Object array input

Hello, I am trying to input a file that contains an array of object refrences. When doing so I set the array to receive the input array to a larger size than the array being input. Once the array is input however, it resizes the created array to the size of the input array. For instance, I create an array size 10. Input and array size 5. The length of the created array will now be 5. I caught it by using this check:
System.out.println(shapes.length);
shapes = (MyShape[]) objectIn.readObject();
System.out.println(shapes.length);
Any help would be appreciated.
Thanks,
Matt

Hello, I am trying to input a file that contains an
array of object refrences. When doing so I set the
array to receive the input array to a larger size
than the array being input.How do you know it's larger than what's being input? It might be better to use (for example) a Vector so that the array grows automatically as you add items.
Once the array is input
however, it resizes the created array to the size of
the input array. For instance, I create an array
size 10. Input and array size 5. The length of the
created array will now be 5. I caught it by using
this check:
System.out.println(shapes.length);
shapes = (MyShape[]) objectIn.readObject();
System.out.println(shapes.length);It's a bit unclear what your problem is... can you post more code and/or errors?

Similar Messages

Create Object Array

I am trying to do a simple task that I thought would be very easy and quick to do but I have run into problems
I am trying to get the user to input a number and based on that number make a text field to become visible based on it. So if the user input 3 the first 3 textfields would become visible. I have 10 textfields and I don't need any error handling yet as I can do that later but this is my code:
var x=NumericField1.rawValue;
for(var i=0; i<=x; i++)
TextField1[i].presence="visible";
I think my problem is creating the object array as all I did was double clicked in the library to create the textfields and the names come up as TextField1 then in the grey shaded area right beside it is the number 0. The next one is called TextField1 with 1 greyed out beside it.
Can anyone help me out?
Thanks

SO IF YOU TRY IN JAVASCRIPT THIS WON'T WORK SO DO THIS IN "FORMCALC"
i=NUMIRICFIELD.RAWVALUE;
TextField1[i].presence="visible";
PLEASE DO THIS IN FORMCALC &FEEDBACK ME
[email protected]

Can u have a spry data set Object array.....

Ok this is what i need to do. I need a spry object array to
be created with in a function.
Just like this.....
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml"
xmlns:spry="
http://ns.adobe.com/spry">
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=iso-8859-1" />
<title>Hijax Demo - Notes 1</title>
<script language="JavaScript" type="text/javascript"
src="includes/xpath.js"></script>
<script language="JavaScript" type="text/javascript"
src="includes/SpryData.js"></script>
<script language="JavaScript" type="text/javascript">
* @author nadeerak
function test5(){
funObjects = new Array();
funObjectsObserver = new Array();
funListList = new Array();
x = new Array();
x[0] = "First";
x[1] = "Second";
x[2] = "Third";
x[3] = "Fourth";
for(y in x)
funObjects[x[y]] = new
Spry.Data.XMLDataSet("notes"+y+".xml", "notes/note");
funObjectsObserver[x[y]] = new Object;
funListList[x[y]] = null;
funObjects[x[y]].useCache = false;
funObjects[x[y]].loadData();
funObjectsObserver[x[y]].onDataChanged = function(dataSet,
data)
funListList[x[y]]=funObjects[x[y]].getData();
alert(funListList[x[y]].length);
funObjectsObserver[x[y]].onPreLoad = function(dataSet, data)
alert("preload");
funObjectsObserver[x[y]].onPostLoad = function(dataSet,
data)
funObjects[x[y]].addObserver(funObjectsObserver[x[y]]);
</script>
</head>
<body>
<input type="button" value="button" name="button"
onclick="test5();">
</body>
</html>
i have note0.xml to note6.xml
once the button clicked i need all the alerts to give the
length. But this dyanimically created objects does not load. Why?
Can we do something like this in SPY? like creating a spry
object array........... can we?
The error im getting is after two alerts i get
"funListList[]. is null or not an object " individually it works
very well?
why is this?
To my knowladge the data is not loaded after the second....
Hmmmm how come? im using seperate objects....
PLS ALL SPRY LOVERS help me......

