Is it possible to ignore some events, while executing some code?

The problem is following: imagine the interface, consisting of three buttons - start, stop, save and one graph indicator. When one press start button some sequence of events is fired, and some data is shown on the graph (this sequence can be prolonged in time for a few hours). After completion of sequence one can save data. All is good except one thing: what will happen if start button have been pressed while execution? Start sequence will be fired again and previously acquired data will be lost. So the question is following: is it possible to erase (or ignore) some events from events stack?
Locking front panel is not good idea, because some other controls (for example stop) might be needed.
Making start
button disabled and grayed out is not good idea because user can click on that button (thus generate events) a lot of times before the disabling will occur.
Creation of data buffer for storing graphs is not good idea as well because it do not solves the problem.
www.xinstruments.com
Custom Software for Industrial Automation
www.hdrconverter.com
Picture processing made easy

In newer version of LabVIEW, you can use dynamic event registration. What is your version?
I would add e.g. a shift registers that keeps track of the state, then you can query it in each event case. Each event case will have a case structure inside wired to the state. States could be (0: new, 1: data has bee acquired, 2: all is saved, etc.). "Start" would only work if state is 0 or 2, "save" would only work if state is 1, etc.
LabVIEW Champion . Do more with less code and in less time .

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Hello BW experts ,
We are getting the 'Time Our Error while executing some BW reports.'
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regards,
Amol.

hi Amol,
it may query performance problem,
try to execute from RSRT,
and click 'properties' from rsrt and try to set read mode = H query to read ... navigate or expand hierarchy
and cache mode = 1.
take a look following
oss note
557870 'FAQ BW Query Performance'
and 567746 'Composite note BW 3.x performance Query and Web'.
Prakash's weblog
/people/prakash.darji/blog/2006/01/27/query-creation-checklist
/people/prakash.darji/blog/2006/01/26/query-optimization
BW Performance Tuning Knowledge Center - SAP Developer Network (SDN)
Business Intelligence Performance Tuning [original link is broken]
performance docs on query
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3f66ba90-0201-0010-ac8d-b61d8fd9abe9
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cccad390-0201-0010-5093-fd9ec8157802
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Hi Guru's,
I am getting "Client not modifiable message while executing t-code ops7 and ops6" in Unit test and Quality client.
Pleae help me to resolve the error.
Regards
Sasikanth Reddy

Hi
Copy of the information I found regarding this issue:
It is possible to allow the maintenance of 'Customizing'-tables in a
production client, even if the client is set to 'not modifiable'.
Normally this should be the case for tables TCJ04 (responsible person)
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Transaction SE11:
Table TCJ04: delivery class should be set to 'C'
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Position on V_TCJ04: Category should be 'CUST' field 'current settings'
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Hi
I had the same problem.
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RSECADMVAL:   *
ACTVT:                16
Hope it will solved your problem.
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Connection to OBI Sever is lost while executing some Pivot tables.

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Wheneever i try to execute some Pivot tables (not all) ,the conncection to OBI Server is lost and throwing the following error:
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Please help me out.
And some times cube governer limit exceeded eventhough i increased the limit in the config file.
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ABAP runtime error while executing T.code : PC00_M40_CALC

Hi,
I have applied SAP note 1568264 - Budget Changes 2011 as released by
SAP and i also applied the pre-requiste SAP notes mentioned in the
above SAP note
1) SAP Note 1558475- Amendments to IT calculation notified under
circular:08/2010.
2) SAP Note 1572614- Tax calculations inconsistent for emp. without a
vaild PAN.
3) SAP Note 1575366- HINCALC0:Tax calculation inconsistent in case of
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After applying the SAP notes, when i am trying to execute the T.Code :
PC00_M40_CALC, i am getting an "Abap runtime error"
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The following syntax error occurred in program "HINCALC0 " in include "PCTAXIN0
" in
line 905:
""ENDUZ-" expected, not "EDU_""
The include has been created and last changed by:
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Last changed by: "S2K_BASIS "
Error in the ABAP Application Program
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The dump error is generally encountered if your system is at a lower Support Pack level. For implementing Note 1568264 (Budget Changes 2011), you need to be at the below mentioned pre-requisite level corresponding to your Release:
Prerequisites:
   Release     Support Package
     604         HRSP29
     600         HRSP63
     500         HRSP80
     470         HRSPB4
     46C         HRSPG9
The correct sequence to implement the Notes is:
SAP Note 1558475- Amendments to IT calculation notified under
circular:08/2010.
SAP Note 1572614- Tax calculations inconsistent for emp. without a
vaild PAN.
SAP Note 1575366- HINCALC0:Tax calculation inconsistent in case of
invalid PAN.
SAP Note 1568264- Budget Changes 2011
This should solve the issue unless there is some problem while implementing the Notes.
Regards,
Nishtha

