OCA material needed plzzz help me

HI
I want to get OCA certification and i needed OCA material. Anybody help me in this regards?

AhmedDBA wrote:
Hi kamran,
I am asking 10g OCA material for DBA track. could u plzzz help me to get this material downloads in pdf formats and practice tests.
thanks
regards AhmedYour response and claim to be a DBA indicates a high (but not absolute) probability you are (or intend to be) a dishonourable cheat and to use breach of copyright material and unauthorized learning methods.
If you followed the links previously given you would have obtained information on authorized practice tests.
Location of all the required PDF's for 10g are here: [http://www.oracle.com/pls/db102/homepage], as you seem not to have been able to find that!

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Material Management Material Needed Please help!

Hi,
I am new to SAP, have a MS in mech engineering. I am taking some classes but the class does not have any PDF tutorial material. I am looking for a tutorial which has all the steps with Screen dumps for complete MM implementation.
I greatly appreciate all your help and am very happy I found this helpfull forum.
Best Regards
Veena
email;[email protected]

Hi Veena,
Best place to start will be the Help.sap.com link
You can do a search in SDN for any specific query that you come across. In addition the wiki has some good material and links.
Apart from all these there is always a plethora of information available online.
Best of Luck!
http://www.allsaplinks.com/index.html
http://www.ittoolbox.com/
http://www.sap-img.com/index.htm
http://www.easymarketplace.de/online-pdfs.php
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award points if helpful

Need some help understanding the way materialized views are applied through

Hi, I need some help understanding the way materialized views are applied through adpatch.
In patch 1, we have a mv with build mode immediate. When applying it PTS hang due to pool performance of mv refresh.
So we provide patch 2, with that mv build mode deferred, hoping it'll go through. But patch 2 hang too on the same mv.
How does this work? Is that because mv already exists in the database with build immediate, patch 2 will force it to refresh first before changing build mode? How to get over this?
Thanks,
Wei

Hi Hussein,
Thank you for the response.
Application release is 11.5.10.
Patch 1 is MSC11510: 8639586 ASCP ENGINE RUP#38 PATCH FOR 11.5.10 BRANCH
Patch 2 is MSC11510: 9001833 APCC MSC_PHUB_CUSTOMERS_MV WORKER IS STUCK ON "DB FILE SEQUENTIAL READ" 12 HOURS
The MV is APPS.MSC_PHUB_CUSTOMERS_MV
This happens at customer environment but not reproducable in our internal environment, as our testing data is much smaller.
Taking closer look in the logs, I saw actually when applying both patch 1 and patch 2, MV doesn't exist in the database. So seems my previous assumption is wrong. Still, strange that patch 2 contains only one file which is the MV.xdf, it took 7 hours and finally got killed.
-- patch 1 log
Materialized View Name is MSC_PHUB_CUSTOMERS_MV
Materialized View does not exist in the target database
Executing create Statement
Create Statement is
CREATE MATERIALIZED VIEW "APPS"."MSC_PHUB_CUSTOMERS_MV"
ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 10 MAXTRANS 255 LOGGING
STORAGE(INITIAL 4096 NEXT 131072 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 4 FREELIST GROUPS 4 BUFFER_POOL DEFAULT)
TABLESPACE "APPS_TS_SUMMARY"
BUILD IMMEDIATE
USING INDEX
REFRESH FORCE ON DEMAND
WITH ROWID USING DEFAULT LOCAL ROLLBACK SEGMENT
DISABLE QUERY REWRITE
AS select distinct
from
dual
AD Worker error:
The above program failed. See the error messages listed
above, if any, or see the log and output files for the program.
Time when worker failed: Tue Feb 02 2010 10:01:46
Manager says to quit.
-- patch 2 log
Materialized View Name is MSC_PHUB_CUSTOMERS_MV
Materialized View does not exist in the target database
Executing create Statement
Create Statement is
CREATE MATERIALIZED VIEW "APPS"."MSC_PHUB_CUSTOMERS_MV"
ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 10 MAXTRANS 255 LOGGING
STORAGE(INITIAL 4096 NEXT 131072 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 4 FREELIST GROUPS 4 BUFFER_POOL DEFAULT)
TABLESPACE "APPS_TS_SUMMARY"
BUILD DEFERRED
USING INDEX
REFRESH COMPLETE ON DEMAND
WITH ROWID USING DEFAULT LOCAL ROLLBACK SEGMENT
DISABLE QUERY REWRITE
AS select distinct
from dual
Start time for statement above is Tue Feb 02 10:05:06 GMT 2010
Exception occured ORA-00028: your session has been killed
ORA-00028: your session has been killed
ORA-06512: at "APPS.AD_MV", line 116
ORA-06512: at "APPS.AD_MV", line 258
ORA-06512: at line 1
java.sql.SQLException: ORA-00028: your session has been killed
ORA-00028: your session has been killed
ORA-06512: at "APPS.AD_MV", line 116
ORA-06512: at "APPS.AD_MV", line 258
ORA-06512: at line 1
Exception occured :No more data to read from socket
AD Run Java Command is complete.
Copyright (c) 2002 Oracle Corporation
Redwood Shores, California, USA
AD Java
Version 11.5.0
NOTE: You may not use this utility for custom development
unless you have written permission from Oracle Corporation.
AD Worker error:
The above program failed. See the error messages listed
above, if any, or see the log and output files for the program.
Time when worker failed: Tue Feb 02 2010 19:51:27
Start time for statement above is Tue Feb 02 12:44:52 GMT 2010
End time for statement above is Tue Feb 02 19:51:29 GMT 2010
Thanks,
Wei

Hi i need sum help plzzz, iphone 3gs blackscreen and tryed evrything but wont kick out of dfu mode , much apreicated plz

hi i need sum help plzzz, iphone 3gs blackscreen and tryed evrything but wont kick out of dfu mode , much apreicated plz, it just happen wen i was restoring the screen is balck but wen i restore it from itunes it says erorr 1600 and itunes does not reconise the phone , i have tryed eveything bt still no luck , I NEED UR HELP PLZZZ ,its my disabled daughters thank you

Anyone on this forum can correct me if I am wrong. I am not judging you, but to my knowledge the iTunes error 1600 usually affects products that are jailbroken. again I am not saying that your iPhone 3GS was jailbroken. my only advise off the top of my head to assist you is to download the recent IOS firmware online. I know it is not the the #1 advised option, but it is the only option you have unless you wish to bring it to the Apple Genius bar and see if they can replace the phone or fix it themselves.

