About JObject

Question

Hi All
I am using PL/SQL web service. PL/SQL procedure receives primary key and on the basis of PK, it select values in different parameters. The parameters are defined as out.
When I import it in Oracle form, it generates function
FUNCTION custSelc(
obj ORA_JAVA.JOBJECT,
a0 ORA_JAVA.JOBJECT) RETURN ORA_JAVA.JOBJECT IS
BEGIN
args := JNI.CREATE_ARG_LIST(1);
JNI.ADD_OBJECT_ARG(args, a0, 'java/math/BigDecimal');
RETURN JNI.CALL_OBJECT_METHOD(FALSE, obj, 'mypackage1/MyWebService1Stub', 'custSelc', '(Ljava/math/BigDecimal;)Lcustomer_all/Customer_allImpl_custSelc_Out1;', args);
END;
I dont know how to get column values form ORA_JAVA.JOBJECT??
I have to display the values in specific fields in Oracle forms.

Answer 1

Hi bschauwe,
I have seen the documents, but I cannot find any related context of CallObjectMethod and how to return a java array object (jobjectArray??) Below is my code.
Java <code>
,//Class Image
public class Image{
     private int myWidth;
     private int myHeight;
     private int[][] myData;
     public Image(int width, int height){
          myWidth = width;
          myHeight = height;
          myData = new int [width][height];
          for (int i = 0; i < width; i++){
     for (int j = 0; j < height; j++){
     myData[i][j] = 10;
     public int getWidth() {return myWidth;}
     public int getHeight() {return myHeight;}
     public int[][] getData() {return myData;}
//End of Class Image
//Class AccessImage
class AccessImage {
private native void measureImage(Image img);
public static void main(String args[])
AccessImage p = new AccessImage();
Image img = new Image(40, 40);
p.measureImage(img);
//End of class AccessImage
//JNI code
#include <stdio.h>
#include <jni.h>
#include "AccessImage.h"
JNIEXPORT void JNICALL Java_AccessImage_measureImage(JNIEnv *env, jobject obj, jobject img)
jobjectArray Data;
jobject thd = img;
jclass cls = (*env)->FindClass(env, "Image");
jmethodID mid3 = (*env)->GetMethodID(env, cls, "getData", "()[[I");
Data = (*env)->CallObjectMethod(env, thd, mid3); //Errors happened here
</code>
Since I'm a newbie of JNI, please help me out. My purpose is to access the 2D integer array in class Image method getData(). Thanks a lot!