While executing T.code F.5D system give"doc splitting is active in compcode

Dear Team,
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While executing F.5D, F.5E system throws an message "Document splitting is active for company code XXXX".
In order to execute these transactions how can i move ahead?
Please reply its needed.
Thanks & regards,
Sandeep Jain

hi sandeep,
The system must have 'document split' functionality activated.
Document split functionality replaced SAPF180* programs, so these
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code.
For more information about the NewGL and document splitting, please
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Reg
Madhu M

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hi,
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error message as follows:-
YOU ARE NOT AUTHORISED TO EXECUTE PROGRAM SAPLMEPO
PLEASE SUGGEST SOME SOLUTIONS TO IT.

Hi,
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Hi
I copied the code from [http://java.sun.com/javafx/1/tutorials/ui/overview/UIControls.fx|http://java.sun.com/javafx/1/tutorials/ui/overview/UIControls.fx] while
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init:
deps-jar:
compile:
jar:
standard-run:
# An unexpected error has been detected by Java Runtime Environment:
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# Java VM: Java HotSpot(TM) Client VM (1.6.0_03-b05 mixed mode, sharing)
# Problematic frame:
# V [jvm.dll+0xd513f]
# An error report file with more information is saved as hs_err_pid5152.log
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
BUILD FAILED (total time: 18 seconds)can anyone tell whether its netbeans fault or javaFX. I am using netbeans 6.5.1 on windows vista. I have added following plugin in netbeans for javaFX
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is anyone also getting this error for this code and have solution for this.

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import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.ToggleButton;
import javafx.scene.control.ProgressBar;
var toggle=ToggleButton {
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                translateY:50
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var progress= ProgressBar {
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Stage {
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Problem While Executing T.CODE DP90

Hi,
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We are facing following problem while executing Resource Related Billing request
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Process.
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Hi Prashanth,
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Thanks
KRISH

Hi All
I am executing the custom report in foreground mode ALV output showing all columns for that same report I am executing in background mode some of the ALV output columns are missed out
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Problem while executing the code( that covert jpeg images to movie)