Need Urget Help - Training Material Required

Hello,
I need urgent help.
We have started using OA Framework Personlizations and extending Oracle applications using OA framework.
I know there are two Oracle Training classes for the above courses.
If anyone has attended any classed for the above course and kind enough to share with me, i would be thankful to the person. If you have hard copy - i can arrange for next day mail for you to send me and i sending you back the training books. I will make photocopy and send you back ASAP by next day courier.
Please help as i really cannot afford to go for this class and these training books are really helpfull.
my email address is [email protected] with your reply or you can give reply on this post thread.
Thanks,
Mehta.

Try OAF Dev Guide. Its real good.
Thanks

I am getting CONNECTION TIMEOUT error in my macbook(10.7.4).plzzz help me

i am getting CONNECTION TIMEOUT error in my macbook(10.7.4).plzzz help me

Thank you very much, i guess it will be the remote servers.
Then i got this critical error on my local server
Automatic mail message send from usa12 for SID USA on Fri Dec 15 15:00:01 EST 2006
DONOT REPLY FOR THIS MESSAGE.....
Please check the follwing files ( will exist if there was an error )
/u01/app/oracle/admin/usa/bdump/alert_usa.log.121506.1500 ......
/u01/app/oracle/product/8.1.7/network/log/listener.log.121506.1500 .....
ORA-00600: internal error code, arguments: [17182], [27793076],
I know i need to contact oracle , when i went to Metalink ,i needed to run their RDA it is like diagnostic report script and include it before u send to them.
I needed some permissions from my Senior so i will do it on monday.
do you have any suggestions????

"Hi,I need a help something wrong happen with my ITunes ,during to the download progress,after few seconds is report ; U can not download,err" in Using iPad • 0 bookmarks

"Hi,I need a help something wrong happen with my ITunes ,during to the download progress,after few seconds is report ; U can not download,err"
in Using iPad •

It's better to post the URL of the feed (as you have subsequently done) than the contents of the feed .
From the FeedValidator report the feed is basically OK for iTunes. There are several occasions where 'content:encoded' sections (following immediately on 'guid' tags) should be enclosed in
<description>...</description>
tags: however all this will be ignored by iTunes anyway and only applies to other readers. The 'potentially dangerous content' referred to by FeedValidator is within the 'content:encoded' tags and so isn't relevant to iTunes. They are referring to an inline css style, and I don't know whether this might cause a problem elsewhere.
You should really have a language tag, e.g.
<language>en-us</language>
(you have a dc:language tag but that's for a different system). This should be placed in the top section, before the first 'item' tag.
It's advisable to have an 'itunes:explicit' tag for each 'item' -
<itunes:explicit>yes IF CONTAINS ADULT MATERIAL, OTHERWISE no</itunes:explicit>
it's not compulsory if you have no adult material, but you must have a 'yes' if you do.
You can check your feed by subscribing in iTunes from the 'Advanced' menu - this has the same result as clicking the 'Subscribe' button on the Store page. If it works OK there you are ready to submit it.

Basic Output program need some help...Please

import java.io.*;
class FileOutputDemo
public static void main(String args[])
int one=1, two=2, three=3;
     FileOutputStream out; // declare a file output object
     PrintStream p; // declare a print stream object
     try
          // Create a new file output stream
          // connected to "myfile.html"
          out = new FileOutputStream("myfile.html");
          // Connect print stream to the output stream
          p = new PrintStream( out );
          p.printf ("This is written to a file %d", one);
          p.close();
     catch (Exception e)
          System.err.println ("Error writing to file");
}Hello I am new to java, and I hope someone help me to modify the above code in order to make it work as the following:
I have a list of integer values like 1, 2, 3, 4? 10
And I want the program to substitute the integer values (the integer declared list) subsequently one by one to output a new html file as the following output:
This is written to a file 1
This is written to a file 2
This is written to a file3 ?etc
Also this substitution has to be outputted to a new file every time.
Thank you very much in advance for your kind help
if i have to post this anywhere else please advise me..
Adam

import java.io.*;
public class FileOutputDemo
    public static void main(String[] args) {
         FileOutputStream out; // declare a file output object
         PrintStream p; // declare a print stream object
         try
              // Create a new file output stream
              // connected to "myfile.html"
              out = new FileOutputStream("myfile.html");
              p = new PrintStream( out );
              int[] arrayOfInts = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
            for (int element : arrayOfInts)
                 p.printf (element + " ");
              p.close();
              // Connect print stream to the output stream
         catch (Exception e)
              System.err.println ("Error writing to file");
}ok .... guys i really understand what do you mean,
i only need your help to make the program print one integer at a time from the array to a seprate file ....what do you suggest ... any hints
Thanks

Remote App on iPad connects but drops after about 20 mins. Need to turn off wait about 1 minute then turn on wifi on iMac before it can reconnect. Need some help please.

Remote App on iPad connects but drops after about 20 mins. Need to turn off wait about 1 minute, then turn on wifi on iMac before it can reconnect. Need some help please.
Already gone through troubleshooting guide a zillion times. Thanks.

This worked for me... A little time consuming but once you get rolling it goes GREAT... Thanks....
I got my artwork and saved it to my Desktop
Opened up Microsoft Paint and clicked on "File" and "Open" and found it to get it on the screen to resize it
Clicked "resize" and a box for changing it opened up
Checked the box "Pixels" and "Unchecked maintain aspect ratio"
Set Horizontal for 640 and Vertical for 480
Clicked on "OK" and went back to "File" and did a "Save As" and chose JPEG Picture
It came up "File Already Existed" and clicked "OK" (really did not care about the original artwork I found because wrong size)
Went to iTunes and on the movie right clicked on "Get Info", clicked on "Details", then "Artwork"
Go to the little box on the top left that shows your old artwork and click on it to get the little blue border to appear around it and hit "Delete" to make it gone
Click on "Add Artwork" and find it where you put the one from above on your Desktop and hit "Open" and OK and your new artwork is now there and all good.
Sounds like a lot of steps to follow but after around 5 or so you will fly through it. This worked perfect on my iPhone 6 Plus and I have artwork on my Home Videos now.

