Enum in java 5 to be replaced in java2

Hi,
Could anyone suggest for the following problem
Now in a lot of programs, enum keyword is used which use java5 and this keyword is to be replaced by some codes which would run with java2 .
Could anyone please say a generic way by which i will not need to change in each file and solve the purpose which can be run by java2 too.

: /\ P:^P would look better. ;)
0 0
>
U

Similar Messages

Implement enum in java

I need help in implementing enums in java.
I am using java 1.4.2
I want to implement enum inside my public class.
Any pointers....
Thanks
Cheers

thanks for the responses...
dont have much control over java version...achieved
this using static final int
thanks
cheersI strongly recommend you buy this book. Not only does it tell you how to implement typesafe enums, it's chock-full of very useful tips and the like, that if you pay attention to will make you a better programmer

Possible to extend java Concurrent Program and replace standard??

Hi All!
i have following developing need. There is a java concurrent program POXPOPDF (PO Output for Communication). The customer needs this program to do actually something complete different than printing the PO in PDF. The executable for this CP is java class PoGenerateDocumentCP in oracle.apps.po.communicate package.
We thought that we may be able to extend that class and then in some way made OA to use the extended java class instead of the standard. This is possbile and simple for OA Framework pages unsing classes as controllers, but I don't know how it could be done for CP (if there's a way to do it without violent intervention in standard system).. Is it possbile, can anyone help me with this.
The thing is that instead of reformatting the XML returned from PO_COMMUNICATION_PVT.POXMLGEN (function POXMLGEN in database package PO_COMMUNICATION_PVT) into PDF we want to reformat into another XML and then send it in other way to a webservice. Once I have the XML from POXMLGEN I have no problem to reformat it into another XML (I think, I have done it iwith other issues/processes). The webservice and the call to it is no problem and is already use with other purposes in other processes, but here (replaceing this stadard java class for an extension/new one) I am a little lost.
Appreciate very much your help.
Regards,
Patricia

Never mind, I see now that FND_REQUEST.SUBMIT_REQUEST() really does work, I tried with a different standard java concurrent program and it worked fine, and then I figured out that my parameters into fnd_request.submit_request for concurrent program APXVVCF4 were not correct (application short name was invalid for concurrent program).
Thanks for the Info!

Java regex - eval for replacement

Hi
Could you please help me in a regex problem?
I have a regex pattern in a string. I want to apply this on a text, and wherever it is applied the matched text should be replaced by the length of the found text. Now I have done it with a while loop, but it takes too long to process:
               Pattern p = Pattern.compile(patternString);
               Matcher m = p.matcher(text);
               // I dont know how to get this job done with m.replaceAll(). Thats why the following loop
               // By the way, in Perl there is "eval" with which we can do this
               while (m.find()) {
                    String foundText = m.group();
                    Pattern p2 = Pattern.compile( Pattern.quote(foundText) );
                    text = p2.matcher(text).replaceAll( foundText.length() );
               }Is there a better way? Kindly help.
Thanks
Sri

There's nothing like Perl's /e modifier (or Ruby's gsub) in Java's regex support, but ther's a much better alternative to what you're doing. In addition to replaceAll() and replaceFirst(), Matcher provides the lower-level methods appendReplacement() and appendTail() that offer you more control over the replacement process. Check this out: Pattern p = Pattern.compile(patternString);
Matcher m = p.matcher(text);
StringBuffer sb = new StringBuffer();
while (m.find()) {
m.appendReplacement(sb, String.valueOf(m.group().length()));
m.appendTail(sb);
text = sb.toString(); Or you could just use Elliott Hughes' Rewriter class. (You may need to get rid of some code in the main() method that references other utility classes of his; Rewriter itself only depends the java.util.regex package.)