Hi,
Check this sample:
http://labs.adobe.com/technologies/spry/samples/DataSetSample.html
Check the source code to see how we build a data set from an
array.
Hope this helps,
Donald Booth
Adobe Spry Team

Saving An Object Array to a File

Please Help,
I am fairly new to Java. I am trying to write a program that inputs merchandise information (ItemName, Description, Price, etc�) to an object array. The program works internally with the array perfectly, but I can�t get it to save the array to a file so it can be read and reused the next time the program is run. The class the array is built on implements Serializable, but when it tries to save it to a file, it throws an exception message saying that my object is not serializable.
Does anyone have some code to help me save information to an array (so it can be used within the program), save the array to a disk file, and read the file back into the program the next time the program opens?
Thank you,
Bob

Thank you for your help. The total code is quite lengthy so I�ve tried to pick the most relevant code to include here.
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.text.*;
import java.io.*;
public class Class1 extends WindowAdapter implements ActionListener
// Object Array Declaration.
ItemInfo ItemArray[] = new ItemInfo[100];
* This is the Inner Class that the Array is built on. I have two constructors in it because I
* tried several different methods to make this write to the disk file
public class ItemInfo implements Serializable
     int ItemNum;
     int DeptNum;
     String ItemName;
     String Model;
     String Description;
     float Price;
     int Units;
// Constructors
     public ItemInfo() {};
     public ItemInfo(int inItemNum, int inDeptNum, String
                         inItemName, String inModel, String
                         inDescription, float inPrice, int inUnits)
          ItemNum = inItemNum;
          DeptNum = inDeptNum;
          ItemName = inItemName;
          Model = inModel;
          Description = inDescription;
          Price = inPrice;
          Units = inUnits;
} // end class ItemInfo.
* openOutputStream() *
     private void openOutputStream()
          try
          // create file and output object streams
               outputItemFile = new FileOutputStream("A:ItemFile.txt");
               objSaveItems = new ObjectOutputStream(outputItemFile);
          } // end try
          catch (Exception error)
               System.err.println("Error opening file");
          } // end catch
     } // end openOutputStream().
* closeOutputStream() *
     private void closeOutputStream()
          try
               objSaveItems.close();
               outputItemFile.close();
          catch (IOException error)
               System.err.println("Error Closing File");
          } // end catch
     } // end closeOutputStream().
* AddToItemArray() - This method just assigns the information to the Array elements *
     private void AddToItemArray()
          int ArrayNum = intItemFileSize - 1;
          ItemArray[ArrayNum] = new ItemInfo();
          ItemArray[ArrayNum].ItemNum = intNewItemNum;
          ItemArray[ArrayNum].DeptNum = intDeptNum;
          ItemArray[ArrayNum].ItemName = strItemName;
          ItemArray[ArrayNum].Model = strModel;
          ItemArray[ArrayNum].Description = strDescription;
          ItemArray[ArrayNum].Price = fltPrice;
          ItemArray[ArrayNum].Units = intUnits;
     } // end AddToItemArray().
* WriteToFile() - This is the latest effort to write to the file. The file gets opened, and
* the first element gets printed, but after that nothing but error messages (printed * below).
     private void WriteToFile()
          try
               openOutputStream();
               for (int a = 0; a <= intItemFileSize; a++)
                    objSaveItems.writeObject(ItemArray[a]);
                    objSaveItems.flush();
               closeOutputStream();
          } // end try.
          catch (Exception error)
               System.err.println("Error writing to file");
     } // end WriteToFile().
This is what appears on the disk file after I run the program (three items entered):
� sr Class1$ItemInfo�&q��B I DeptNumI ItemNumF PriceI UnitsL
Descriptiont Ljava/lang/String;L ItemNamet Ljava/lang/String;L Modelt Ljava/lang/String;L this$0t LClass1;xp A�� t
Claw Hammert Hammert CL550{sr java.io.NotSerializableException(Vx �� 5   xr java.io.ObjectStreamExceptiond��k�9��   xr java.io.IOExceptionl�sde%��   xr java.lang.Exception��> ; �   xr java.lang.Throwable��5'9w��   L
detailMessaget Ljava/lang/String;xpt Class1