Need your help in Remodeling concept

Hi Gurus need your help in time estimations
I have a cube with data and now I need to add 10 new info objects to the cube which are including Date fields (BUDAT, BLDAT) these 10 fields will be populated to the cube from a Z table in ECC as we donu2019t have these fields in the cube we have to go for remodeling of the cube
My client requires how much time it will take to complete this
Now I want to know how much time it would take to do this (if any customer exits and user exits are required) and addition if new fields will have any effect on the current queries
Please advice in this
Thank you

The time taken will depends on a lots of factor like server speed, available memory, background jobs etc. Apart from this, the time will also depends on how much the cube is filled i.e. the no. of records in the cube. Its very abstract to tell you the exact time taken for this. But, please make sure that you have the backup of the cube which you are going to re-model. T0 say, I think 3-4 hours should be ok for the remodelling.
Thanks.
Shambhu

Need your help on performance issue please

Hello everyone!
I need your help to understand an effect I notice with a Thread class I built. I currently work on enhancement of my application Playlist Editor (see http://www.lightdev.com/page74.htm) and a new release will be available soon.
Among other extensions the new release will have a title filter function which is based on audio data that is recursively read from ID3 tags of files found in a given root directory. The data collection is done by a CollectionThread class which reads into a data model class AudioDataModel and the entire process works fine, no problem with that.
However, when my application is started for the first time the CollectionThread runs approximately 3 minutes to collect data from approximately 4300 audio files on an Intel Pentium M 1,4 GHz, 512 MB RAM, Windows XP SP2. When the application is shut down and started again, it takes only a few seconds to do the same task for all subsequent launches.
I already tried to start the application with java option -Xms40m to increase initial heap size. This increases performance in general but the effect is still the same, i.e. first run lasts significantly longer than subsequent runs.
I also tried to build a pool mechanism which creates many empty objects in the data model and then releases them to contain the actual data at is being read in but this did not lead to better performance.
It must have to do with how Java (or Windows?) allocates and caches memory. I wonder whether there is a way to pre-allocate memory or if there are any other ideas to improve performance so that the process always only takes seconds instead of minutes?
I attach the key classes to this message. Any help or ideas is much appreciated!
Thanks a lot a best regards
Ulrich
PS: You can use the news subscription service at
http://www.lightdev.com/dynTemplate.php4?id=80&dynPage=subscribe.php4 to be informed when the new release of Playlist Editor is available.
All classes posted here do not need debugging, they already have proven to run error free. The classes are only posted for information for the interested reader - no need to go through all the stuff in detail - only if it interests you.
My application calls class CollectionThread wich is a subclass of InfoThread. CollectionThread recursively goes through a directory and file structure and stores found ID3 tag information in instances of class ID3v11Tag which in turn gets stored in one instance of class AudioDataModel. All classes are shown below.
This is the mentioned CollectionThread
* Light Development Playlist Editor
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.app.playlisteditor.data;
import com.lightdev.lib.util.InfoThread;
import java.io.File;
* A class to collect audio data from a given storage location.
* 
* <code>CollectionThread</code> uses ID3 tag information to gain data.
* 
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software as well as any licensing notes
* inside this documentation
* @version 1, October 13, 2004
public class CollectionThread extends InfoThread {
 * constructor
 * @param model AudioDataModel the data model to collect data to
public CollectionThread(AudioDataModel model) {
 this.model = model;
 * constructor, creates a new empty AudioDataModel
public CollectionThread() {
 this(new AudioDataModel());
 * set the data model to collect data to
 * @param model AudioDataModel the model to collect data to
public void setModel(AudioDataModel model) {
 this.model = model;
 * get the data model associated to this thread
 * @return AudioDataModel the data model
public AudioDataModel getModel() {
 return model;
 * set the directory to collect data from
 * @param rootDir File the directory to collect data from
public void setRootDirectory(File rootDir) {
 this.rootDir = rootDir;
 * do te actual work of this thread, i.e. iterate through a given directory
 * structure and collect audio data
 * @return boolean true, if work is left
protected boolean work() {
 boolean workIsLeft = true;
 maxValue = -1;
 filesProcessed = 0;
 if(getStatus() < STATUS_HALT_PENDING) {
 countElements(rootDir.listFiles());
 if(getStatus() < STATUS_HALT_PENDING) {
 workIsLeft = collect(rootDir.listFiles());
 return workIsLeft;
 * count the elements in a given file array including its subdirectories
 * @param files File[]
private void countElements(File[] files) {
 int i = 0;
 while (i < files.length && getStatus() < STATUS_HALT_PENDING) {
 File file = files;
if (file.isDirectory()) {
countElements(file.listFiles());
i++;
maxValue++;
* recursively read data into model
* @param files File[] the file array representing the content of a given directory
private boolean collect(File[] files) {
int i = 0;
while(i < files.length && getStatus() < STATUS_HALT_PENDING) {
File file = files[i];
if(file.isDirectory()) {
collect(file.listFiles());
else if(file.getName().toLowerCase().endsWith("mp3")) {
try {
model.addTrack(file);
catch(Exception e) {
fireThreadException(e);
i++;
filesProcessed++;
fireThreadProgress(filesProcessed);
return (i<files.length);
/** the directory to collect data from */
private File rootDir;
/** the data model to collect data to */
private AudioDataModel model;
/** the number of files this thread processed so far while it is running */
private long filesProcessed = 0;
This is class InfoThread
* Light Development Java Library
* Copyright (C) 2003, 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.util;
import java.util.Vector;
import java.util.Enumeration;
* Abstract class <code>InfoThread</class> implements a status and listener concept.
* An <code>InfoThread</code> object actively informs all objects registered as listeners about
* status changes, progress and possible exceptions. This way the status of a running
* thread does not require a polling mechanism to be monitored.
* 
* <code>InfoThread</code> implements the following working scheme
* 
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public abstract class InfoThread extends Thread {
 * construct an <code>InfoThread</code> object
 * This class is meant to be used when a <code>Thread</code> object is needed that actively
 * informs other objects about its status</code>. It is a good idea therefore to register
 * one or more listeners with instances of this class before doing anything
 * else.
 * @see addInfoThreadListener
public InfoThread() {
 * set the amount of time this thread shall idle after it is through with one