http://java.sun.com/products/java-media/jmf/2.1.1/solutions/JpegImagesToMovie.html
here is the code:
* @(#)JpegImagesToMovie.java     1.3 01/03/13
* Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
import java.io.*;
import java.util.*;
import java.awt.Dimension;
import javax.media.*;
import javax.media.control.*;
import javax.media.protocol.*;
import javax.media.protocol.DataSource;
import javax.media.datasink.*;
import javax.media.format.VideoFormat;
* This program takes a list of JPEG image files and convert them into
* a QuickTime movie.
public class JpegImagesToMovie3 implements ControllerListener, DataSinkListener {
public boolean doIt(int width, int height, int frameRate, Vector inFiles, MediaLocator outML) {
     ImageDataSource ids = new ImageDataSource(width, height, frameRate, inFiles);
     Processor p;
     try {
     System.err.println("- create processor for the image datasource ...");
     p = Manager.createProcessor(ids);
     } catch (Exception e) {
     System.err.println("Yikes! Cannot create a processor from the data source.");
     return false;
     p.addControllerListener(this);
     // Put the Processor into configured state so we can set
     // some processing options on the processor.
     p.configure();
     if (!waitForState(p, p.Configured)) {
     System.err.println("Failed to configure the processor.");
     return false;
     // Set the output content descriptor to QuickTime.
     p.setContentDescriptor(new ContentDescriptor(FileTypeDescriptor.QUICKTIME));
     // Query for the processor for supported formats.
     // Then set it on the processor.
     TrackControl tcs[] = p.getTrackControls();
     Format f[] = tcs[0].getSupportedFormats();
     if (f == null || f.length <= 0) {
     System.err.println("The mux does not support the input format: " + tcs[0].getFormat());
     return false;
     tcs[0].setFormat(f[0]);
     System.err.println("Setting the track format to: " + f[0]);
     // We are done with programming the processor. Let's just
     // realize it.
     p.realize();
     if (!waitForState(p, p.Realized)) {
     System.err.println("Failed to realize the processor.");
     return false;
     // Now, we'll need to create a DataSink.
     DataSink dsink;
     if ((dsink = createDataSink(p, outML)) == null) {
     System.err.println("Failed to create a DataSink for the given output MediaLocator: " + outML);
     return false;
     dsink.addDataSinkListener(this);
     fileDone = false;
     System.err.println("start processing...");
     // OK, we can now start the actual transcoding.
     try {
     p.start();
     dsink.start();
     } catch (IOException e) {
     System.err.println("IO error during processing");
     return false;
     // Wait for EndOfStream event.
     waitForFileDone();
     // Cleanup.
     try {
     dsink.close();
     } catch (Exception e) {}
     p.removeControllerListener(this);
     System.err.println("...done processing.");
     return true;
* Create the DataSink.
DataSink createDataSink(Processor p, MediaLocator outML) {
     DataSource ds;
     if ((ds = p.getDataOutput()) == null) {
     System.err.println("Something is really wrong: the processor does not have an output DataSource");
     return null;
     DataSink dsink;
     try {
     System.err.println("- create DataSink for: " + outML);
     dsink = Manager.createDataSink(ds, outML);
     dsink.open();
     } catch (Exception e) {
     System.err.println("Cannot create the DataSink: " + e);
     return null;
     return dsink;
Object waitSync = new Object();
boolean stateTransitionOK = true;
* Block until the processor has transitioned to the given state.
* Return false if the transition failed.
boolean waitForState(Processor p, int state) {
     synchronized (waitSync) {
     try {
          while (p.getState() < state && stateTransitionOK)
          waitSync.wait();
     } catch (Exception e) {}
     return stateTransitionOK;
* Controller Listener.
public void controllerUpdate(ControllerEvent evt) {
     if (evt instanceof ConfigureCompleteEvent ||
     evt instanceof RealizeCompleteEvent ||
     evt instanceof PrefetchCompleteEvent) {
     synchronized (waitSync) {
          stateTransitionOK = true;
          waitSync.notifyAll();
     } else if (evt instanceof ResourceUnavailableEvent) {
     synchronized (waitSync) {
          stateTransitionOK = false;
          waitSync.notifyAll();
     } else if (evt instanceof EndOfMediaEvent) {
     evt.getSourceController().stop();
     evt.getSourceController().close();
Object waitFileSync = new Object();
boolean fileDone = false;
boolean fileSuccess = true;
* Block until file writing is done.
boolean waitForFileDone() {
     synchronized (waitFileSync) {
     try {
          while (!fileDone)
          waitFileSync.wait();
     } catch (Exception e) {}
     return fileSuccess;
* Event handler for the file writer.
public void dataSinkUpdate(DataSinkEvent evt) {
     if (evt instanceof EndOfStreamEvent) {
     synchronized (waitFileSync) {
          fileDone = true;
          waitFileSync.notifyAll();
     } else if (evt instanceof DataSinkErrorEvent) {
     synchronized (waitFileSync) {
          fileDone = true;
          fileSuccess = false;
          waitFileSync.notifyAll();
public static void main(String args[]) {
     if (args.length == 0)
     prUsage();
     // Parse the arguments.
     int i = 0;
     int width = -1, height = -1, frameRate = 1;
     Vector inputFiles = new Vector();
     String outputURL = null;
     while (i < args.length) {
     if (args.equals("-w")) {
          i++;
          if (i >= args.length)
          prUsage();
          width = new Integer(args[i]).intValue();
     } else if (args[i].equals("-h")) {
          i++;
          if (i >= args.length)
          prUsage();
          height = new Integer(args[i]).intValue();
     } else if (args[i].equals("-f")) {
          i++;
          if (i >= args.length)
          prUsage();
          frameRate = new Integer(args[i]).intValue();
     } else if (args[i].equals("-o")) {