Returning an Object Array

I am unable to figure out the way in which I can return an object
array from a cpp file to java. Is there any obvious error which you can spot in
my CPP file?
When I try to return a single object in the native function,
it works fine but when I try to extend it and return an array of the object, it
throws an error.
Please find below the details
h1. Java Class
public class Flight {
public String ID;
public class InterfaceClass {
private native Flight[] GetFlights();
public static void main(String[] args)
Flight[] objFlight = new
InterfaceClass().GetFlights();
System.+out+.println(objFlight[0].ID);
static {
System.+loadLibrary+("main");
h1. CPP File
JNIEXPORT jobjectArray JNICALL Java_InterfaceClass_GetFlights(JNIEnv env, jobject obj)
//1. ACCESSING THE FLIGHT CLASS
jclass cls_Flight = env->FindClass("LFlight;");
//2. CONSTRUCTOR FOR FLIGHT CLASS
jmethodID mid_Flight = env->GetMethodID(cls_Flight,"<init>", "()V");
//3. CREATING AN OBJECT OF THE FLIGHT CLASS
jobject objFlight = env->NewObject(cls_Flight, mid_Flight);
//4. ACCESSING THE FLIGHT's "ID" FIELD
jfieldID fid_ID = env->GetFieldID(cls_Flight, "ID","Ljava/lang/String;");
//5. SETTING THE VALUE TO THE FLIGHT's "ID" FIELD
env->SetObjectField(objFlight,fid_ID, env->NewStringUTF("ABC"));
//6. ACCESSING THE FLIGHT ARRAY CLASS
jclass cls_Flight_Array = env->FindClass("[LFlight;");
if(cls_Flight_Array == NULL)
printf("Error-1");
//7. CREATING A NEW FLIGHT ARRAY OF SIZE 1 jobjectArray arrFlightArray = env->NewObjectArray(1,cls_Flight_Array,NULL);
if(arrFlightArray == NULL)
printf("Error-2");
//8. INSERTING A FLIGHT BJECT TO THE ARRAY
env->SetObjectArrayElement(arrFlightArray,0,objFlight);
return arrFlightArray;
h1. Error
# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION
(0xc0000005) at pc=0x6d9068d8, pid=1804, tid=3836
# JRE version: 6.0_18-b07
# Java VM: Java HotSpot(TM) Client VM (16.0-b13 mixed mode, sharing
windows-x86
# Problematic frame:
# V [jvm.dll+0x1068d8]
# An error report file with more information is saved as:
# C:\Users\Amrish\Workspace\JNI Test\bin\hs_err_pid1804.log
# If you would like to submit a bug report, please visit:
http://java.sun.com/webapps/bugreport/crash.jsp
C:\Users\Amrish\Workspace\JNI Test\bin>java -Djava.library.path=.
InterfaceClass
Exception in thread "main" java.lang.ArrayStoreException
at
InterfaceClass.GetFlights(Native Method)
at
InterfaceClass.main(InterfaceClass.java:6)
C:\Users\Amrish\Workspace\JNI Test\bin>java -Djava.library.path=.
InterfaceClass
Exception in thread "main" java.lang.ArrayStoreException
at
InterfaceClass.GetFlights(Native Method)
at
InterfaceClass.main(InterfaceClass.java:6)
Edited by: amrish_deep on Mar 18, 2010 7:40 PM
Edited by: amrish_deep on Mar 18, 2010 7:40 PM

//6. ACCESSING THE FLIGHT ARRAY CLASS
jclass cls_Flight_Array = env->FindClass("[LFlight;");The argument to NewObjectArray is the +element+ class of the array you're about to create, not the +array+ class itself.