 * work cycle and before a next work cycle is started. This influences the time
 * other threads have for their work.
 * @param millis long the number of milliseconds to idle after one work cycle
public void setIdleMillis(long millis) {
 idleMillis = millis;
 * Causes this thread to begin execution; the Java Virtual Machine calls the <code>run</code>
 * method of this thread. Calls method <code>prepareThread</code> before calling
 * <code>run</code>.
 * @see run
 * @see prepareThread
public synchronized void start() {
 setStatus(STATUS_INITIALIZING);
 prepareThread();
 setStatus(STATUS_READY);
 super.start();
 * call method <code>start</code> instead of this method.
 * calling this method directly will lead to an exception
 * @see start
public void run() {
 //System.out.println("InfoThread.run");
 if (status == STATUS_READY) {
 boolean workIsLeft = true;
 setStatus(STATUS_RUNNING);
 while (status < STATUS_STOP_PENDING && workIsLeft) {
 if (status < STATUS_HALT_PENDING) {
 workIsLeft = work();
 if(!workIsLeft) {
 setStatus(STATUS_WORK_COMPLETE);
 if (status == STATUS_HALT_PENDING) {
 setStatus(STATUS_HALTED);
 else if (status == STATUS_STOP_PENDING) {
 setStatus(STATUS_STOPPED);
 else {
 try {
 sleep(idleMillis);
 catch (InterruptedException e) {
 fireThreadException(e);
 else {
 // error: Thread is not ready to run
 setStatus(STATUS_THREAD_FINISHED);
 * stop this thread. This will terminate the thread irrevokably. Use method
 * <code>haltThread</code> to pause a thread with the possiblity to resume work later.
 * @see haltThread
public void stopThread() {
 switch (status) {
 case STATUS_RUNNING:
 setStatus(STATUS_STOP_PENDING);
 break;
 case STATUS_HALT_PENDING:
 // exception: the thread already is about to halt
 break;
 case STATUS_STOP_PENDING:
 // exception: the thread already is about to stop
 break;
 default:
 // exception: a thread can not be stopped, when it is not running
 break;
 * halt this thread, i.e. pause working allowing to resume later
 * @see resumeThread
public void haltThread() {
 switch (status) {
 case STATUS_RUNNING:
 setStatus(STATUS_STOP_PENDING);
 break;
 case STATUS_HALT_PENDING:
 // exception: the thread already is about to halt
 break;
 case STATUS_STOP_PENDING:
 // exception: the thread already is about to stop
 break;
 default:
 // exception: a thread can not be halted, when it is not running
 break;
 * resume this thread, i.e. resume previously halted work
 * @see haltThread
public void resumeThread() {
 if(status == STATUS_HALTED || status == STATUS_HALT_PENDING) {
 setStatus(STATUS_RUNNING);
 else {
 // exception: only halted threads or threads that are about to halt can be resumed
 * this is the method to prepare a thread to run. It is not implemented in this abstract
 * class. Subclasses of <code>InfoThread</code> can implement this method to do anything
 * that might be required to put their thread into STATUS_READY. This method is called
 * automatically by method <code>start</code>. When implementing this method, it should
 * call method <code>fireThreadException</code> accordingly.
 * @see start
 * @see fireThreadException
protected void prepareThread() {
 // does nothing in this abstract class but might be needed in subclasses
 * this is the main activity method of this object. It is not implemented in this abstract
 * class. Subclasses of <code>InfoThread</code> must implement this method to do something
 * meaningful. When implementing this method, it should call methods
 * <code>fireThreadProgress</code> and <code>fireThreadException</code> accordingly.
 * @return boolean true, if work is left, false if not
 * @see fireThreadProgress
 * @see fireTreadException
protected abstract boolean work();
 * add an <code>InfoTreadListener</code> to this instance of <code>InfoThread</code>
 * @param l InfoThreadListener the listener to add
 * @see removeInfoThreadListener
public void addInfoThreadListener(InfoThreadListener l) {
 listeners.add(l);
 * remove an <code>InfoTreadListener</code> from this instance of <code>InfoThread</code>
 * @param l InfoThreadListener the listener to remove
public void removeInfoThreadListener(InfoThreadListener l) {
 listeners.remove(l);
 * notify all <code>InfoThreadListener</code>s of a status change
 * @param fromStatus int the status tis thread had before the change
 * @param toStatus int the status this thread has now
protected void fireThreadStatusChanged(int fromStatus, int toStatus) {
 Enumeration e = listeners.elements();
 while(e.hasMoreElements()) {
 Object l = e.nextElement();
 if(l instanceof InfoThreadListener) {
 ((InfoThreadListener) l).threadStatusChanged(this, fromStatus, toStatus);
 * notify all <code>InfoThreadListener</code>s of an exception in this thread
 * @param ex Exception the exception that occurred
protected void fireThreadException(Exception ex) {
 Enumeration e = listeners.elements();
 while(e.hasMoreElements()) {
 Object l = e.nextElement();
 if(l instanceof InfoThreadListener) {
 ((InfoThreadListener) l).threadException(this, ex);
 * notify all <code>InfoThreadListener</code>s of the progress of this thread
 * @param progressValue long a value indicating the current thread progress
protected void fireThreadProgress(long progressValue) {
 Enumeration e = listeners.elements();
 while(e.hasMoreElements()) {
 Object l = e.nextElement();
 if(l instanceof InfoThreadListener) {
 ((InfoThreadListener) l).threadProgress(this, progressValue, maxValue);
 * set the status of this thread and notify all listeners
 * @param newStatus int the status this thread is to be changed to
private void setStatus(int newStatus) {
 //System.out.println("InfoThread.setStatus oldStatus=" + status + ", newStatus=" + newStatus);
 int fromStatus = status;
 status = newStatus;
 fireThreadStatusChanged(fromStatus, newStatus);
 * get the current status of this thread
 * @return int the status
public int getStatus() {
 return status;
 * cleanup before actual destruction.
public void destroy() {
 //System.out.println("InfoThread.destroy");
 cleanup();
 super.destroy();
 * cleanup all references this thread maintains
private void cleanup() {
 //System.out.println("InfoThread.cleanup");
 listeners.removeAllElements();
 listeners = null;
/* ----------------------- class fields start ------------------------ */
/** storage for the objects this thread notifies about status changes and progress */
private Vector listeners = new Vector();
/** indicator for the status of this thread */
private int status = STATUS_NONE;
/** maximum value for threadProgress */
protected long maxValue = -1;
/** the idle time inside one work cycle in milliseconds */
protected long idleMillis = 1;
/* ----------------------- class fields end -------------------------- */
/* ----------------------- constants start --------------------------- */
/** constant value indicating that no status has been set so far */
public static final int STATUS_NONE = 0;
/** constant value indicating that the thread is currently initializing */
public static final int STATUS_INITIALIZING = 1;
/** constant value indicating that the thread is ready to run */
public static final int STATUS_READY = 2;
/** constant value indicating that the thread is running */
public static final int STATUS_RUNNING = 3;
/** constant value indicating that the thread is about to halt */
public static final int STATUS_HALT_PENDING = 4;
/** constant value indicating that the thread is halted */
public static final int STATUS_HALTED = 5;
/** constant value indicating that the work of this thread is complete */
