Question about ampool.timetolive property

Hi, the question is what happens when ampool.timetolive property expires and the
user continues to use the module in it’s session.
I’m getting some suspicious null pointer exceptions caused by the framework and database connections lost and I’m wondering
if these are related to the ampool.timetolive property or session timeout property in web.xml.
Any comment will be helpful,
Thanks

Only inactive AM instances are removed from the pool according to the documentation. Try setting the jbo.ampool.monitorsleepinterval parameter to a high enough value so that the background clean-up process does not run for a long time. By default it runs every 10 minutes.
Hope it helps,
Nick

Similar Messages

Question about Val(Sgnl) property

Hello,
I am reading data from a telnet connection as 16-bit binary values. I strip individual bits of that 16-bit word to light up indicators. For each indicator that I light up, I want to have an associated 'history' indicator, that would show if it lit up, then went dark at some point (i.e. like an overnight test).
To achieve this, when I assign a value to a given indicator, I send that same value to that indicator's Val(Sngl) property. Then I have an event structure that simply sets the 'history indicator' true whenever there's a Value Change in that Val(Sngl) field.
OK so my problem is that I must not be understanding what constitutes a value change, because what's happening is that when there is an error on any indicator, ALL of the history indicators are lighting up. The VI is large and complex, so instead I attached a picture that shows the important parts. Notice on the left I mask out individual bits, then on the right is where I light up the indicator based on the Value Change property. I've only shown one here because they are discrete but the code is identical...if the respective error bit changes value (low-to-high or high-to-low), then light the history.
So as an example...if G_LOL Summ goes active, the history bits for all 5 indicators goes active.
I put probes on the signals that I don't expect to light up (i.e. probe #18 at the bottom of the picture on the left)...it stays "false" the whole time (i.e. value doesn't change), yet it's history indicator comes on.
Any thoughts? Thank you
Solved!
Go to Solution.
Attachments:
labview.png ‏63 KB

bmishoe wrote:
that's an excellent idea because the event structure 'value change' options by default include New Value and Old Value...I can just check to see if they are = and if not then set the history bit true. Great idea!
Or, to avoid extra code, you could check to see if they are NOT true equal and use that output as the value for your history bit.
Bill
(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.

Question about the programming of a legend

Hello everybody,
I have a question about the programming of a waveform's legend. I
already asked here in this forum about the legend programming (03)
months ago.
I went satisfied but I ve just noticed that this code
(See Code old_legend_test.llb with main.vi as main function) operates a
little different from my expectances.
Therefore I have a new question and I want to know if it
is possible by labview programming to plot and show, on a waveform
chart, a signal with activ plot superior to zero (0) without to be
obliged to plot and show a signal with activ plot equal to zero (0) or
inferior to the desired activ plot.
I give you an example
of what I m meaning. I have by example 4 signals (Signal 0, 1, 2 and 3)
and each signal corresponds respectively to a channel (Chan1, Chan2,
Chan3, Chan4). I want to control the legend (activ plot, plot name and
plot color) programmatically. Is it possible with labview to plot signal
1 or 2 or 3 or (1, 3) or (2,3) or (1,2,3) or other possible combination
without to active the signal with the corresponding activ plot zero
(0)?
Let see the labview attached data
(new_legend_test.llb with main.vi as main function). When I try to
control the input selected values again I get them back but I don't
understand why they have no effect on the legend of my waveform chart.
Could somebody explain me what I m doing wrong or show me how to get a
correct legend with desired plots? Thank by advance for your assistance.
N.B.
The
both attached data are saved with labview 2009.
Sincerly,PrinceJack
Attachments:
old_legend_test.llb ‏65 KB
new_legend_test.llb ‏65 KB

Hi
princejack,
Thanks for
posting on National Instruments forum.
The behavior
you have is completely normal. You can control the number of row displayed in
the legend and this rows are linked to the data you send to your graph. Thus,
if you have 3 arrays of data, let say chan1, chan2 and chan3, you can choose
which data you want to display in your graph using the property node (Active
plot and visible). But for the legend as you send 3 plots there is an array of
the plot name [chan1, chan2, chan3] and you can display 0, 1, 2 or 3 rows of
this array but you cannot control the order in this array! So, to be able to
change this array you have to only send data you need to you graph. I'm not
sure my explanations are clear so I have implemented a simple example doing
that.
Benjamin R.
R&D Software Development Manager
http://www.fluigent.com/
Attachments:
GraphLegend.vi ‏85 KB

Questions about supporting TLF with Halo components in Flex 4.1

We recently decided to upgrade to the Flex 4.1 SDK after a year or so at 3.2. We have been asked to not use the new SPARK components yet because our products would then have a mistmatch of Halo and Spark components in the UI. We have built support for our Halo components to display html through the ".htmlText" property for the Text components. For example, we can display strings such as "<p>Choose <b>one</b> option:</p>". With the upgrade to Flex 4.1 a couple of questions about supporting bi-directional text have come up. My understanding is that in order to support bi-directional text we need to use the Text Layout Framework. Does anyone have a suggestion on how we can utilize the TLF with the Halo components in Flex 4.1? Can we still use the ".htmlText" property somehow or is there a new property that understands the TextFormat markup? We would love to still be able to use the limited html tags that are supported for the "htmlText" property. Is there an option where that syntax is still understood?
Thanks in advance!
David