Enum - core java II example

hi
the following code is an example taken from 'core java II'-book.
what i don't understand is where the enum constructor is called
to set the abbreviation field
anyone care to explain ?
thanks
import java.util.*;
public class EnumTest {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a size: (SMALL, MEDIUM, LARGE, EXTRA_LARGE) ");
        String input = in.next().toUpperCase();
        Size size = Enum.valueOf(Size.class, input);
        System.out.println("size=" + size);
        System.out.println("abbreviation=" + size.getAbbreviation());
        if (size == Size.EXTRA_LARGE) {
            System.out.println("Good job--you paid attention to the _.");
enum Size {
    SMALL("S"), MEDIUM("M"), LARGE("L"), EXTRA_LARGE("XL");
    private Size(String abbreviation) {
        this.abbreviation = abbreviation;
    public String getAbbreviation() {
        return abbreviation;
    private String abbreviation;
}

so from what i get here is that
SMALL("S"),MEDIUM("M"),LARGE("L"); are the constructors from where abbreviations are taken.
I want to clear one more doubt.
private Size(String abbreviation) {
        this.abbreviation = abbreviation;1. This is also a constructor right ? If yes then, what was the need that the author made this constructor private ?
2. Why public modifier is not allowed there ?
3. Size s = Enum.valueOf(Size.class,input);Over here what is the role of argument Size.class ?
4. enum size
Size s = Enum.valueOf(Size.class,input);In the first code enum's e is small but in the second code Enum's E is capital. How so ?
Edited by: levislover on Jun 16, 2010 11:29 PM

Java.util.regex and replacing patterns with function calls

Hi everyone,
I'm in terrible need for help.
Any advice is much appreciated.
I have the following sentence in a file. The sequence of numbers is actually a
date in seconds since 1970. I need to identify the 9 or 10 sequence of numbers
send that to a method that will transate the numbers into a date in a string format.
Then replace it in the file.
Here is an example:
"My name is Peter. Please 1020421277 help me figure this out 108062327. "
using the following block I can convert it to this
"My name is Peter. Please | help me figure this out |. "
[block]
Pattern p = Pattern.compile("[0-9]{9,10}+");
Matcher m = p.matcher("");
String aLine = null;
while((aLine = in.readLine()) != null) {
m.reset(aLine);
String result = m.replaceAll("|");
out.write(result);
out.newLine();
[end block]
So I need to change the above block so that my sentence looks like this.
"My name is Peter. Please 05/03/2002 10:21:17 help me figure this out 06/04/1973 17:18:47. "
The method that converts the numbers into a date is not of a concern because I already have
the code to do that.
If anyone has suggestion, please let me know.
Thanks in advance.
Peter
[email protected]

Never mind, I was able to figure it out....
Common2 cm = new Common2();
Pattern p = Pattern.compile("[0-9]{9,10}+");
Matcher m = p.matcher("");
m = p.matcher(s1);
while ((found = m.find())) {
String replaceStr = m.group();
System.out.print("\tReplaceString is: " + replaceStr);
replaceStr = cm.get_date(replaceStr);
System.out.println("\t\tConverted to: " + replaceStr);
m.appendReplacement(buf,replaceStr);
m.appendTail(buf);
----------------- The get_date method in Common2 looked like this ------------------------------
public String get_date(String myString)
String s;
long lsecs = Long.parseLong(myString);
lsecs = lsecs * 1000; // its now milliseconds.
// Determine default calendar and then the offset to GMT.
Calendar localCalendar = Calendar.getInstance();
int offset = localCalendar.get(Calendar.DST_OFFSET) + localCalendar.get
(Calendar.ZONE_OFFSET);
// Take the number of milliseconds subtract the gmtoffset
Date GMTdate = new Date(lsecs - offset);
// Format date
Format myformat;
myformat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss a z ");
s = myformat.format(GMTdate);
return s;
Peter

HT202912 How do I remove Java 1.7 and replace this with Java 1.6.0_65?

