Function used in view definition is called multiple times
I am trying to write a view that boils down to the following statement:
SELECT val, val FROM (
SELECT SYS_GUID() val
FROM dual
Against my expectation, this calls SYS_GUID() twice, resulting in two different values for val.
I've written it here as inline view, but it must be a regular view in reality. Is there any way to construct this view so that SYS_GUID is called only once, even if the resulting value is then selected multiple times? Naively, I'd like to assign the result of SYS_GUID to a variable and then select the value of this variable. However, this does not seem possible in a view.
New to Oracle PL/SQL. This works as expected in SQL Server T-SQL.
Thanks for any help or insight you can provide.
-- Brian
brianberns wrote:
WHERE ROWNUM = 1 fixed the problem, although I have no idea why. Thank you!It's an unofficial way of preventing view merging.
The inline view in your original code is being eliminated and the query transformed to:
SELECT SYS_GUID(),SYS_GUID()
FROM dualIn some circumstances the optimiser couldn't do that if the inline view contains a predicate on the ROWNUM pseudocolumn so the transformation is disabled.
However the official way of doing this is with the NO_MERGE hint so I would definitely use NO_MERGE if it works (which it seems to), in case the optimiser gets smarter and disables the ROWNUM workaround in a future release.
Similar Messages
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Oracle Object Type Constructor Called Multiple Times
I have an object type with a custom constructor. In SQL, when I reference the attributes the constructor is called multiple times in Oracle 11.2.0.4.
Why is the constructor called multiple times?
How do I stop it?
My current work around is to reference the attributes and use the /*+ materialize */ hint.
Problem Setup
create or replace type Foo as object
Bar1 NUMBER,
Bar2 NUMBER,
Bar3 NUMBER,
CONSTRUCTOR FUNCTION Foo(p_Bar1 NUMBER, p_Bar2 NUMBER, p_Bar3 NUMBER)
RETURN SELF AS RESULT
DETERMINISTIC
create or replace type body Foo is
-- Member procedures and functions
CONSTRUCTOR FUNCTION Foo(p_Bar1 NUMBER, p_Bar2 NUMBER, p_Bar3 NUMBER)
RETURN SELF AS RESULT
DETERMINISTIC
AS
BEGIN
SELF.Bar1 := p_Bar1;
SELF.Bar2 := p_Bar2;
SELF.Bar3 := p_Bar3;
dbms_output.put_line('Foo Constructor Called');
RETURN;
END;
end;
Problem
-- Constructor is called 6 times!
-- Once for each column and once for each predicate in the where clause.
SELECT x.f.bar1 AS bar1, x.f.bar2 AS bar2, x.f.bar3 AS bar3, f
FROM (
SELECT foo(p_Bar1 => 1, p_Bar2 => 2, p_Bar3 => 3) f
FROM dual d
) x
WHERE x.f.bar1 = x.f.bar1 AND x.f.bar2 = x.f.bar2
Output
Foo Constructor Called
Foo Constructor Called
Foo Constructor Called
Foo Constructor Called
Foo Constructor Called
Foo Constructor Called
Workaround
-- Work Around
-- Constructor is called 3 times
-- Once for each column in the inline view.
-- Note, I removed column f (the object type) because it's not compatible with the materialize hint.
WITH y AS (
SELECT /*+ materialize */ x.f.bar1 AS bar1, x.f.bar2 AS bar2, x.f.bar3 AS bar3
FROM (
SELECT foo(p_Bar1 => 1, p_Bar2 => 2, p_Bar3 => 3) f
FROM dual d
) x
SELECT y.bar1, y.bar2, y.bar3
FROM y
WHERE y.bar1 = y.bar1 AND y.bar2 = y.bar2Another work-around is described in this thread... Accessing fields of a custom object type... which makes use of a collection type combined with the TABLE operator, like so...
create or replace type FooTable as table of Foo;
SELECT x.bar1 AS bar1, x.bar2 AS bar2, x.bar3 AS bar3, value(x) f
FROM table(FooTable(
foo(p_Bar1 => 1, p_Bar2 => 2, p_Bar3 => 3)
)) x
WHERE x.bar1 = x.bar1 AND x.bar2 = x.bar2
BAR1 BAR2 BAR2 F
1 2 3 (1, 2, 3)
Foo Constructor Called
Hope that helps...