public static final int STATUS_WORK_COMPLETE = 6;
/** constant value indicating that the thread is about to stop */
public static final int STATUS_STOP_PENDING = 7;
/** constant value indicating that the thread is stopped */
public static final int STATUS_STOPPED = 8;
/** constant value indicating that the thread is finished */
public static final int STATUS_THREAD_FINISHED = 9;
/* ----------------------- constants end --------------------------- */
}this is the InfoThreadListener interface
* Light Development Java Library
* Copyright (C) 2003, 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.util;
* An interface classes interested to receive events from objects
* of class <code>InfoThread</code> need to implement.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public interface InfoThreadListener {
 * method to receive a status change notification from a thread
 * @param thread InfoThread the thread which status changed
 * @param fromStatus int the status which the thread had before the change
 * @param toStatus int the status which the thread has now
public void threadStatusChanged(InfoThread thread, int fromStatus, int toStatus);
 * method to receive a notification about the progress of a thread
 * @param thread InfoThread the thread which notified about its progress
 * @param progressValue long the value (e.g. 10 if 100 percent completed, 20 of 1 million files processed, etc.)
public void threadProgress(InfoThread thread, long progressValue, long maxValue);
 * method to receive a notifiaction about the fact that an exception occurred in a thread
 * @param thread InfoThread the thread for which an exception occurred
 * @param e Exception the exception that occurred
public void threadException(InfoThread thread, Exception e);
}This is class AudioFileDescriptor
* Light Development Java Library
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.audio;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.io.Serializable;
import java.text.DecimalFormat;
* This class models characteristics of an audio file such as the absolute path
* of the file, its tag contents (if any) and the play duration, etc.
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public class AudioFileDescriptor implements Serializable, Comparable {
public AudioFileDescriptor(String absolutePath) throws FileNotFoundException, IOException {
 load(absolutePath);
public boolean equals(Object o) {
 if(o != null && o instanceof AudioFileDescriptor) {
 return ((AudioFileDescriptor) o).getAbsolutePath().equalsIgnoreCase(this.getAbsolutePath());
 else {
 return false;
public void load(String absolutePath) throws FileNotFoundException, IOException {
 this.absolutePath = absolutePath;
 RandomAccessFile rf = new RandomAccessFile(absolutePath, "r");
 if(id3v11Tag == null) {
 id3v11Tag = new ID3v11Tag(rf, false);
 else {
 id3v11Tag.readTag(rf, rf.length() - 128);
 rf.close();
public String getAbsolutePath() {
 return absolutePath;
public ID3v11Tag getID3v11Tag() {
 return id3v11Tag;
public void setID3v11Tag(ID3v11Tag tag) {
 this.id3v11Tag = tag;
public String toString() {
 DecimalFormat df = new DecimalFormat("00");
 return id3v11Tag.getArtist() + ", " + id3v11Tag.getAlbum() + " - " +
 df.format(id3v11Tag.getTrackNumber()) + " " + id3v11Tag.getTitle();
 * Compares this object with the specified object for order.
 * @param o the Object to be compared.
 * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
 * or greater than the specified object.
 * @todo Implement this java.lang.Comparable method
public int compareTo(Object o) {
 return toString().compareTo(o.toString());
private String absolutePath;
private ID3v11Tag id3v11Tag;
private transient long duration = -1;
private transient int type = TYPE_UNKNOWN;
public static final transient int TYPE_UNKNOWN = 0;
public static final transient int TYPE_MP3 = 1;
}This is class ID3V11Tag into which the data is actually stored
* Light Development Java Library
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.lib.audio;
import java.io.File;
import java.io.RandomAccessFile;
import java.io.IOException;
import java.io.Serializable;
import java.text.DecimalFormat;
* This class is a very simple implementation of an ID3v11Tag. It models an ID3 tag
* pretty much the same way as it is physically stored inside an audio file.
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software
* @version Version 1, October 13, 2004
public class ID3v11Tag implements Serializable, Comparable {
 * construct an ID3v11Tag and read tag content from a given file
 * This constructor can be used for cases where a RandomAccessFile has already
 * been opened and will be closed elsewhere
 * @param rf RandomAccessFile the open file to read from
 * @param isAtTagStartPos boolean true, if the file pointer is at the
 * position where the ID3 tag starts; when false, the pointer is positioned accordingly here
 * @throws IOException
public ID3v11Tag(RandomAccessFile rf, boolean isAtTagStartPos) throws IOException {
 if(isAtTagStartPos) {
 readTag(rf);
 else {
 readTag(rf, rf.length() - 128);
 * construct an ID3v11Tag and read tag content from a file at a given location
 * This constructor opens and closes the audio file for reading
 * @param absolutePath String the absolute path to the audio file to open
 * @throws IOException
public ID3v11Tag(String absolutePath) throws IOException {
 RandomAccessFile rf = new RandomAccessFile(absolutePath, "r");
 readTag(rf, rf.length() - 128);
 rf.close();
 * construct an ID3v11Tag and read tag content from a given file
 * This constructor opens and closes the audio file for reading
 * @param audioFile File the audio file to read from
 * @throws IOException
public ID3v11Tag(File audioFile) throws IOException {
 this(audioFile.getAbsolutePath());
 * get a string representation of this object
 * @return String
public String toString() {
 DecimalFormat df = new DecimalFormat("00");
 return getArtist() + ", " + getAlbum() + " - " + df.format(getTrackNumber()) + " " + getTitle();
 * position to file pointer and read the tag
 * @param rf RandomAccessFile the file to read from
 * @param jumpPos long the position to jump to (the tag start position)
 * @throws IOException
public void readTag(RandomAccessFile rf, long jumpPos) throws IOException {
 rf.seek(jumpPos);
 readTag(rf);
 * read the tag from a given file, assuming the file pointer to be at the tag start position
 * @param rf RandomAccessFile the file to read from
 * @throws IOException
public void readTag(RandomAccessFile rf) throws IOException {
 rf.read(tagBuf);
 if(tag.equalsIgnoreCase(new String(tagBuf))) {
 rf.read(title);
 rf.read(artist);
 rf.read(album);
 rf.read(year);
 rf.read(comment);
 rf.read(trackNo);
 rf.read(genre);
public String getTitle() {
 return new String(title).trim();
public String getArtist() {
 return new String(artist).trim();
public String getAlbum() {
 return new String(album).trim();
public String getYear() {
 return new String(year).trim();
public String getComment() {
 return new String(comment).trim();
public int getGenreId() {
 try {
 int id = new Byte(genre[0]).intValue();
 if(id < GENRE_ID_MIN || id > GENRE_ID_MAX) {
 return GENRE_ID_OTHER;
 else {
 return id;
 catch(Exception ex) {
 return GENRE_ID_OTHER;
public String getGenreName() {
 return genreNames[getGenreId()];
public int getTrackNumber() {
 try {
 return (int) trackNo[0];
 catch(Exception e) {
 return 0;
 * Compares this object with the specified object for order.
 * @param o the Object to be compared.
 * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
 *