I need to get back to an older JRE specifically Java 1.6.0_65. Right now I have Java 1.7.-_71-b14.
I've tried the instruction in the terminal - sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
That doesn't work. In Terminal mode, a "java -version" query returns the same "Java 1.7..." indicating it has not been removed. What else do I have to do here ?
Thanks

I need to get back to an older JRE specifically Java 1.6.0_65. Right now I have Java 1.7.-_71-b14.
I've tried the instruction in the terminal - sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
That doesn't work. In Terminal mode, a "java -version" query returns the same "Java 1.7..." indicating it has not been removed. What else do I have to do here ?
Thanks

JAVA Sax mapping replaces &_amp; with & causing mapping to fail

Hi all,
I have the following mapping scenario:
Source XML -> Java Sax Mapping -> Graphical Mapping -> Target structure
The source XML is valid and caters for special characters like & which appear as &_amp; in the XML (ignore the underscore _ without it the editor strips the amp;, isn't that ironic!).
The second step of the interface mapping, which is the graphical map, is failing. It seems that the Java Sax mapping is replacing &_amp; with & in the XML, which is then causing the graphical map to fail as it cannot handle the special character &.
Is there anyway I can prevent the Java Sax mapping from changing & to &
Or is the only solution for me to write extra code in the Java map to convert & back to &_amp; before passing to the second mapping step????
Any help appreciated.
Che
Edited by: Che Eky on Feb 18, 2009 11:05 PM

Hi..
Use this in your source xml file for '&' ->"&_amp;" remove the underscore
Regards..
Krishna..
Edited by: PrasannaKrishna Mynam on Feb 19, 2009 2:20 PM
Edited by: PrasannaKrishna Mynam on Feb 19, 2009 2:20 PM

How to avaoid java.lang.IllegalArgumentException: No enum const class

HI ,
Iam getting java.lang.IllegalArgumentException when iam using switch case through Enum contants.
//Enum Constants declaration
public enum USEOFPROCEEDSVALUES { U1,U2,U3, U4}
//Using Enum in Java class
Test.java
USEOFPROCEEDSVALUES useOfProceedsVar =USEOFPROCEEDSVALUES.valueOf(useOfproceeds);
switch (useOfProceedsVar) {
               case U1:
               revenueSourceCode="REVENUE_SOURCE_CODE.POWER";
                    break;
               case U2:
                    revenueSourceCode="REVENUE _SOURCE_CODE.WATER";
               break;
               case U3:
                    revenueSourceCode="REVENUE_SOURCE_CODE.POWER";
                    break;
               case U4:
                         revenueSourceCode=REVENUE_SOURCE_CODE.POWER";
                    break;
default:
                    revenueSourceCode=null;
Exception raising if there is either of these not U1,U2,U3,U4 ara not avalabele. i.e is if useOfProceedsVar is A6 then exception raising
How to avoid this exception
Thanks for early reply

user818909 wrote:
HI ,
Iam getting java.lang.IllegalArgumentException when iam using switch case through Enum contants.
//Enum Constants declaration
public enum USEOFPROCEEDSVALUES { U1,U2,U3, U4}
//Using Enum in Java class
Exception raising if there is either of these not U1,U2,U3,U4 ara not avalabele. i.e is if useOfProceedsVar is A6 then exception raisingActually useOfProceedsVar can never be A6, it can only take a value from the enum.
The exception will be raised by valueOf, which (quite correctly) throws it if the String you pass to it doesn't match any of the enum constants.
>
How to avoid this exception
Don't avoid it, process it. What do you want your code to do if the string doesn't match any of your enum constants? Whatever it is, stick it in a catch clause.