Java Null Pointer Exception when assigning a value to an Object Array

I am working on a webservice where the request can contain a dynamic array of SingleOwnerRequestNodeDetail objects. I need to read these objects in and sort them according to an orderNbr that is contained in the object.
I am attempting to read these object into a Comparable class and sort them. I am having problems when I try to insert the objects into my object array ComparableBO[]. I get the following error: Exception during processing: java.lang.NullPointerException
Any assistance would be greatly appreciated.
Here's my class:
public class ComparatorBO implements Comparable {
     private SingleOwnerRequestNodeDetail nodeDetailInfo;
     private int orderNbr;
     public SingleOwnerRequestNodeDetail getNodeDetailInfo() {
          return nodeDetailInfo;
     public void setNodeDetailInfo(SingleOwnerRequestNodeDetail nodeDetailInfo) {
          this.nodeDetailInfo = nodeDetailInfo;
     public int getOrderNbr() {
          return Integer.parseInt(nodeDetailInfo.getSingleOwnerRequestOrderNbr());
     public void setOrderNbr (int orderNbr) {
          this.orderNbr = orderNbr;
     public int compareTo(Object anotherNodeDetailInfo)throws ClassCastException {
          if (!(anotherNodeDetailInfo instanceof ComparatorBO))
               throw new ClassCastException ("An single owner request node detail object is expected");
          int anotherNodeDetailOrderNbr = ((ComparatorBO)anotherNodeDetailInfo).getOrderNbr();
          return this.orderNbr - anotherNodeDetailOrderNbr;
}Here's the code where I read in the objects and attempt to place them in the comparableBO[]
ComparatorBO[] comparatorBOArray = null;
comparatorBOArray = new ComparatorBO[requestInfo.length];
          for (int i=0; i < requestInfo.length; i++)
               SingleOwnerRequestNodeDetail nodes = new SingleOwnerRequestNodeDetail();
               ComparatorBO comparatorBO = new ComparatorBO();
               nodes.setSingleOwnerRequestNodeID(requestInfo.getSingleOwnerRequestNodeID());
               nodes.setSingleOwnerRequestNodeType(requestInfo[i].getSingleOwnerRequestNodeType());
               nodes.setSingleOwnerRequestOpCode(requestInfo[i].getSingleOwnerRequestOpCode());
               nodes.setSingleOwnerRequestOrderNbr(requestInfo[i].getSingleOwnerRequestOrderNbr());
               comparatorBO.setNodeDetailInfo(nodes);
               *comparatorBOArray[i].setNodeDetailInfo(comparatorBO.getNodeDetailInfo());*
               comparatorBOArray[i].setOrderNbr(Integer.parseInt(nodes.getSingleOwnerRequestOrderNbr()));

imadeveloper wrote:
I am working on a webservice where the request can contain a dynamic array of SingleOwnerRequestNodeDetail objects. I need to read these objects in and sort them according to an orderNbr that is contained in the object.
I am attempting to read these object into a Comparable class and sort them. I am having problems when I try to insert the objects into my object array ComparableBO[]. I get the following error: Exception during processing: java.lang.NullPointerException
Any assistance would be greatly appreciated.
Here's my class:
public class ComparatorBO implements Comparable {
     private SingleOwnerRequestNodeDetail nodeDetailInfo;
     private int orderNbr;
     public SingleOwnerRequestNodeDetail getNodeDetailInfo() {
          return nodeDetailInfo;
     public void setNodeDetailInfo(SingleOwnerRequestNodeDetail nodeDetailInfo) {
          this.nodeDetailInfo = nodeDetailInfo;
     public int getOrderNbr() {
          return Integer.parseInt(nodeDetailInfo.getSingleOwnerRequestOrderNbr());
     public void setOrderNbr (int orderNbr) {
          this.orderNbr = orderNbr;
     public int compareTo(Object anotherNodeDetailInfo)throws ClassCastException {
          if (!(anotherNodeDetailInfo instanceof ComparatorBO))
               throw new ClassCastException ("An single owner request node detail object is expected");
          int anotherNodeDetailOrderNbr = ((ComparatorBO)anotherNodeDetailInfo).getOrderNbr();
          return this.orderNbr - anotherNodeDetailOrderNbr;
}Here's the code where I read in the objects and attempt to place them in the comparableBO[]
ComparatorBO[] comparatorBOArray = null;
comparatorBOArray = new ComparatorBO[requestInfo.length];
          for (int i=0; i < requestInfo.length; i++)
               SingleOwnerRequestNodeDetail nodes = new SingleOwnerRequestNodeDetail();
               ComparatorBO comparatorBO = new ComparatorBO();
               nodes.setSingleOwnerRequestNodeID(requestInfo.getSingleOwnerRequestNodeID());
               nodes.setSingleOwnerRequestNodeType(requestInfo[i].getSingleOwnerRequestNodeType());
               nodes.setSingleOwnerRequestOpCode(requestInfo[i].getSingleOwnerRequestOpCode());
               nodes.setSingleOwnerRequestOrderNbr(requestInfo[i].getSingleOwnerRequestOrderNbr());
               comparatorBO.setNodeDetailInfo(nodes);
               *comparatorBOArray[i].setNodeDetailInfo(comparatorBO.getNodeDetailInfo());*
               comparatorBOArray[i].setOrderNbr(Integer.parseInt(nodes.getSingleOwnerRequestOrderNbr()));
Well normally when someone wont tell me what line the error occured in I copy paste their code into my compiler and find out. But you have other classes which you have not shown us so I cannot help you.
Incase you missed my point, please tell us where the error occured!