Gerard -
Custom tag library called multiple times
Hi ppl ,
I have a custom tag library which i use to populate some menu components. When i do call my custom tag library though , it is called multiple times, use case is as follows.
I have menu tabs and menu bars which thanks to Mr.Brenden is working splendidly as so:-
<af:menuTabs>
<af:forEach var="menuTab" items="#{bindings.menu.vwUserMenuTabRenderer.rangeSet}">
<af:commandMenuItem text="#{menuTab.MenuLabel}"
shortDesc="#{menuTab.MenuHint}"
rendered="true"
immediate="true"
selected="#{sessionScope.selectedMenuId == menuTab.MenuId }"
onclick="fnSetSelectedValue('#{menuTab.MenuId}')" >
</af:commandMenuItem>
</af:forEach>
</af:menuTabs>
<af:menuBar>
<af:forEach var="menuBar" items="#{bindings.menu.vwUserMenuBarRenderer.rangeSet}">
<af:commandMenuItem onclick="return clickreturnvalue()"
onmouseover="dropdownmenu(this, event,#{menuBar.MenuId}, '150px')"
onmouseout="delayhidemenu()"
text="#{menuBar.MenuLabel}"
action="#{menuBar.MenuUri}"
rendered="#{menuBar.ParentId == sessionScope.selectedMenuId}"
immediate="true" />
</af:forEach>
</af:menuBar>
</afc:cache>
now all of this code is within a subview , and just directly below the subview tag , i have the call to my custom tag library:-
<myCustomTagLib:menuCascade />
only issue now is that assuming i have in all 7 menu bar components, the doStartTag is called 7 times. the relevant code within my custom tag class is as follows :-
public int doStartTag() throws JspException {
return (EVAL_BODY_INCLUDE);
public int doEndTag() throws JspException {
try {
declareVariables();
return EVAL_PAGE;
}catch (Exception ioe) {
throw new JspException(ioe.getMessage());
and within my declareVariables method i do an out of the jscript ( out.print(jscript.toString()); ) which is a simple string generated based on certain conditions...
now it seems to be working fine on the front end , but when i view the source of the page, i notice that the declaration is called multiple times, and this happens because the doStartTag method is called multiple times, i haven't even nested the call to the custom tag within the menu components , any clue as to whats going wrong ?
Cheers
KHi,
if you add the following print statement
System.out.println("rendering "+FacesContext.getCurrentInstance().getViewRoot().getViewId());
Then the output in my case is
07/04/24 08:14:04 rendering /BrowsePage.jsp
07/04/24 08:14:05 rendering /otn_logo_small.gif
The image comes from the file system, which means it is rendered by the JSF lifecycle. If you reference the image with a URL then the lifecycle doesn't render the image but only refrences it.
To avoid your prepare render code to be executed multiple times, just check for jsp and jspx file extensions, which will guarantee that your code only executes for JSF pages, not for loaded files.
The reason why this happens is because the JSF filter is set to /faces , which means all files that are loaded through that path
Frank -
ItemEditEnd called multiple times
Hi.
Am using a datagrid and using an item editor and item render for that. Item Renderer --> To give background color and Item Editor - to show a date picker. While implementing this, my need is to open a popup when we enter date. But, am getting the popup thrice , sometimes during "on change" and sometimes, when I press "Enter" or "Tab out" . When analyzed further, I noticed that itemEditEnd event is called thrice. Can anyone let me know the alternative for this please ? Here is my code.
<mx:AdvancedDataGrid width="1000" height="300" horizontalScrollPolicy="auto"
id="dProvider" creationComplete="init()" verticalScrollPolicy="auto" editable="true" itemEditBeginning="checkIfAllowed(event)" selectionMode="singleCell" itemEditEnd="onEditEnd(event)">
private function onEditEnd(event:AdvancedDataGridEvent):void
var oTaskPopupObj:TaskPopUp = new TaskPopUp();
PopUpManager.addPopUp(oTaskPopupObj,this,true);
//This part is called thrice !!!
I have been struggling to get rid of this issue. Would be very happy if I get a help quickly !
Thanks
BalaThanks for being patient and answering my questions.