POFing Enums... InstantiationException

I'm getting this exception
Exception in thread "Thread-1" (Wrapped) java.io.IOException: An exception occurred instantiating a PortableObject user type from a POF stream: type-id=10015, class-name=oms.grid.SendingType, exception=
java.lang.InstantiationException: oms.grid.SendingType
        at com.tangosol.util.ExternalizableHelper.fromBinary(ExternalizableHelper.java:265)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$ConverterFromBinary.convert(PartitionedCache.CDB:4)
        at com.tangosol.util.ConverterCollections$ConverterInvocableMap.invoke(ConverterCollections.java:2281)
        at com.tangosol.util.ConverterCollections$ConverterNamedCache.invoke(ConverterCollections.java:2747)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$ViewMap.invoke(PartitionedCache.CDB:11)
        at com.tangosol.coherence.component.util.SafeNamedCache.invoke(SafeNamedCache.CDB:1)
        at coup.QueueReader.run(QueueReader.java:105)
        at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.IOException: An exception occurred instantiating a PortableObject user type from a POF stream: type-id=10015, class-name=oms.grid.SendingType, exception=java.lang.InstantiationException: oms.grid.SendingType
        at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:122)
        at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3306)
        at com.tangosol.io.pof.PofBufferReader.readAsObjectArray(PofBufferReader.java:3350)
        at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:2924)
        at com.tangosol.io.pof.PofBufferReader.readObject(PofBufferReader.java:2603)
        at com.tangosol.io.pof.ConfigurablePofContext.deserialize(ConfigurablePofContext.java:358)
        at com.tangosol.util.ExternalizableHelper.deserializeInternal(ExternalizableHelper.java:2745)
        at com.tangosol.util.ExternalizableHelper.fromBinary(ExternalizableHelper.java:261)
        ... 7 moremy SendingType.java file looks like
package oms.grid;
import com.tangosol.io.pof.PofReader;
import com.tangosol.io.pof.PofWriter;
import com.tangosol.io.pof.PortableObject;
import java.io.IOException;
public enum SendingType implements PortableObject {
    NEW_ORDER,
    CANCEL,
    REPLACE,
    IGNORE;
    public void readExternal(PofReader reader) throws IOException {
    public void writeExternal(PofWriter writer) throws IOException {
}probably I'm making this too difficult, right?
Thanks,
Andrew

We just use a generic serializer for all enums:
public class EnumSerializer implements PofSerializer {
     @SuppressWarnings({ "rawtypes" })
     private final Class<Enum> type;
     private final Object[] enumValues;
     @SuppressWarnings({ "unchecked", "rawtypes" })
     public EnumSerializer(int typeId, Class<Enum> type) {
          try {
               this.type = type;
               enumValues = EnumSet.allOf(type).toArray();
          } catch(Throwable t) {
               t.printStackTrace();
               throw new RuntimeException(t);
    @Override
    public Object deserialize(PofReader in) throws IOException {
         try {
              final int ordinal = in.readInt(0);
              try {
                   return enumValues[ordinal];
              } catch(ArrayIndexOutOfBoundsException e) {
                   throw new IOException(String.format("An error ocurred trying to deserialize enum [%s]: ordinal %d is not a valid value.", type.getName(), ordinal), e);
        } finally {
            in.readRemainder();
    @SuppressWarnings({ "rawtypes" })
    @Override
    public void serialize(PofWriter out, Object obj) throws IOException {
         Enum e = (Enum) obj;
        out.writeInt(0, e.ordinal());
        out.writeRemainder(null);
}Regards, Paul

PL/SQL w/ Java to run OS batch file crashes Oracle

I followed instructions from "Ask Tom" on using PL/SQL with Java to execute an OS batch file. For testing purposes, my batch file does nothing more than display the date and time from the OS.
However, when I run the PL/SQL that executes this simple batch file repeatedly - anywhere from two to four times, the Oracle instance crashes abruptly. Nothing is written to the alert log. No trace files are created.
Here is a sample session:
SQL*Plus: Release 9.0.1.3.0 - Production on Wed Mar 24 10:04:26 2004
(c) Copyright 2001 Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
SQL> set serveroutput on size 1000000
SQL> exec dbms_java.set_output(1000000) ;
PL/SQL procedure successfully completed.
SQL> begin
2 rc('c:\dba_tools\jobs\test.cmd') ;
3 end ;
4 /
C:\Ora9ir2\DATABASE>date /t
Wed 03/24/2004
C:\Ora9ir2\DATABASE>time /t
10:05 AM
PL/SQL procedure successfully completed.
SQL> begin
2 rc('c:\dba_tools\jobs\test.cmd') ;
3 end ;
4 /
C:\Ora9ir2\DATABASE>date /t
Wed 03/24/2004
C:\Ora9ir2\DATABASE>time /t
10:06 AM
PL/SQL procedure successfully completed.
SQL>
Shortly after the second "run", Oracle crashed. All I received was the following error message:
Unhandled exception in oracle.exe (ORAJOX9.DLL): 0xC0000005: Access Violation
Here is the Java procedure at the heart of my PL/SQL:
create or replace and compile
java source named "Util"
as
import java.io.*;
import java.lang.*;
public class Util extends Object
public static int RunThis(String args)
Runtime rt = Runtime.getRuntime();
int rc = -1;
try
Process p = rt.exec(args);
int bufSize = 4096;
BufferedInputStream bis =
new BufferedInputStream(p.getInputStream(), bufSize);
int len;
byte buffer[] = new byte[bufSize];
// Echo back what the program spit out
while ((len = bis.read(buffer, 0, bufSize)) != -1)
System.out.write(buffer, 0, len);
rc = p.waitFor();
catch (Exception e)
e.printStackTrace();
rc = -1;
finally
return rc;
I am running Oracle 9i rel. 2 installed on my PC under Windows XP Professional (Service Pack 2). My knowledge of Java is next to nothing.
Can anyone give me an idea(s) as to what might be causing Oracle to crash?
Thanks.