Calling a method that returns an object Array

Hello.
During a JNICALL , I wish to call a method which returns an object array.
ie my java class has a method of the form
public MyObject[] getSomeObjects(String aString){
MyObject[] theObjects=new MyObject[10];
return theObjects
Is there an equivalent to (env)->CallObjectMethod(...
which returns a jobjectArray instead of a jobject, and if not could somebody suggest a way around this.
Thanks,
Neil

I believe an array oj jobjects is also a jobject. You can then cast it to another class.

Invoking a AXIS Web Service with a Java object as input argument

Hi
I've been trying to execute a bpel process that invokes a web service deployed through axis.
This web service takes a java object as input argument as opposed to data types that are directly mapped to java types through the SOAP engine.
I deployed and tested the service outside of BPEL using a test client class. Everything works well.
When I try to configure the "Assign" and "Invoke" activities so that service can be invoked, I cannot see the data structure through the variable picker and I see the following message:
"The element {urn:ComplexTypeWebService}TimeSheetBean is not know to the schema container. Perhaps a schema file that uses it needs to include or import its definition.There mat also be an XML schema issue (non resolvable schema) which prevents {urn:ComplexTypeWebService}TimeSheetBean from being seen by the schema processor."
Is there any example that demonstrates how to invoke an axis web service in such scenario? What am I doing wrong?
Please, let me know.

The passing of Java objects in and out of a web service is NOT supported. variables must be xml documents defined by a XML schema. In my opinion, missing Java object and WSDL is not a good idea. -Edwin

Object Array problem in Websphere WebServices

Hi,
Can someone help me out with a situation that I am stuck with in WebServices.
I have a WebService which returns a DTO which has a getter and setter for an array of another type of DTO object.
Sample:-
public class MyDTO extends AnotherDTO implements Serializable {
private InnerDTO qcDtoList[] = new InnerDTO[0];
public MyDTO() {
public InnerDTO[] getQcDtoList() {
return qcDtoList;
public void setQcDtoList(InnerDTO[] resEDXDTOs) {
qcDtoList = resEDXDTOs;
But when I generate the WSDL for the webservice using WSAD 5.1 that uses the above DTO, the server side generated skeleton file looks like:-
public class MyDTO extends AnotherDTO implements java.io.Serializable {
private InnerDTO[] qcDtoList;
public MyDTO() {
public InnerDTO[] getQcDtoList() {
return qcDtoList;
public void setQcDtoList(InnerDTO[] qcDtoList) {
this.qcDtoList = qcDtoList;
As you can see from above, my initialization info is not available in the generated skeleton. I also tried putting the initialization in the constructor, with no effect.
What could be the reason for this? And is it possible to initialize my InnerDTO without losing it in the generated skeleton?
I simply want to initialize the object array.
If I need to modify my WSDL, what additional annotations should I add on the WSDL to get the desired effect?
I use WSAD's (Websphere Studio App Developer) IBM Websphere Webservices protocol and the JDK version is 1.3.1 and WSAD version is 5.1.
I would really appreciate if you can throw light on this?
Thanx and Regds,
Prashanth.