          i++;
          if (i >= args.length)
          prUsage();
          outputURL = args[i];
     } else {
          inputFiles.addElement(args[i]);
     i++;
     if (outputURL == null || inputFiles.size() == 0)
     prUsage();
     // Check for output file extension.
     if (!outputURL.endsWith(".mov") && !outputURL.endsWith(".MOV")) {
     System.err.println("The output file extension should end with a .mov extension");
     prUsage();
     if (width < 0 || height < 0) {
     System.err.println("Please specify the correct image size.");
     prUsage();
     // Check the frame rate.
     if (frameRate < 1)
     frameRate = 1;
     // Generate the output media locators.
     MediaLocator oml;
     if ((oml = createMediaLocator(outputURL)) == null) {
     System.err.println("Cannot build media locator from: " + outputURL);
     System.exit(0);
     JpegImagesToMovie3 imageToMovie3 = new JpegImagesToMovie3();
     imageToMovie3.doIt(width, height, frameRate, inputFiles, oml);
     System.exit(0);
static void prUsage() {
     System.err.println("Usage: java JpegImagesToMovie -w <width> -h <height> -f <frame rate> -o <output URL> <input JPEG file 1> <input JPEG file 2> ...");
     System.exit(-1);
* Create a media locator from the given string.
static MediaLocator createMediaLocator(String url) {
     MediaLocator ml;
     if (url.indexOf(":") > 0 && (ml = new MediaLocator(url)) != null)
     return ml;
     if (url.startsWith(File.separator)) {
     if ((ml = new MediaLocator("file:" + url)) != null)
          return ml;
     } else {
     String file = "file:" + System.getProperty("user.dir") + File.separator + url;
     if ((ml = new MediaLocator(file)) != null)
          return ml;
     return null;
// Inner classes.
* A DataSource to read from a list of JPEG image files and
* turn that into a stream of JMF buffers.
* The DataSource is not seekable or positionable.
class ImageDataSource extends PullBufferDataSource {
     ImageSourceStream streams[];
     ImageDataSource(int width, int height, int frameRate, Vector images) {
     streams = new ImageSourceStream[1];
     streams[0] = new ImageSourceStream(width, height, frameRate, images);
     public void setLocator(MediaLocator source) {
     public MediaLocator getLocator() {
     return null;
     * Content type is of RAW since we are sending buffers of video
     * frames without a container format.
     public String getContentType() {
     return ContentDescriptor.RAW;
     public void connect() {
     public void disconnect() {
     public void start() {
     public void stop() {
     * Return the ImageSourceStreams.
     public PullBufferStream[] getStreams() {
     return streams;
     * We could have derived the duration from the number of
     * frames and frame rate. But for the purpose of this program,
     * it's not necessary.
     public Time getDuration() {
     return DURATION_UNKNOWN;
     public Object[] getControls() {
     return new Object[0];
     public Object getControl(String type) {
     return null;
* The source stream to go along with ImageDataSource.
class ImageSourceStream implements PullBufferStream {
     Vector images;
     int width, height;
     VideoFormat format;
     int nextImage = 0;     // index of the next image to be read.
     boolean ended = false;
     public ImageSourceStream(int width, int height, int frameRate, Vector images) {
     this.width = width;
     this.height = height;
     this.images = images;
     format = new VideoFormat(VideoFormat.JPEG,
                    new Dimension(width, height),
                    Format.NOT_SPECIFIED,
                    Format.byteArray,
                    (float)frameRate);
     * We should never need to block assuming data are read from files.
     public boolean willReadBlock() {
     return false;
     * This is called from the Processor to read a frame worth
     * of video data.
     public void read(Buffer buf) throws IOException {
     // Check if we've finished all the frames.
     if (nextImage >= images.size()) {
          // We are done. Set EndOfMedia.
          System.err.println("Done reading all images.");
          buf.setEOM(true);
          buf.setOffset(0);
          buf.setLength(0);
          ended = true;
          return;
     String imageFile = (String)images.elementAt(nextImage);
     nextImage++;
     System.err.println(" - reading image file: " + imageFile);
     // Open a random access file for the next image.
     RandomAccessFile raFile;
     raFile = new RandomAccessFile(imageFile, "r");
     byte data[] = null;
     // Check the input buffer type & size.
     if (buf.getData() instanceof byte[])
          data = (byte[])buf.getData();
     // Check to see the given buffer is big enough for the frame.
     if (data == null || data.length < raFile.length()) {
          data = new byte[(int)raFile.length()];
          buf.setData(data);
     // Read the entire JPEG image from the file.
     raFile.readFully(data, 0, (int)raFile.length());
     System.err.println(" read " + raFile.length() + " bytes.");
     buf.setOffset(0);
     buf.setLength((int)raFile.length());
     buf.setFormat(format);
     buf.setFlags(buf.getFlags() | buf.FLAG_KEY_FRAME);
     // Close the random access file.
     raFile.close();
     * Return the format of each video frame. That will be JPEG.
     public Format getFormat() {
     return format;
     public ContentDescriptor getContentDescriptor() {
     return new ContentDescriptor(ContentDescriptor.RAW);
     public long getContentLength() {
     return 0;
     public boolean endOfStream() {
     return ended;
     public Object[] getControls() {
     return new Object[0];
     public Object getControl(String type) {
     return null;
on executing with the command:
java JpegImagesToMovie -w <width> -h <height> -f <frame rate per sec.> -o <output URL> <input JPEG file 1> <input JPEG file 2> ...
comes this......
Exception in thread"JMF thread:SendEventQueue:com.sun.media.processor.unknown Handler" java.lang.NullPointerException"
plz help