Using 9.2.0.4 I made the following adjustments and it seems to run as often as I care to do it:
Java changes:
create or replace and compile
java source named "Util"
as
import java.io.*;
import java.lang.*;
public class Util extends Object
public static void RunThis(java.lang.String args)
Runtime rt = Runtime.getRuntime();
int rc = -1;
try
Process p = rt.exec(args);
int bufSize = 4096;
BufferedInputStream bis =
new BufferedInputStream(p.getInputStream(), bufSize)
int len;
byte buffer[] = new byte[bufSize];
// Echo back what the program spit out
while ((len = bis.read(buffer, 0, bufSize)) != -1)
System.out.write(buffer, 0, len);
rc = p.waitFor();
catch (Exception e)
e.printStackTrace();
finally
PL/SQL Wrapper :
create or replace procedure rc (cmd VARCHAR2) as
language java name 'Util.RunThis(java.lang.String)';
Execution:
begin
rc('c:\dba_tools\jobs\test.cmd');
end ;
D:\oracle\ora92\DATABASE>date /t
Fri 03/26/2004
D:\oracle\ora92\DATABASE>time /t
10:48 AM
PL/SQL procedure successfully completed.
SQL> /
D:\oracle\ora92\DATABASE>date /t
Fri 03/26/2004
D:\oracle\ora92\DATABASE>time /t
10:48 AM
PL/SQL procedure successfully completed.
SQL> /
D:\oracle\ora92\DATABASE>date /t
Fri 03/26/2004
D:\oracle\ora92\DATABASE>time /t
10:49 AM
PL/SQL procedure successfully completed.
SQL> /
D:\oracle\ora92\DATABASE>date /t
Fri 03/26/2004
D:\oracle\ora92\DATABASE>time /t
10:50 AM
PL/SQL procedure successfully completed.
SQL>
The only thing I really changed was the reurn value from the java procedure. If it has a return value then it should be declared as a function, not a procedure. Since you probably (apparently) weren't using the return value I dropped it and made it a procedure.

Expanding text java script

I got a java script from a coworker that allows me to click
on a button and display expanded text. The problem is, when its
clicked, the page jumps back to the top of the page. Any ideas?
Here is a sample of the code:
<a href="#"
onclick="document.getElementById('what_is').style.display=(document.getElementById('what_ is').style.display=='block')?'none':'block';"><img
src="Images/More.jpg" border="0" align="left" />
Thanks!!!!
PS- please be gentle, I have never used java script before.
:)

nst_21710 wrote:
> I got a java script from a coworker that allows me to
click on a button and
> display expanded text. The problem is, when its clicked,
the page jumps back to
> the top of the page. Any ideas?
>
> Here is a sample of the code:
> <a href="#"
>
onclick="document.getElementById('what_is').style.display=(document.getElementBy
>
Id('what_is').style.display=='block')?'none':'block';"><img
> src="Images/More.jpg" border="0" align="left" />
>
> Thanks!!!!
>
> PS- please be gentle, I have never used java script
before. :)
>
replace:
<a href="#"
with:
<a href="javascript:;"
seb ( [email protected])
http://webtrans1.com | high-end web
design
Downloads: Slide Show, Directory Browser, Mailing List