And yes, the itemEditEnd is called multiple times, even for other scenarios. Find below a sample code, where-in, iam using date editor to validate the field entered. Here too, the itemEditEnd is called thrice( you can notice that the alert creeps up thrice). Let me know if you need anything else
Main mxml
[[ [Bindable]
private var compManDataDef:XML =<CompManData>
<row>
<Phase>Program Start</Phase>
<Date>Plan</Date>
<Gate>Enter Date</Gate>
<WBP>TBD</WBP>
</row>
<row>
<Phase></Phase>
<Date>Actual</Date>
<Gate>TBD</Gate>
<WBP>TBD</WBP>
</row>
private function onEditEnd(event:AdvancedDataGridEvent):void
Alert.show("in date validate");
<mx:AdvancedDataGrid width="100%" height="72%" horizontalScrollPolicy="auto" id="
dProvider" creationComplete="init()" dragEnabled="true" lockedColumnCount="5" editable="true" itemEditBeginning="checkIfAllowed(event)" selectionMode="singleCell" itemEditEnd="onEditEnd(event)">
<mx:columns>
<mx:AdvancedDataGridColumn dataField="
Phase"headerText="" width="
137" wordWrap="true" textAlign="center" itemRenderer="renderer.ColorwithLable" editable="false">
</mx:AdvancedDataGridColumn>
<mx:AdvancedDataGridColumn dataField="
Date"headerText="" width="
120" itemRenderer="renderer.ColorwithLable" editable="false"/>
<mx:AdvancedDataGridColumn id="
Gate" dataField="Gate"headerText="
Gate" width="120" editorDataField="newEmployeeType" labelFunction="dglfFormatDate" itemEditor="dateEditing" itemRenderer="renderer.ColorwithLable" />
<mx:AdvancedDataGridColumn id="
WBP" dataField="WBP"headerText="
WBP" width="120" itemRenderer="renderer.ColorwithLable"/>
</mx:AdvancedDataGrid>
editingDate.mxml......
<?xml version="1.0" encoding="utf-8"?><mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="initMe()" >
<mx:Script><![CDATA[
import mx.managers.PopUpManager;
import mx.controls.dataGridClasses.DataGridColumn;
import mx.controls.advancedDataGridClasses.AdvancedDataGridColumn;
import mx.controls.AdvancedDataGrid;
import mx.controls.advancedDataGridClasses.AdvancedDataGridListData;
Bindable]
public var tempVal:String = "";
public var newEmployeeType:String = "";
public var newEmployeeType1:String = "";
private function dateChanged(date:Date):void {
if (date == null)newEmployeeType =
elsenewEmployeeType = (date.getMonth()+1).toString() +
'/' + date.getDate().toString() + '/' + date.getFullYear().toString() ;}
private function initMe():void{tempVal = data.Gate;
if (tempVal != null) {dateField1.text =tempVal.toString();
]]>
</mx:Script><mx:DateField id="dateField1" yearNavigationEnabled="true" change="dateChanged(DateField(event.target).selectedDate)"/></mx:HBox
> -
Generic Data Source is calling multiple times in RSA3
[color:red}<Moderator Message: This topic has alread been discussed a lot of times. Additionally there are weblogs related to it. Please search the forums and/or the blogs for this issue>
Hi experts,
I have the requirement to get data from Generic Data Sources with function Module,
after finishing the FM I have checked in extact checker(RSA)
in the internal table I_T_DATA is displays 281 records,
but in RSA3 it shows 112560 records, I found that the FM is calling multiple time by executing one time in RSA3.
1.what would be the problem
2.where is the porblem is it in FM coding or any other places to check.
<removed by moderator>
Regards
Vijay
Edited by: Siegfried Szameitat on Feb 3, 2009 11:45 AMHi Savita,
I don't understand clearly from your reply regarding flow you transported and what all you transported.
You need to first transport objects in R/3 and import them.
Then transport Infoprovider, Datasource in BI assuming depenedent Infoare Infoobject, application component already transported.
Then transport your Infosource, Update rule, Transfer rules, Infopackage.
Hope you understood.
Ravi -
Php include file getting called multiple times
I have created a form in file career.php. To carry out the validation user_registration.php is called at the beginning of the file.
user_registration.php in turn calls library.php. Issue is that library.php is getting called multiple times.