Thank you for the quick response. I looked at the example you suggested and made the following changes. Now I'm receiving an "Invalid datatype" error on the "SELECT column_value FROM TABLE(CAST(tbl_cat AS tbl_integer))" statement. I must be missing something simple and I just can't put my finger on it.
PROCEDURE SEL_SEARCH_RESULTS (v_term IN VARCHAR2,
v_categories IN ARCHIVE.integer_aat,
rs OUT RSType)
AS
/* PURPOSE: Return Search Results for the Category and Keyword Provided
VARIABLES:
v_categories = Document Categories array entered
v_term = Keyword entered
rs = Result Set
TYPE tbl_integer IS TABLE OF INTEGER;
tbl_cat tbl_integer;
BEGIN
FOR i IN 1 .. v_categories.COUNT
LOOP
tbl_cat.EXTEND(1);
tbl_cat(i) := v_categories(i);
END LOOP;
OPEN rs FOR
SELECT A.ID,
B.CATEGORY,
A.FILENAME,
A.DISPLAY_NAME,
A.COMMENTS
FROM TBL_ARCHIVE_DOCUMENTS A,
TBL_ARCHIVE_DOC_CAT B,
TBL_ARCHIVE_DOC_KEYWORDS C
WHERE A.ID = B.ID
AND A.ID = C.ID
AND B.CATEGORY IN (SELECT column_value FROM TABLE(CAST(tbl_cat AS tbl_integer)))
AND C.KEYWORD = v_term
ORDER BY A.ID;
END SEL_SEARCH_RESULTS;

Trouble writing to object array

Hi I did a semester of java 2 years ago and I'm trying to remember what I knew so please bear with me...
I am extracting data from an xml file and then writing that information to an object array called files containing 4 string and 1 array. This files array is in turn an element in another object array containing 400 files arrays called records.
It appeared to be working but when I want it to print out which ever record I have selected it only prints out the last record! It seems to be overwriting each files array with the next?
Another problem I can only print out an element of the array not the entire thing?
Please help have spent weeks on this
Here is the code:
Object[] Records = new Object[400];
Object files[] = new Object[5];
NodeList records = doc.getElementsByTagName("record");
for( int i = 0; i < records.getLength();i++)
Element record = (Element) records.item(i);
NodeList headers = record.getElementsByTagName("header");
Element header = (Element) headers.item(0);
NodeList ids = header.getElementsByTagName("identifier");
for(int j = 0; j < ids.getLength(); j++){
Element id = (Element) ids.item(j);
String ID = getText(id);
files[0] = ID;
NodeList metadatas = record.getElementsByTagName("metadata");
Element metadata = (Element) metadatas.item(0);
NodeList citeseers = metadata.getElementsByTagName("oai_citeseer:oai_citeseer");
Element citeseer = (Element) citeseers.item(0);
NodeList titles = citeseer.getElementsByTagName("dc:title");
for(int k = 0; k < titles.getLength(); k++){
Element title = (Element) titles.item(k);
String TITLE = getText(title);
files[1] = TITLE;
NodeList subjects = citeseer.getElementsByTagName("dc:subject");
for(int m = 0; m < subjects.getLength(); m++){
Element subject = (Element) subjects.item(m);
String SUBJECT = getText(subject);
files[2] = SUBJECT;
NodeList descriptions = citeseer.getElementsByTagName("dc:description");
for(int n = 0; n < descriptions.getLength(); n++){
Element description = (Element) descriptions.item(n);
String DESCRIPTION = getText(description);
files[3] = DESCRIPTION;
String[] Names = new String[20];
NodeList authors = citeseer.getElementsByTagName("oai_citeseer:author");
for(int l = 0; l < authors.getLength(); l++){
Element author = (Element) authors.item(l);
Names[l] = author.getAttribute("name");
files[4] = Names;
System.out.println("The id is "+files[0]);
System.out.println("The title is "+ files[1]);
System.out.println("The Subject is "+ files[2]);
System.out.println("The Description is "+ files[3]);
for(int q=0; q < authors.getLength(); q++){
System.out.println("The Names are "+ ((String[])files[4])[q]);
//Records[i] = files;
System.out.println(((Object[])Records[0])[0]);

I'm afraid I'm not going to make you a millionaire but I feel so relieved at the moment that if I had a million I'd give it to you!!Yeah, I know you won't make me a millionaire, but I can dream... :)
thanks for all your helpYou are welcome. Do you understand why you needed to move the creation of the "files" array.