How to call a java method in a Stored procedure

Hi.,
I was trying to call a method in a stored procedure
This was my procedure
CREATE OR REPLACE PROCEDURE proc_copy_file(sr_file VARCHAR2,dt_file VARCHAR2)
AS LANGUAGE JAVA
NAME 'FileCopy.copyfile(String,String)'; // calling a java method
/   this was my java method
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "FileCopy" as
import java.io.File;
import java.io.IOException;
import java.io.FileReader;
import java.io.FileWriter;
import javax.imageio.stream.FileImageInputStream;
import javax.imageio.stream.FileImageOutputStream;
import java.security.AccessControlException;
public class FileCopy {
      // Define variable(s).
          private static int c;
          private static File file1,file2;
          private static FileReader inTextFile;
          private static FileWriter outTextFile;
          private static FileImageInputStream inImageFile;
          private static FileImageOutputStream outImageFile;
          // Define copyText() method.
          public static void copyfile(String fromFile,String toFile) throws AccessControlException
            // Create files from canonical file names.
            file1 = new File(fromFile);
            file2 = new File(toFile);
            // Copy file(s).
            try
              // Define and initialize FileReader(s).
              inTextFile = new FileReader(file1);
              outTextFile = new FileWriter(file2);
              // Read character-by-character.
              while ((c = inTextFile.read()) != -1) {
                outTextFile.write(c); }
              // Close Stream(s).
              inTextFile.close();
              outTextFile.close(); }
            catch (IOException e) {
              System.out.println ("-------"); }
         // return 1;
      public static void main(String[] args){
                      switch(args.length){
                              case 0: System.out.println("File has not mentioned.");
                                              System.exit(0);
                              case 1: System.out.println("Destination file has not mentioned.");
                                              System.exit(0);
                              case 2: copyfile(args[0],args[1]);
                                              System.exit(0);
                              default : System.out.println("Multiple files are not allow.");
                                                System.exit(0);
};while i am executing this method i m getting error as
ORA-29531: NO METHOD COPYFILE IN CLASS FILECOPY
ORA-06512: AT "RMVER721.PROC_COPY_FILE", LINE 1could anyone help me

Looks like it is a matter of not quite the same namespace for String object.
I can get it to work by the java source containing:
          public static void copyfile(java.lang.String fromFile,java.lang.String toFile) throws AccessControlExceptionAnd the PL/SQL source:
NAME 'FileCopy.copyfile(java.lang.String,java.lang.String)'; // calling a java methodSeems like when you just use "String", then the namespace resolving in the java source is not the same as the namespace resolving in the PL/SQL?
Addendum:
You do not need to put java.lang.String in the java source, String will do (java.lang is by default "imported"?)
But in the PL/SQL source java.lang namespace prefix is needed - java.lang is not "imported" here.
Edited by: Kim Berg Hansen on Nov 23, 2011 1:07 PM