I have attached phperror.log which confirms the same.
career.php
<?php
session_start();
require_once('phpScript/user_registration.php');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
user_registration.php
<?php // This file is used for validating user form data. It calls process_upload.php to validate file uploaded by user
$errors = array();
$messages = array();
$testing = TRUE;
error_log("Enter- user_registration.php. Testing mode $testing", 0);
try {
error_log("user_registration.php: Entered try catch block",0);
require_once('library.php');
error_log("Successfully called library.php",0);
$public_key = '6LeDsNUSAAAAAIoaYuNhGm2zx_qgBECiybUWUkt6';
$private_key = '6LeDsNUSAAAAACuvmJrec-_5seLdmhqUMngt8AiU';
$recaptcha = new Zend_Service_ReCaptcha($public_key, $private_key);
if(isset($_POST['submit'])) { // Only execute if form is submitted by user
error_log("user_registration.php. Submit button pressed by user", 0);
require_once('Zend/Mail.php');
$mail = new Zend_Mail('UTF-8');
if (isset($_POST['name'])) {
$val = new Zend_Validate_Regex('/^\p{L}+[-\'\p{L} ]+$/u');
if (!$val->isValid($_POST['name'])) {
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error_log("Exit- user_registration.php.", 0);
library.php
<?php
error_log("Enter- library.php. Testing mode $testing", 0);
if ($testing) // If true then go to testing mode
$library = '/Applications/MAMP/htdocs/mgtools-india/ZendFramework/library';
set_include_path(get_include_path() . PATH_SEPARATOR . $library);
require_once('Zend/Loader/Autoloader.php');
try {
Zend_Loader_Autoloader::getInstance();
error_log("Exit- library.php. Testing mode $testing", 0);
phperror.log
Marker - 12-Oct-2012 10:27:26 AM
[12-Oct-2012 04:57:33 UTC] Enter- user_registration.php. Testing mode 1
[12-Oct-2012 04:57:33 UTC] user_registration.php: Entered try catch block
[12-Oct-2012 04:57:33 UTC] Enter- library.php. Testing mode 1
[12-Oct-2012 04:57:33 UTC] Exit- library.php. Testing mode 1
[12-Oct-2012 04:57:33 UTC] Successfully called library.php
[12-Oct-2012 04:57:36 UTC] Enter- user_registration.php. Testing mode 1
[12-Oct-2012 04:57:36 UTC] Entered try catch block
[12-Oct-2012 04:57:36 UTC] Enter- library.php. Testing mode 1
[12-Oct-2012 04:57:36 UTC] Exit- library.php. Testing mode 1
[12-Oct-2012 04:57:36 UTC] Successfully called library.php
[12-Oct-2012 04:58:38 UTC] Enter- user_registration.php. Testing mode 1
[12-Oct-2012 04:58:38 UTC] Entered try catch block
[12-Oct-2012 04:58:38 UTC] Enter- library.php. Testing mode 1
[12-Oct-2012 04:58:38 UTC] Exit- library.php. Testing mode 1
[12-Oct-2012 04:58:38 UTC] Successfully called library.php
[12-Oct-2012 04:58:38 UTC] user_registration.php. Submit button pressed by user
[12-Oct-2012 04:58:39 UTC] user_registration.php, Processing enquiry form
[12-Oct-2012 04:58:39 UTC] Enter- process_upload.php. Testing mode 1
[12-Oct-2012 04:59:01 UTC] Exit- user_registration.php.
I am not able to understand why user_registration.php and library.php are executing again and again.
I ran this test on local testing server MAMP.
The results are the same on remote server also.
Please guide.I'm not sure what's happening there. The important question is whether the code is executed successfully.
Since you're using the Zend Framework, it might be better to ask in a dedicated ZF forum. -
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I am saving an eform after entering a wrong percentage in it.On opening the same eform it gives the validate message "Percentage not valid" pop up .This popup should come only once but its coming around 25-26 times.I checked and find that the validate event is getting called multiple times for the same field.Can someone tell why this is happening and how to resolve this
Hi rupali Sri,
Our forum here is for questions related to the LiveCycle Collaboration Service product.
You might want to post your question to the Livecycle Forms forum:
http://forums.adobe.com/community/livecycle/livecycle_es/forms_es
If that's not the correct forum, start from here:
http://forums.adobe.com/index.jspa?view=overview
Hope this helps.
Good luck,
Julien
LCCS Quality Engineering -
IPhone - Sybase RFC called multiple times
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[sync save];
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[NSThread sleepForTimeInterval:0.2];
[sync delete];
Edited by: PJ Deraedt on Sep 19, 2011 11:06 AMHi
Once the personalization parameters are set ,you should call [pp save];
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or
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or
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RaviUse Wait up to statement in loop.
