including the motherboard and chipset drivers). I made sure to do a system file integrity check (sfc /scannow) and it confirmed my install of Windows isn't suspect, but beyond all that I was able to reproduce these failures on a completely separate machine running Windows 7 x64, without any of my media library or data on it -- iTunes 10.5.3 just seems to be bad news on Windows 7 x64 for me, even though I know there are definitely people are using it successfully. I don't get any other application crashes for any other applications, and I've never had an issue like this with any previous version of iTunes...
Last but not least, in case it matters, I'm running iOS 5.0.1 on both the iPhone4 and the iPad2. The iPhone4 is the GSM AT&T model and the iPad2 is the CDMA Verizon model.OK, I've given up. Uninstalled iTunes 10.5.3 permanently. It's a shame, 10.5.2 works perfectly but 10.5.3 is a complete and total cluster for me.
Anyone with the same problems who hasn't done this already, just uninstall iTunes and the Apple Mobile Device Service in your Add/Remove Programs, then re-install iTunes 10.5.2. You won't lose your library or any settings or apps, it will just go back to working again.
I wish Apple would acknowledge this so that I'd at least know it would be fixed in the future. -
The proxy class that i am using currently not detecting (and not using ) my proxy .server
I am using Naviscope proxy server on port 81 .
Following is my code snippet:
psvm (String a[] ){
try {
Proxy proxy = new Proxy(Proxy.Type.SOCKS,
new InetSocketAddress("127.0.0.1", 81 )
Socket socket = new Socket(proxy);
System.out.println("Connecting...");
socket.connect(new InetSocketAddress("http://google.com", 81);
if (socket.isConnected() )
System.out.println("Connectoed");
else
System.out.println("Not connected");
socket.close() ;
catch(Exception ioe){
ioe.printStackTrace();
The error is InvalidArgumentType when proxy type is other than Socks ...
There is no error on setting as Socks server type , but no activity in my Server.
Morever my proxy server is a Http one .. and works well with Firefox , IE ,Opera !!!
Can someone help me out.. pls
Thx in advance ...The compiler I'm using is showing errors in these areas of the code. I've read the tutorials and still can't get it. They syntax for the scanner must be in the wrong format??
the input.readLine appears incorrect below.
public void actionPerformed(ActionEvent evt) {
System.out.print("Talk to me " +name+ " : ");
try {
jLabel1.setText(input.readLine());
} catch (IOException ioe) {
jLabel1.setText("Ow! You pushed my button");
System.err.println("IO Error: " + ioe);
}and also here...
the input is showing errors
/** Initialise and Scan input Stream */
private void selectInput() {
input = new Scanner(new InputStreamReader(System.in));
/**int i = sc.nextInt(); */
}Thanks
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