Hi Franck,
thank you, mate. I did what you suggested (changed class attached) but that did not change the mentioned behaviour.
The first run is approximately 75 seconds with Java option -Xms40m and approx. double without, the second run and all subsequent runs are only 2-3 seconds each (!!!) even when terminating and re-starting the application between thread runs.
I'm pretty clueless about that, any more help on this anyone?
Thanks a lot and best regards
Ulrich
PS: BTW, I forgot to post the class that is filled with data by class CollectionThread, so here it is
* Light Development Playlist Editor
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.app.playlisteditor.data;
import java.io.File;
import com.lightdev.lib.audio.ID3v11Tag;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.IOException;
import java.io.Serializable;
import com.lightdev.lib.audio.AudioFileDescriptor;
import com.lightdev.lib.ui.SortListModel;
import java.util.Iterator;
* Storage model for audio data.
* 
* <code>AudioDataModel</code> can be used to store ID3 tag data collected from
* a directory with audio files to perform queries and reports on the found data.
* 
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software as well as any licensing notes
* inside this documentation
* @version 1, October 15, 2004
public class AudioDataModel extends SortListModel implements Serializable {
 * constructor
public AudioDataModel() {
 * add an audio track from a given audio file
 * This will attempt to read ID3 tag data from the file.
 * @param audioFile File the file to add audio data for
 * @throws IOException
public void addTrack(File audioFile) throws IOException {
 AudioFileDescriptor afd = new AudioFileDescriptor(audioFile.getAbsolutePath());
 if (!data.contains(afd)) {
 data.add(afd);
 * get all tracks for agiven combination of genre name, artist name and album name. Any of
 * the parameters may be null or AudioDataModel.FILTER_ALL
 * Ugly code, I know, but it simply hard codes all combinations of the the mentioned
 * parameters. Any more elegant implementations welcome.
 * @param genreName String a genre name to get tracks for
 * @param artistName String an artist name to get tracks for
 * @param albumName String an album name to get tracks for
 * @return SortListModel the found tracks in a list model
public SortListModel getTracks(String genreName, String artistName, String albumName) {
 SortListModel foundTracks = new SortListModel();
 Iterator e = data.iterator();
 while(e.hasNext()) {
 AudioFileDescriptor afd = (AudioFileDescriptor) e.next();
 ID3v11Tag tag = afd.getID3v11Tag();
 if(genreName == null || genreName.equalsIgnoreCase(FILTER_ALL)) {
 if(artistName == null || artistName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 else {
 if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getArtist().equalsIgnoreCase(artistName))
 foundTracks.add(afd);
 else {
 if (tag.getArtist().equalsIgnoreCase(artistName) &&
 tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 else {
 if(artistName == null || artistName.equalsIgnoreCase(FILTER_ALL)) {
 if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getGenreName().equalsIgnoreCase(genreName))
 foundTracks.add(afd);
 else {
 if (tag.getGenreName().equalsIgnoreCase(genreName) &&
 tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 else {
 if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
 if (tag.getGenreName().equalsIgnoreCase(genreName) &&
 tag.getArtist().equalsIgnoreCase(artistName))
 foundTracks.add(afd);
 else {
 if (tag.getGenreName().equalsIgnoreCase(genreName) &&
 tag.getArtist().equalsIgnoreCase(artistName) &&
 tag.getAlbum().equalsIgnoreCase(albumName))
 foundTracks.add(afd);
 foundTracks.sort();
 return foundTracks;
 * list all artists in this model
 * @return SortListModel
public SortListModel listArtists() {
 SortListModel artists = new SortListModel();
 artists.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String artistName = tag.getArtist();
 if (artists.indexOf(artistName) < 0) {
 artists.add(artistName);
 artists.sort();
 return artists;
 * list all artists in this model having titles belonging to a given genre
 * @param genreName String name of the genre artists are searched for
 * @return SortListModel
public SortListModel listArtists(String genreName) {
 SortListModel artists = new SortListModel();
 artists.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String artistName = tag.getArtist();
 String genre = tag.getGenreName();
 if (artists.indexOf(artistName) < 0 && genre.equalsIgnoreCase(genreName)) {
 artists.add(artistName);
 artists.sort();
 return artists;
 * list all genres in this model
 * @return SortListModel
public SortListModel listGenres() {
 SortListModel genres = new SortListModel();
 genres.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String genreName = tag.getGenreName();
 if (genres.indexOf(genreName) < 0) {
 genres.add(genreName);
 genres.sort();
 return genres;
 * list all albums in this model
 * @return SortListModel
public SortListModel listAlbums() {
 SortListModel albums = new SortListModel();
 albums.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String albumName = tag.getAlbum();
 if (albums.indexOf(albumName) < 0) {
 albums.add(albumName);
 albums.sort();
 return albums;
 * list all albums in this model having titles belonging to a given genre
 * @param genreName String name of the genre albums are searched for
 * @return SortListModel
public SortListModel listAlbums(String genreName) {
 SortListModel albums = new SortListModel();