Ex:
loop at it_filedir1.
REFRESH I_TAB.
CLEAR I_TAB.
REFRESH I_TAB2.
REFRESH ITAB1.
data: g_file(100) type c .
name = it_filedir1-name.
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ENCODING DEFAULT
IGNORING CONVERSION ERRORS.
IF SY-SUBRC EQ 0.
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split i_tab1 at ',' into I_TAB-SOL_DOCNO I_TAB-SOL_DOCDT
I_TAB-GI_TXN_TYPE I_TAB-WERKS I_TAB-LGOBE I_TAB-MATNR
I_TAB-ERFMG I_TAB-ERFME.
else.
exit.
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APPEND I_TAB.
clear I_TAB.
ENDDO.
ENDIF.
CLOSE DATASET g_file.
concatenate: hfile '\' name into h_file.
REFRESH I_MAIN.
CLEAR I_MAIN.
I_MAIN[] = I_TAB[].
REFRESH I_OUT.
CLEAR I_TAB.
I_OUT[] = I_TAB[].
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SORT I_TAB BY SOL_DOCNO.
LOOP AT I_TAB.
count = sy-tabix.
SELECT SINGLE * FROM ZMM_GI_WIP
WHERE GI_NO = I_TAB-SOL_DOCNO AND
GI_DATE = I_TAB-SOL_DOCDT.
IF SY-SUBRC = 0.
I_TAB-FLAG = 'C'.
modify i_tab index count.
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APPEND I_MSG1.
CLEAR I_TAB-FLAG.
CONTINUE.
ELSE.
CONCATENATE I_TAB-SOL_DOCDT+4(2)
I_TAB-SOL_DOCDT+6(2)
I_TAB-SOL_DOCDT+2(2)
I_TAB-SOL_DOCDT+0(2)
INTO G_DATE.
gmhead-pstng_date = G_DATE.
gmhead-doc_date = sy-datum.
gmhead-pr_uname = sy-uname.
"01 - MB01 - Goods Receipts for Purchase Order
gmcode-gm_code = '03'.
refresh itab.
clear itab.
SORT I_MAIN BY SOL_DOCNO.
LOOP AT I_MAIN WHERE SOL_DOCNO = I_TAB-SOL_DOCNO.
IF I_MAIN-GI_TXN_TYPE = 'RMGI'.
itab-move_type = '291'.
ENDIF.
itab-mvt_ind = ' '.
itab-plant = I_MAIN-WERKS.
itab-material = I_MAIN-MATNR.
itab-entry_qnt = I_MAIN-ERFMG.
itab-stge_loc = 'OMR1'.
itab-move_stloc = pcitab-recv_loc.
itab-stge_loc = I_MAIN-LGOBE.
itab-ENTRY_UOM = I_MAIN-ERFME.
IF I_MAIN-WERKS = 'OMR'.
itab-TR_PART_BA = '11'.
ELSEIF I_MAIN-WERKS = 'OMR'.
itab-TR_PART_BA = '12'.
ENDIF.
append itab.
ENDLOOP.
if not itab[] is initial.
call function 'BAPI_GOODSMVT_CREATE'
exporting
goodsmvt_header = gmhead
goodsmvt_code = gmcode
* TESTRUN = ' '
IMPORTING
goodsmvt_headret = mthead
* MATERIALDOCUMENT =
MATDOCUMENTYEAR =
tables
goodsmvt_item = itab
GOODSMVT_SERIALNUMBER =
return = errmsg.
clear errflag.
loop at errmsg.
if errmsg-type eq 'E'.
write:/'Error in function', errmsg-message.
errflag = 'X'.
else.
write:/ errmsg-message.
endif.
move errmsg-message to i_msg1.
append i_msg1.
endloop.
if errflag is initial.
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
EXPORTING
WAIT =
IMPORTING
RETURN =
commit work and wait.
if sy-subrc ne 0.
write:/ 'Error in updating'.
exit.
else.
write:/ mthead-mat_doc, mthead-doc_year.
ZMM_GI_WIP-GI_NO = I_TAB-SOL_DOCNO.
ZMM_GI_WIP-GI_DATE = I_TAB-SOL_DOCDT.
INSERT ZMM_GI_WIP.
