How to use the programe of java in oracle

Hello Expert,

My Config is: -.

Forms [32 bit] Version 11.1.1.3.0 (Production)

JDeveloper - 10.1.3

I want to use the java programe in the form builder. I create a java class in Jdeveloper.

package demo;

import java.net.InetAddress;

import java.net.NetworkInterface;

java.net.SocketException import;

java.net.UnknownHostException import;

public class get_info {}

Public Shared Sub main (String [] args) {}

ch_add();

}

public static ch_add() Sub

{

InetAddress ip;

try {}

IP = InetAddress.getLocalHost ();

/*System.out.println ("current IP address:" + ip.getHostAddress ()); */

NetworkInterface network = NetworkInterface.getByInetAddress (ip);

Mac Byte [] = network.getHardwareAddress ();

/*System.out.print ("MAC address current :"); */

StringBuilder sb = new StringBuilder();

for (int i = 0; i < mac.length; i ++)

{

SB. Append (String.format ("% 02 X %s", mac [i], (I < mac.length - 1)?)) "-" : ""));

}

System.out.println (SB. ToString());

} catch (UnknownHostException e) {}

e.printStackTrace ();

} catch (SocketException e) {}

e.printStackTrace ();

}

and Formweb.cfg and default.env and also add in Form_class_path. After that, I import this java in forms.

Code genertated-

PACKAGE get_info BODY IS

-DO NOT EDIT THIS FILE - it is machine generated!

args NYI. ARGLIST;

Constructor for signature (V)

New FUNCTION RETURN ORA_JAVA. JOBJECT IS

BEGIN

args: = NULL;

RETURN (JNI. NEW_OBJECT ("demo/get_info", "(V)", args));

END;

-Method: main ([Ljava/lang/String ;) V

Main PROCEEDINGS)

A0 ORA_JAVA. JACOB) IS

BEGIN

args: = NYI. CREATE_ARG_LIST (1);

NYI. ADD_OBJECT_ARG (args, a0, ' [Ljava/lang/String ;');)

NYI. CALL_VOID_METHOD (TRUE, NULL, "demo/get_info', 'hand', ' ([Ljava/lang/String ;)) V ", args);

END;

-Method: ch_add (V)

PROCEDURE ch_add IS

BEGIN

args: = NULL;

NYI. CALL_VOID_METHOD (TRUE, NULL, "demo/get_info", "ch_add", "(V)", args);

END;

-Method: wait (J) V

PROCEDURE to wait)

obj ORA_JAVA. JOBJECT,

NUMBER of a0) IS

BEGIN

args: = NYI. CREATE_ARG_LIST (1);

NYI. ADD_LONG_ARG (args, a0);

NYI. CALL_VOID_METHOD (FALSE, obj, "demo/get_info", "expect", "(J) V", args);

END;

-Method: wait (V)

PROCEDURE to wait)

obj ORA_JAVA. JOBJECT) IS

BEGIN

args: = NULL;

NYI. CALL_VOID_METHOD (FALSE, obj, "demo/get_info", "expect", "(V)", args);

END;

-Method: wait (JI) V

PROCEDURE to wait)

obj ORA_JAVA. JOBJECT,

NUMBER of a0,

The a1 NUMBER) IS

BEGIN

args: = NYI. CREATE_ARG_LIST (2);

NYI. ADD_LONG_ARG (args, a0);

NYI. ADD_INT_ARG (args, a1);

NYI. CALL_VOID_METHOD (FALSE, obj, "demo/get_info", "expect", "V (JI)", args);

END;

-Method: equals (Ljava/lang/object ;) Z

FUNCTION is equal to)

obj ORA_JAVA. JOBJECT,

A0 ORA_JAVA. JOBJECT) RETURN BOOLEAN IS

BEGIN

args: = NYI. CREATE_ARG_LIST (1);

NYI. ADD_OBJECT_ARG (args, a0, ' object java/lang / "");

BACK TO JNI. CALL_BOOLEAN_METHOD (FALSE, obj, "demo/get_info", "equal to", "(Ljava/lang/object ;)) Z', args);

END;

-Method: toString () Ljava/lang/String;

FUNCTION toString)

obj ORA_JAVA. JOBJECT) RETURN VARCHAR2 IS

BEGIN

args: = NULL;

BACK TO JNI. CALL_STRING_METHOD (obj, "demo/get_info", "toString", "() Ljava/lang/String"; FALSE, args);

END;

-Method: hashCode () I have

FUNCTION (hashCode

obj ORA_JAVA. JOBJECT RETURN NUMBER) IS

BEGIN

args: = NULL;

BACK TO JNI. CALL_INT_METHOD (FALSE, obj, "demo/get_info", "hashCode", ' () I ", args");

END;

-Method: getClass () Ljava/lang/class;

FUNCTION getClass)

obj ORA_JAVA. ORA_JAVA RETURN JOBJECT). JOBJECT IS

BEGIN

args: = NULL;

BACK TO JNI. CALL_OBJECT_METHOD (obj, "demo/get_info", "getClass", "() Ljava/lang/class"; FALSE, args);

END;

-Method: notify (V)

Notification PROCEDURE)

obj ORA_JAVA. JOBJECT) IS

BEGIN

args: = NULL;

NYI. CALL_VOID_METHOD (FALSE, obj, "demo/get_info', 'prevent',"(V)", args);

END;

-Method: notifyAll () V

PROCEDURE notifyAll)

obj ORA_JAVA. JOBJECT) IS

BEGIN

args: = NULL;

NYI. CALL_VOID_METHOD (FALSE, obj, "demo/get_info", "notifyAll", "(V)", args);

END;

BEGIN

NULL;

END;

Now, I want to call the o/p of the Java programe in the oracle text element. Please help me. It is very urgent. I'm not good in Java.