Don't forget to use the "Code Formatting Tags",
see http://forum.java.sun.com/help.jspa?sec=formatting,
so the posted code retains its original formatting.

Error while executing the code as sys user

Hi,
Below is the code that creates a procedure. Though the proc gets created successfully, while trying to execute it, I get the below error
ORA-01031: insufficient privileges
ORA-06512: at "SYS.DBMS_SESSION", line 101
ORA-06512: at "SYS.MY_TEST_PROC", line 20
ORA-06512: at line 1
The proc is created by sys and executed by sys too
create or replace procedure my_test_proc as
TYPE CUR1 IS REF CURSOR;
CURSOR c1 is
select ename from SCOTT.emp where rownum <2;
v_name varchar2(30);
MY_CUR CUR1;
STRQRY VARCHAR2(2000);
L_PARAM DBMS_SQL.VARCHAR2S;
CNT NUMBER;
V_DATA SCOTT.EMP%ROWTYPE;
BEGIN
STRQRY := 'SELECT * FROM SCOTT.EMP WHERE 1 =1 and (( 1= 1) ';
CNT := 0;
open c1;
loop
fetch c1 into v_name;
exit when c1%notfound;
CNT := CNT + 1;
dbms_session.set_context('MY_CTX','ENAME_' || CNT, V_NAME);
STRQRY := STRQRY || ' OR (ENAME = SYS_CONTEXT(''MY_CTX'',''ENAME_1'')';
end loop;
DBMS_OUTPUT.PUT_LINE(STRQRY || ')');
CLOSE C1;
END my_test_proc;
============================================================
EXEC my_test_proc;
Please help.

>
STRQRY := 'SELECT * FROM SCOTT.EMP WHERE 1 =1 and (( 1= 1) ';
>
The above query won't work because there is a syntax error.
Count the numbers of left and right parentheses.
Edit your post and use code tags and tell us which is line #20.
My guess is that it is this line
dbms_session.set_context('MY_CTX','ENAME_' || CNT, V_NAME); You don't show any code for the CONTEXT procedure. DBMS_SESSION.SET_CONTEXT in the PL/SQL Packages and Types doc
See http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_sessio.htm#i1010942
>
The caller of SET_CONTEXT must be in the calling stack of a procedure that has been associated to the context namespace through a CREATE CONTEXT statement. The checking of the calling stack does not cross a DBMS boundary.

Is it possible to ignore some events, while executing some code?

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