COMMIT WORK.
I_TAB-FLAG = 'C'.
MODIFY I_TAB INDEX COUNT.
CONCATENATE mthead-mat_doc mthead-doc_year
into i_msg1.
append i_msg1.
perform upd_sta.
endif.
endif.
endif.
ENDIF.
wait up to 20 seconds.
ENDLOOP. -
Listener method is called multiple times
why is a listener method called multiple times when the user interacted
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I got a dilly of a pickle here.
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Here is the User class:
package com.db.multi;
import java.io.*;
import com.db.ui.*;
import java.util.*;
* @author DBriscoe
public class User implements Serializable {
private String userName = null;
private int score = 0;
private SocketImage img = null;
private boolean gflag = false;
private Calendar timeStamp = Calendar.getInstance();
private static int counter = 0;
/** Creates a new instance of User */
public User() { counter++;
public User(String userName) {
this.userName = userName;
counter++;
public void setGflag(boolean gflag) {
this.gflag = gflag;
public boolean getGflag() {
return gflag;
public void setScore(int score) {
this.score = score;
public int getScore() {
return score;
public void setUserName(String userName) {
this.userName = userName;
public String getUserName() {
return userName;
public void setImage(SocketImage img) {
this.img = img;
public SocketImage getImage() {
return img;
public void setTimeStamp(Calendar c) {
this.timeStamp = c;
public Calendar getTimeStamp() {
return this.timeStamp;
public boolean equals(Object obj) {
try {
if (obj instanceof User) {
User comp = (User)obj;
return comp.getUserName().equals(userName);
} else {
return false;
} catch (NullPointerException npe) {
return false;
public void finalize() {
if (userName != null && !userName.startsWith("OUTOFDATE"))
System.out.println("User " + userName + " destroyed. " + counter);
}As you can see...
Every time a User object is created, a static counter variable is incremented and then when an object is destroyed it appends the current value of that static member to the Tomcat log file (via System.out.println being executed on server side).
Below is the log file from an example run in my webapp.
Dustin
User Queue Empty, Adding User: com.db.multi.User@1a5af9f
User Dustin destroyed. 0
User Dustin destroyed. 0
User Dustin destroyed. 0
User Dustin destroyed. 0
User Dustin destroyed. 0
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 1
User Dustin destroyed. 1
User Dustin destroyed. 1
User Dustin destroyed. 1
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
User Dustin destroyed. 2
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
User Dustin destroyed. 3
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
User Dustin destroyed. 4
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
User Dustin destroyed. 5
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
User Dustin destroyed. 6
Joe
USER QUEUE: false
INSIDE METHOD: false
AFTER METHOD: false
User Dustin pulled from Queue, Game created: Joe
User Already Placed: Dustin with Joe
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
User Dustin destroyed. 7
INSIDE METHOD: false
INSIDE METHOD: false
USER QUEUE: true
INSIDE METHOD: false
INSIDE METHOD: false
User Dustin destroyed. 9
User Joe destroyed. 9
User Dustin destroyed. 9
User Dustin destroyed. 9
User Dustin destroyed. 9
User Dustin destroyed. 9
INSIDE METHOD: true
INSIDE METHOD: false
USER QUEUE: true
INSIDE METHOD: false
INSIDE METHOD: false
INSIDE METHOD: true
INSIDE METHOD: false
USER QUEUE: true
INSIDE METHOD: false
INSIDE METHOD: false
It really does seem to me like finalize is being called multiple times for the same object.
That number should incremement for every instantiated User, and finalize can only be called once for each User object.
I thought this was impossible?
Any help is appreciated!Thanks...
I am already thinking of ideas to limit the number of threads.
Unfortunately there are two threads of execution in the servlet handler, one handles requests and the other parses the collection of User objects to check for out of date timestamps, and then eliminates them if they are out of date.
The collection parsing thread is currently a javax.swing.Timer thread (Bad design I know...) so I believe that I can routinely check for timestamps in another way and fix that problem.
Just found out too that Tomcat was throwing me a ConcurrentModificationException as well, which may help explain the slew of mysterious behavior from my servlet!
The Timer thread has to go. I got to think of a better way to routinely weed out User objects from the collection.
Or perhaps, maybe I can attempt to make it thread safe???
Eg. make my User collection volatile?
Any opinions on the best approach are well appreciated.
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