It is all explained in http://fdtool.free.fr/forms-pjc-bean/first-bean/first_bean.pdf

In essence, you need:

-a Java class that extends from oracle.forms.ui.VBean where you must implement getProperty, as stated in article method

-a unique property of your choice name

-forms of type point area of bean that should be visible and on a canvas

-you could then call your method using get_custom_property (, 1, )

Just adapt the example comes from the tutorial above. You can of course also use the FBean package so you will not need to extend kifani but simply to any class that extends from container. As a first step, maybe you must redo the complete tutorial to get a handle on the how and the why.

see you soon

Tags: Oracle Development

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--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE    11.2.0.3.0      Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production

I'm a PL/SQL programmer, but not a Java programmer. I have the following java function that does what it's supposed to add a pdf at the end of another pdf document:

import oracle.sql.BLOB;
import org.apache.pdfbox.util.PDFMergerUtility;
import oracle.jdbc.OracleConnection;
import oracle.jdbc.driver.OracleDriver;
import java.io.OutputStream;

public class PDFUtilities {
public static BLOB appendPDF(BLOB pdfdoc1, BLOB pdfdoc2) throws Exception {
       
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          OracleConnection conn = (OracleConnection)new OracleDriver().defaultConnection();
        //create the output blob using the connection
          BLOB outPDF = BLOB.createTemporary(conn, true ,BLOB.DURATION_SESSION);
        //create an output stream to the output blob
          OutputStream os = outPDF.setBinaryStream(0);               
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        //connect the merger to the output stream
          mergerUtility.setDestinationStream(os);
        //stream from each input blob into the merger utility
          mergerUtility.addSource(pdfdoc1.getBinaryStream());
          mergerUtility.addSource(pdfdoc2.getBinaryStream());
        //merge the 2 input pdfs
          mergerUtility.mergeDocuments();             
        //do not close the output stream
        //return the blob
        return outPDF;
    }

}

CREATE OR REPLACE package PDFTOOLS.pkg_pdf_utilities
as
function f_get_merged_pdf (
          pi_pdf1       blob
        , pi_pdf2    blob
  )
  return blob;
end pkg_pdf_utilities;
/

CREATE OR REPLACE package body PDFTOOLS.pkg_pdf_utilities
as
function f_get_merged_pdf (
          pi_pdf1       blob
        , pi_pdf2    blob
  )
  return blob
  as language java name 
  'com.mycode.pdftools.PDFUtilities.appendPDF(oracle.sql.BLOB, oracle.sql.BLOB) return oracle.sql.BLOB';
end PDFTOOLS.pkg_pdf_utilities;
/

It's very basic, but doesn't seem to work. However, I want to my function from PL/SQL to a procedure that looks like this:

CREATE OR REPLACE package PDFTOOLS.pkg_pdf_utilities
as
procedure sp_append_pdf (
          pio_pdf2append2   IN OUT NOCOPY blob
        , pio_pdf2append   IN OUT NOCOPY blob
  )
end pkg_pdf_utilities;
/

What is important, what I'm trying to do is to NOCOPY the BLOBs. Otherwise, I have to read my PDF files into 2 BLOBs and create a 3rd blob as output. I prefer to be able to keep the pio_pdf2append2 as the final output. What I actually do call thing in a loop to gradually add a PDF file to a big. I'm not linking this in one operation because of concerns over the use of the system and because the pdfbox library java has would have been question after 850 in PDF format, which is not completely unrealistic in my approach.

How could I achieve this?

Post edited by: Pollocks01 only formatted code blocks because atlassian {code} tags didn't work.

Passage of an argument as input/OUTPUT requires the mapping to a Java array.

Simplified example that adds one FOR the other:

create or replace and compile java source named blob_appender_src as
import oracle.sql.BLOB;
import java.sql.SQLException;
import java.io.OutputStream;
import java.io.InputStream;
import java.io.IOException;

public class BLOBAppender {
    public static void run (BLOB[] p1, BLOB p2) throws SQLException, IOException { 

        InputStream is = p2.getBinaryStream();
        OutputStream os = p1[0].setBinaryStream(p1[0].length()+1);                

        byte[] buffer = new byte[1024];
        int len;
        while ((len = is.read(buffer)) != -1) {
            os.write(buffer, 0, len);
        }
        os.close();
        is.close();
    }
}

create or replace procedure blob_append (
  p_lob1  in out nocopy blob
, p_lob2  in            blob
)
as language java name 'BLOBAppender.run(oracle.sql.BLOB[], oracle.sql.BLOB)' ;
/

SQL> declare
  2    p_lob1  blob := utl_raw.cast_to_raw('ABC');
  3    p_lob2  blob := utl_raw.cast_to_raw('DEF');
  4  begin
  5    blob_append(p_lob1, p_lob2);
  6    dbms_output.put_line(utl_raw.cast_to_varchar2(p_lob1));
  7  end;
  8  /

ABCDEF

PL/SQL procedure successfully completed.

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