 albums.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String albumName = tag.getAlbum();
 String genre = tag.getGenreName();
 if (albums.indexOf(albumName) < 0 && genre.equalsIgnoreCase(genreName)) {
 albums.add(albumName);
 albums.sort();
 return albums;
 * list all albums in this model having titles belonging to a given genre and artist
 * @param genreName String name of the genre albums are searched for
 * @param artistName String name of the artist albums are searched for
 * @return SortListModel
public SortListModel listAlbums(String genreName, String artistName) {
 SortListModel albums = new SortListModel();
 albums.add(FILTER_ALL);
 Iterator e = data.iterator();
 while (e.hasNext()) {
 ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
 String albumName = tag.getAlbum();
 String genre = tag.getGenreName();
 String artist = tag.getArtist();
 if(genreName == null || genreName.equalsIgnoreCase(FILTER_ALL)) {
 if (albums.indexOf(albumName) < 0 &&
 artist.equalsIgnoreCase(artistName))
 albums.add(albumName);
 else {
 if (albums.indexOf(albumName) < 0 &&
 genre.equalsIgnoreCase(genreName) &&
 artist.equalsIgnoreCase(artistName))
 albums.add(albumName);
 albums.sort();
 return albums;
 * get the number of audio tracks stored in this data model
 * @return int the number of tracks
public int getTrackCount() {
 return data.size();
/** constant to select all items of a given part */
public static final String FILTER_ALL = " all";
}...and here the changed CollectionThread now caching found File objects in a vector
* Light Development Playlist Editor
* Copyright (C) 2004 Ulrich Hilger
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package com.lightdev.app.playlisteditor.data;
import com.lightdev.lib.util.InfoThread;
import java.io.File;
import java.util.Vector;
import java.util.Enumeration;
* A class to collect audio data from a given storage location.
* 
* <code>CollectionThread</code> uses ID3 tag information to gain data.
* 
* See <a href="http://www.id3.org">http://www.id3.org</a> for details about
* ID3 tags.
* @author Ulrich Hilger
* @author Light Development
* @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
* @author <a href="mailto:[email protected]">[email protected]</a>
* @author published under the terms and conditions of the
* GNU General Public License,
* for details see file gpl.txt in the distribution
* package of this software as well as any licensing notes
* inside this documentation
* @version 1, October 13, 2004
public class CollectionThread extends InfoThread {
 * constructor
 * @param model AudioDataModel the data model to collect data to
public CollectionThread(AudioDataModel model) {
 this.model = model;
 * constructor, creates a new empty AudioDataModel
public CollectionThread() {
 this(new AudioDataModel());
 * set the data model to collect data to
 * @param model AudioDataModel the model to collect data to
public void setModel(AudioDataModel model) {
 this.model = model;
 * get the data model associated to this thread
 * @return AudioDataModel the data model
public AudioDataModel getModel() {
 return model;
 * set the directory to collect data from
 * @param rootDir File the directory to collect data from
public void setRootDirectory(File rootDir) {
 this.rootDir = rootDir;
 * this is the method to prepare a thread to run.
protected void prepareThread() {
 maxValue = -1;
 filesProcessed = 0;
 innerCount = 0;
 fileList = new Vector();
 * do the actual work of this thread, i.e. iterate through a given directory
 * structure and collect audio data
 * @return boolean true, if work is left
protected boolean work() {
 boolean workIsLeft = true;
 if(getStatus() < STATUS_HALT_PENDING) {
 countElements(rootDir.listFiles());
 if(getStatus() < STATUS_HALT_PENDING) {
 workIsLeft = collect(); //collect(rootDir.listFiles());
 fileList.clear();
 fileList = null;
 return workIsLeft;
 * count the elements in a given file array including its subdirectories
 * @param files File[]
private void countElements(File[] files) {
 int i = 0;
 while (i < files.length && getStatus() < STATUS_HALT_PENDING) {
 File file = files;
if (file.isDirectory()) {
countElements(file.listFiles());
else {
fileList.add(file);
i++;
maxValue++;
* read data into model
* @param files File[] the file array representing the content of a given directory
* @return boolean true, if work is left
private boolean collect(/*File[] files*/) {
Enumeration files = fileList.elements();
while(files.hasMoreElements() && getStatus() < STATUS_HALT_PENDING) {
File file = (File) files.nextElement();
try {
model.addTrack(file);
catch(Exception e) {
fireThreadException(e);
filesProcessed++;
if(++innerCount > 99) {
innerCount = 0;
fireThreadProgress(filesProcessed);
return false;
int i = 0;
while(i < files.length && getStatus() < STATUS_HALT_PENDING) {
File file = files[i];
if(file.isDirectory()) {
collect(file.listFiles());
else if(file.getName().toLowerCase().endsWith("mp3")) {
try {
model.addTrack(file);
catch(Exception e) {
fireThreadException(e);
i++;
filesProcessed++;
fireThreadProgress(filesProcessed);
return (i<files.length);
/** the directory to collect data from */
private File rootDir;
/** the data model to collect data to */
private AudioDataModel model;
/** the number of files this thread processed so far while it is running */
private long filesProcessed = 0;
/** a list to temporary store found files */
private Vector fileList;
/** counter to determine when to fire progress messages */
private int innerCount = 0;