2D Object Array Problem

Hey Guys,
I am trying to append or add another set of data to my object array but with no success. What I need is later on in my code I want to add new data to the rows array.
Any advise would be gratefully appreciated. Here is my code:
Object[][] rows =
    { { "AOLX", new Integer(10), new Double(12.1), OrderLocation.BUY, OrderStatus.RECIEVED }, {
      "ORCLX", new Integer(55), new Double(34.56), OrderLocation.BUY, OrderStatus.RECIEVED }, {
      "CSCOX", new Integer(100), new Double(5.6), OrderLocation.SELL, OrderStatus.PROCESSING }, {
      "NXTLX", new Integer(200), new Double(7.8), OrderLocation.BUY, OrderStatus.PROCESSING }, {
      "DELLX", new Integer(30), new Double(9.11), OrderLocation.SELL, OrderStatus.CANCELLED }
};Edited by: onlynew4now on Aug 6, 2009 5:29 AM

You got a severe case of Object denial.
I'd start with writing a class like this:
public class Order {
private String name;
private int amount;
private BigDecimal cost;
private OrderLocation location;
private OrderStatus status;
public Order(String name, int amount, BigDecimal cost, OrderLocation location, OrderStatus status) {
    this.name = name;
    this.amount = amount;
    this.cost = cost;
    this.location = location;
    this.status = status;
public Order(String name, int amount, String cost, OrderLocation location, OrderStatus status) {
    this(name, amount, new BigDecimal(cost), location, status);
// add getters and if necessary setters
}Then your code can look like this:
Order[] rows = {
new Order("AOLX", 10, "12.1", OrderLocation.BUY, OrderStatus.RECIEVED),
new Order("ORCLX", 55, "34.56", OrderLocation.BUY, OrderStatus.RECIEVED),
new Order("CSCOX", 100, "5.6", OrderLocation.SELL, OrderStatus.PROCESSING),
new Order("NXTLX", 200, "7.8", OrderLocation.BUY, OrderStatus.PROCESSING),
new Order("DELLX", 30, "9.11", OrderLocation.SELL, OrderStatus.CANCELLED);
};

Object array

what do i have to do to create and object array in a class of other class. i tried to created an object of that class first and the create the array by the compiler complains that there is a problem. here is the code.
classJTBar---------------------------------------------------
ackage JTShapes;
import java.awt.*;
public class JTBar extends JTFilledRectangle{
     int height=20; int length=0;//i will use the inheritated methods
     public JTBar(){//contructor that will be called on creating object
setHeight(20);//method of class JTRectangle
setWidth(0);//method of class JTRectangle
     public void setLengh (int x){
          length = x;
     public void incLengh(int y){
          length = length+y;
}//end class
User class
port JTShapes.*;
import JTUtils.*;
import javax.swing.*;
public class User extends JTUser{
     public void begin(){
JTBar jtbarobject= new JTBar();
     JTBar[] arrayObj= new JTBar[8];
     String[] weekDay= {"Monday", "Tuesday", "Wednesday", "Thuersday",
     "Friday", "Saturday", "Sunday"};

You don't have to do this:
String[] weekDay = new String[]{"Monday", "Tuesday", "Wednesday", "Thuersday", "Friday", "Saturday", "Sunday"};
This works fine:
String[] weekDay= {"Monday", "Tuesday", "Wednesday", "Thuersday", "Friday", "Saturday", "Sunday"};
What kind of Exception are you getting? I'm guessing you're getting a NullPointerException?
Looks like you're declaring your array correctly, but you are not initializing it:
JTBar[] arrayObj= new JTBar[8];
for (int i = 0; i < arrayObj.length; i++) {
arrayObj[i] = new JTBar();
}

Object Array --- Collection

Is there any way to directly convert and object Array to a Collection object. Basically i need to create a ArrayList from Object Array. The ArrayList has a constructor and also provides a method addAll() that accept Collection as parameter. So the problem becomes , how to convert Object Array to collection. As per my understanding all arrays should be essentially Collection Interface subclass.
So why am i not able to cast?
What is wrong in calling Object Array a sub class of Collection?
// OrderLineItem[] is the object array that i wish to have as ArrayList
// This code generates error -
//"ErpOrder.java": Error #: 364 : cannot cast gal.ERP.OrderLineItem[] to java.util.Collection
public void setLineItems( OrderLineItem[] arrOrderLineItem ) {
m_arrLineItems = new ArrayList((Collection)arrOrderLineItem);
}Is there no way except iterating through the array and adding individual Objects to ArrayList?