Calling a java loaded API from PL/SQL

HI,
I have a java program loaded in the Database.
For sake of clarity I am posting the java Program also.
package mypackage1;
public class WriteClob extends CLOB
public static void main(String[] args) {
Connection conn = null;
String url = null;
String user = null;
String password = null;
Properties props = new Properties();
String fileName = null;
String xml_test ="KINGSTON";
StringBuffer s_xml = new StringBuffer();
// PreparedStatement ps = null;
OraclePreparedStatement ps=null;
int ret_int=0;
props.put("user", "apps" );
props.put("password", "apps");
long len=0;
int temp;
ResultSet rs = null;
SimpleDateFormat fSDateFormat = null;
props.put("SetBigStringTryClob", "true");
long first=System.currentTimeMillis();
url = "jdbc:oracle:thin:@ap619sdb:4115:owf12dev";
user = "apps";
password = "apps";
try
DriverManager.registerDriver(new OracleDriver()); // Get the database connection
conn = DriverManager.getConnection( url, props );
long second=System.currentTimeMillis();
System.out.println("Time between conn. "+(second-first));
first=System.currentTimeMillis();
for (int i =0;i<1000;i++){
s_xml.append(xml_test);
second=System.currentTimeMillis();
System.out.println("Time between loop "+(second-first));
first=System.currentTimeMillis();
ps =(OraclePreparedStatement) conn.prepareStatement("insert into xml_clob_temp1 values(:1)");
ps.setString(1,s_xml.toString());
ps.executeUpdate();
second=System.currentTimeMillis();
System.out.println("Time between loop "+(second-first));
} catch(SQLException sqlexp){ sqlexp.printStackTrace(); }
Now i am trying to create a procedure to call this Java API.
create or replace package load_perf as
procedure WriteClob ;
end;
create or replace package body load_perf as
procedure WriteClob
is
language java name 'mypackage1.WriteClob.main(java.lang.String)';
end;
I have tried debugging this a lot and am not able to overcome this error while creating the procedure.
LINE/COL ERROR
3/1 PL/SQL: Item ignored
5/15 PLS-00311: the declaration of
"mypackage1.WriteClob.main(java.lang.String)" is incomplete or
malformed
I have earlier created Java APIs which have returned some value and have been able to load them in the DB and call through a PL/SQL function wrapper.
But I am unable to create a procedure for this.
I have tried all sorts of debugging but always am getting error around this.
Can someone Please take a look at this Pronblem.
Thanks In Advance,
Gaurav

A proper designed application in the database tier is far more scalable and performs better than using a separate middle tier for the application.
This should be self evident.
A middle tier requires more moving parts between the application and data. There now sits a network pipe between application and data. There are more software layers that slows down the interaction of the application with the data - more stuff that can go wrong. More stuff that needs to be maintained and configured and secured.
What's more, the database tier is a lot more scalable than the middle tier. Oracle Real Application Clusters. Oracle Parallel Processing. Oracle Shared Server. Etc.
These are robust and mature technologies.
One major fact that seems to be missed by so-called IS architects favouring a middle tier is that the middle tier cannot make a single database query or transaction go faster.
Scaling the middle tier is done by throwing more hardware at it. But not a single additional mid-tier h/w platform will make the database tier any faster. Will make the database tier scale.
Then there is also the issue of costs. A middle tier requires additional hardware. It requires support and maintenance agreements with the vendors. It requires middle tier software to be purchased. It requires a new set of skills to do middle tier development. It deals with different technology and different programming languages.
Why? How can this approach be sensible when:
- Oracle scales exceedingly well (and this scalability is not dependent on more h/w purchasing)
- Oracle deals with a single programming language (PL/SQL)
- Oracle supports high availability
- Oracle supports redudancy
- Oracle supports the complete application tier inside the database
If you have problems now leveraging Oracle (as an application tier), then you will have more problems when doing it a middle layer. Why?
Because the lack of experience/skill/knowledge required to make Oracle work for you, is not now suddenly negated and not needed when moving the application tier to Java.

How to uninstall Java 7 and install Java 6

I recently updated to OS X Lion 10.7.5, I have very important application that run Java 6, but the update removed Java 6 and the Java Preferences app and replaced it with Java 7, I am very unhapp with this and have searched online for nearly 4 hours for a fix to my problem. I just want Java 6 back, and no, I don't want to Archive and reinstall, and I don't want to pay $20 for Mountain Lion update. I want Java 6 back.

JordanLT wrote:
I recently updated to OS X Lion 10.7.5, I have very important application that run Java 6, but the update removed Java 6 and the Java Preferences app and replaced it with Java 7,
That's not really true. It removed the browser plugin and if you try to replace it you will be taken to Oracle for Java 7, but it's not clear what happens when you do that. Check in System Preferences for the Java preference pane and see what it says. Type "java -version" in Termina and see what it says. Does it replace all of Java 6, or just the plugin with Java 7.

Enum in java 5 to be replaced in java2

Similar Messages

Maybe you are looking for