TS1702 I need some help the apps were downloading slowly

The apps downloaded but it didn't cause it's stuck in downloading mode what should I do?
The iOS 6 update didn't work.
Please I need some help.
The apps didn't download.
Talking Angela and Ginger didn't download.
Talking Santa didn't update.

Try moving the existing backup file to a safe location so that iTunes has to create an entire new file. The backup file is located here. You can delete that backup once you get a successfull backup.
iTunes places the backup files in the following places:
Mac: ~/Library/Application Support/MobileSync/Backup/
Windows XP: \Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\
Windows Vista and Windows 7: \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\
Note: If you do not see the AppData or Application Data folders, you may need to show hidden files (Windows XP, Windows Vista and Windows 7), or iTunes may not be installed in the default location. Show hidden files and then search the hard drive for the Backup directory.

I'm suddenly in need of help with my Firefox browser (6.0.2)

Hi there,
I'm suddenly in need of help with my Firefox browser (6.0.2)
(OS: I use Windows XP).
When I open up the browser, all I see is a completely blank white screen, with all the toolbars at the top.
I know that my physical connections are fine: I've tested the modem, turned the pc off and on etc. and I can also receive/send emails.
This problem started today, 8th September, 2011 and has never happened before.
Is it a coincidence that Firefox updated itself just before I logged off yesterday evening? Could it be something to do with this particular new update?
I've also noted that just before I "open up" Firefox, I now get a small box saying:
[JAVASCRIPT APPLICATION]
Exc In Ev handl: TypeError: This oRoot.enable is not a function
This has never appeared before - I hope it offers a clue a to what is wrong.
The Browser is not stuck in Safe Mode, by the way.
Obviously, I can't search for any solutions to the problem on the internet, as I can't physically see any websites!
(A friend is sending this query on my behalf from their pc)
Any light you could throw on this confusing problem would be much appreciated. I'd rather not have to uninstall and reinstall Firefox if possible.
If the only option is to uninstall Firefox and reinstall it from your site, then I'm also in trouble (I can't see the internet or make any downloads).
In that case, would you be able to send the .exe file as an attachment to my email address? If so, please let me know and I'll give you further details.
Many thanks in advance.

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
* https://support.mozilla.com/kb/Server+not+found
* https://support.mozilla.com/kb/Firewalls
Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

I need your help with a decision to use iPhoto. I have been a PC user since the mid 1980's and more recently have used ACDSee to manage my photo images and Photoshop to edit them. I have used ProShow Gold to create slideshows. I am comfortable with my

I need your help with a decision to use iPhoto. I have been a PC user since the mid 1980’s and more recently have used ACDSee to manage my photo images and Photoshop to edit them. I have used ProShow Gold to create slideshows. I am comfortable with my own folder and file naming conventions. I currently have over 23,000 images of which around 60% are scans going back 75 years. Since I keep a copy of the originals, the storage requirements for over 46,000 images is huge. 180GB plus.
I now have a Macbook Pro and will add an iMac when the new models arrive. For my photos, I want to stay with Photoshop which also gives me the Bridge. The only obvious reason to use iPhoto is to take advantage of Faces and the link to iMovie to make slideshows. What am I missing and is using iPhoto worth the effort?
If I choose to use iPhoto, I am not certain whether I need to load the originals and the edited versions. I suspect that just the latter is sufficient. If I set PhotoShop as my external editor, I presume that iPhoto will keep track of all changes moving forward. However, over 23,000 images in iPhoto makes me twitchy and they are appear hidden within iPhoto. In the past, I have experienced syncing problems with, and database errors in, large databases. If I break up the images into a number of projects, I loose the value of Faces reaching back over time.
Some guidance and insight would be appreciated. I have a number of Faces questions which I will save for later.

Bridge and Photoshop is a common file-based management system. (Not sure why you'd have used ACDSEE as well as Bridge.) In any event, it's on the way out. You won't be using it in 5 years time.
Up to this the lack of processing power on your computer left no choice but to organise this way. But file based organisation is as sensible as organising a Shoe Warehouse based on the colour of the boxes. It's also ultimately data-destructive.
Modern systems are Database driven. Files are managed, Images imported, virtual versions, lossless processing and unlimited editing are the way forward.
For a Photographer Photoshop is overkill. It's an enormously powerful app, a staple of the Graphic Designers' trade. A Photographer uses maybe 15% to 20% of its capability.
Apps like iPhoto, Lightroom, Aperture are the way forward - for photographers. There's the 20% of Photoshop that shooters actually use, coupled with management and lossless processing. Pop over to the Aperture or Lightroom forums (on the Adobe site) and one comment shows up over and over again... "Since I started using Aperture/ Lightroom I hardly ever use Photoshop any more..." and if there is a job that these apps can do, then the (much) cheaper Elements will do it.
The change is not easy though, especially if you have a long-standing and well thought out filing system of your own. The first thing I would strongly advise is that you experiment before making any decisions. So I would create a Library, import 300 or 400 shots and play. You might as well do this in iPhoto to begin with - though if you’re a serious hobbyist or a Pro then you'll find yourself looking further afield pretty soon. iPhoto is good for the family snapper, taking shots at birthdays and sharing them with friends and family.
Next: If you're going to successfully use these apps you need to make a leap: Your files are not your Photos.
The illustration I use is as follows: In my iTunes Library I have a file called 'Let_it_Be_The_Beatles.mp3'. So what is that, exactly? It's not the song. The Beatles never wrote an mp3. They wrote a tune and lyrics. They recorded it and a copy of that recording is stored in the mp3 file. So the file is just a container for the recording. That container is designed in a specific way attuned to the characteristics and requirements of the data. Hence, mp3.
Similarly, that Jpeg is not your photo, it's a container designed to hold that kind of data. iPhoto is all about the data and not about the container. So, regardless of where you choose to store the file, iPhoto will manage the photo, edit the photo, add metadata to the Photo but never touch the file. If you choose to export - unless you specifically choose to export the original - iPhoto will export the Photo into a new container - a new file containing the photo.
When you process an image in iPhoto the file is never touched, instead your decisions are recorded in the database. When you view the image then the Master is presented with these decisions applied to it. That's why it's lossless. You can also have multiple versions and waste no disk space because they are all just listings in the database.
These apps replace the Finder (File Browser) for managing your Photos. They become the Go-To app for anything to do with your photos. They replace Bridge too as they become a front-end for Photoshop.
So, want to use a photo for something - Export it. Choose the format, size and quality you want and there it is. If you're emailing, uploading to websites then these apps have a "good enough for most things" version called the Preview - this will be missing some metadata.
So it's a big change from a file-based to Photo-based management, from editing files to processing Photos and it's worth thinking it through before you decide.

Letter/report generation...morgalr, i need your help!!

may i know the details or some sample source code of how to generate the html and import it to MS Word...i need your help urgently...may i have your email to contact u?.....please help, it is urgent!!!

You need not use an applet to write an HTML file, any application file will do fine, actually applications may be prefered due to system security and file creation. Basically the html files are just text files using HTML. Look at any book on HTML and you will be able to get the style and form down along with the syntax.
As for calling MS word, do a search on the web for a product called JPrint. It is done by a company called Neva and they also have a product called "coroutine". It is coroutine that you want. Coroutine is a native level interface for Java to Comm. The docs that come with coroutine should be saficient to get you going on the project.

OCA material needed plzzz help me

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