By "Object array" do you mean an Array class, or do you mean an Object[]? They are different. The Array class wraps an Object[] and provides useful methods to manipulate it.
There is no such thing as a Collection object, per say. "Collection" is an interface implemented by many objects such as LinkedList, Vector, ArrayList, HashSet, and TreeSet.
The Collection interface is designed to be an interface to any object that can keep a mutable list of other Objects, check to see if an Object is in that list, and iterate through all Objects in the list.
As far as resources go, I suggest the API reference at http://java.sun.com/j2se/1.4.1/docs/api/index.html.

Object Array Data Provider Refresh Possible bug

Hello
I am having a problem with Object Array Data Provider in terms that the table's data is not changed corectly after a request as expected, but after two requests.
Steps to reproduce the bug:
0. Create a new Visual Web project, call it 'test'.
Set 'Bundled Tomcat ' or 'Sun 9' as deploy target server.
Edit 'Page1' of the project.
1. Create an Entity class, simple class that has only getters and setters with a few fields (lets say 'id' and 'name').
2. In the SessionBean1 that is generated by the framework create an array of Entity class named 'entityArr', and getters and setters for this field.
3. Add a new Array Object Data Provider on the page and set in its properties as array the array created in the previous step 'entityArr (SessionBean1)'.
4. Add a new table component, and set as data provider the provider created in step 3.
In the Table's Layout map the fields from the Entity class, and set whatever compnents you desire for each component's type or leave the default ones (Static Text).
5. Add a 'property change trigger component' on the page. I called it like this because I tried the following :
5.1 A text field and a button to submit the text value
5.2 A Calendar component with autosubmit
5.3 A DropDown with autosubmit.
6. On the property change trigger component created at step 5 set a value_changed method that changes the the array that should be displayed by the table.
For Example, for a DropDown component, you will have a method like this :
public void dropDown1_processValueChange(ValueChangeEvent event) {
String idStr = (String) event.getNewValue();
System.out.println("Entity id :"+idStr);
if(idStr .equals("item1")) {
fillSessionBean1(true);
else {
fillSessionBean1(false);
getSessionBean1().setItemName(idStr);
private void fillSessionBean1(boolean fillValues) {
Entity[] values ;
if(fillValues) {
values = new Entity[4];
for ( int i=0;i<values.length; i++) {
Entity entity = new Entity();
entity.setDescription("Description "+i);
entity.setName("Name "+i);
entity.setId(i) ;
values[i] = entity;
else {
//values = new Entity[0];
values = null;
getSessionBean1().setEntityArr(values);
7. When running the program, if the selected is Item1, the table does not show the array set if on this branch.
I am using :
Netbeans 5.5 build 20061017100,
Visual Web Pack 070104_2,
Ent.Pack 20061212
jdk 1.6.0
Operating Systems : Both Linux Suse10 and Windows.
If anyone has a solution for this please let me know.

OK
While no one responded, I had to think for myself.
There is a bug in the code generated by netbeans or there is nowhere specified that if you attach an array to a data provider you will have to notify by hand the data provider that the array has changed.
You will have to put this line that is generated in init function in your valuechanged functions :
objectArrayDataProvider1.setArray((java.lang.Object[])getValue("#{SessionBean1.entityArr}"));
I think this aproach is a little bit wrong, even it works.
I believe the data provider should be notified the array has been changed.
There could be a much more simple aproaches :
1. In the code generated by netbeans, if you attach an array to a data provider the data provider will be notified after any set(Object[])
2. The data provider could have a function so you will ne anle to attach to the data provider an Object (the session bean, in my case) and the name of the function that retrieves the array (in my case, 'getEntityArr') .
The code generated by netbeans could add this function easily.
Maybe there are any other better aproaches, and I might be wrong.
It's good that it works.

Problem when using object array as parameter of server-side event

Hi Friends,
    I had defined an event in component interface of Component A, with object array as its parameter. but when I define event-handler for this event in Component B, the type of parameter in generated event-handler method is just the class itself instead of an array.
   It's a bug or array parameter is not support by server-side event in WD4J?
   Thanks in advanced.

I think you are trying to do the editing of parameter from the java editor.
Do it via the controller editer. Go the methods tab. Select the actionhandler.
In the parameter section edit the paramter. Change the dimensions here.
Regards,
Ashwani Kr Sharma

Object array input

Similar Messages

Maybe you are looking for