The halo components use TextField, and the spark components use TLF. Both sets have support for some html markup to import and export text. To use bidi text, you have to use TLF; TextField won't work properly.
It is possible to use TLF to build your own components, and this can work well particularly for applications with specialized needs. But if you need bidi support for advanced components like DataGrid and List, then you should use the spark components.
Thanks!
- robin

Question about get web service result in actionscript and convert data format

Hi, All
I have question about how to get dataset from web services
and put it in tree structure. I have 2 questions about this:
1, How can I get data correctly in actionscript?
I have no problem to get data by
<mx:ArrayCollection id="acFolder"
source="{mx.utils.ArrayUtil.toArray(MyGServices.getFolder.lastResult)}"
/>
And display in datagrid.
But when I try to use
public function
handleFolderContents(event:mx.rpc.events.ResultEvent):void{
arData=mx.utils.ArrayUtil.toArray(event.result);
acData=new ArrayCollection(arData);
input.text=acData.getItemAt(0).id;
Seems I can’t get data, it always say:
TypeError: Error #1009: Cannot access a property or method of
a null object reference.
2, how to convert data format
I get data from web service and want to convert it to tree
structure, as mention below:
I get:
<Array>
<id>111</id>
<Name>Production1</Name>
</Array>
<Array>
<id>222</id>
<Name>Production2</Name>
</Array>
Convert to:
<mx:XMLList id="treeData">
<node>
<node label="Production1" data="111">
<node label="Production2" data="222"/>
</node>
</node>
</mx:XMLList>
Please help me.
Thanks.

First, don't specify the package path in the argument
declaration. Instead import the event object:
import mx.rpc.events.ResultEvent;
The docs state this emphatically.
Second, try "lastResult", in place of "result":
arData=mx.utils.ArrayUtil.toArray(event.lastResult); // I am
not positive about this. I maybe recall reading that result was ok
for the event object, but maybe not.
Finally, why do you want to convert the xml? You certainly
could, but it would be a manual process, recursively reading the
existing xml nodes and building the new structure, but again, why?
Just use a labelFunction if necessary to display the nodes as
you wish.
Tracy

Disabling jbo.ampool.timetolive

Hi!
I want to disable the use of the parameter jbo.ampool.timetolive, because I set the limit of the AM pool to zero using jbo.ampool.minavaiblesize.
Now, I don´t know if this is possible, my best guess is to set the value to -1. Am I right?
Thanks!

The number -1 has no special significance for this property.
If you have minavailablesize set to 0 and you set the timetolive to a value in milliseconds that is larger than the max idle time, then you will effectively have disabled the time to live consideration since you'll always have removed the AM from the pool for being idle before you'd ever have to consider removing it for having exceeded its time-to-live setting.

Urgent - Question about logging and debugging.

Hi,
I have a question about the logging and debugging supported by
Weblogic 6.0. From what I understood by reading the documentation
it has classes e.g. NotCatalogLogger class for logging the information.
The class has one method callded
debug() for writing the debugging information. I want to log the
debug messages only in some situation. Can I control this using
some property? Because the documentation says that the debug information
is logged only if application is running in debug mode. Now how
do I change the mode of an application??
Thanks and Reagrds,
Manoj

Hi,
I have a question about the logging and debugging supported by
Weblogic 6.0. From what I understood by reading the documentation
it has classes e.g. NotCatalogLogger class for logging the information.
The class has one method callded
debug() for writing the debugging information. I want to log the
debug messages only in some situation. Can I control this using
some property? Because the documentation says that the debug information
is logged only if application is running in debug mode. Now how
do I change the mode of an application??
Thanks and Reagrds,
Manoj

A question about AdvancedDatagridColumnGroup

Hi guys,
     Just a quick question about AdvancedDatagridColumnGroup, is the children property only allowed to have an AdvancedDatagridColumn on it?
Because what I'm trying to do is in my recursive function I'm trying to create a nested AdvancedDataGridColumnGroup, all good until I set the ADG's groupedColumns to a certain array which is a return array of the recursive function. It throws out an exception something in the groupedValidation function of ADG.
Here's the code that does that
var createColumnGroup:Function = function( group:Array, xml:* ) : Array
                              var ret:Array = new Array;
                              var colGroup:AdvancedDataGridColumnGroup = newAdvancedDataGridColumnGroup;
                              for(var index:int = 0; index < 1; ++index){
                                    var parts:Array = String(group[index]).split(DELIMITER);
                                    if(parts.length){
                                          colGroup = new AdvancedDataGridColumnGroup;
                                          colGroup.headerText = parts[0];
                                          colGroup.children = [];
                                          var curHeader:String = parts[0];
                                          parts.splice(0,1);
                                                                                     //this is the part where I'm trying to nest the advancedDataGridColumnGroup
                                                                                     // what's to be replaced in this line to make a valid nest of ADGColumnGroup?
                                          if( parts.length > 0){
                                                colGroup.children.push( createColumn([parts.join(DELIMITER)], xml));
                                                                            ret.push( colGroup )
                              return ret;
and I call it like this
var gCols:Array = createColumn( colsArr, new XML(_xml.children()[0].toString()));
adg.groupedColumns = gCols;
Best Regards,
jd

Your problem is you have iDVD 4 or earlier. Such versions ONLY supported internal SuperDrives.
PatchBurn at http://www.patchburn.de/faq.html may help you.

A question about Oracle 1g R2 Enterprise Edition license

Dear all,
I have a question about Oracle license and I would appreciate if you could kindly help me.
I have installed an Oracle server (11g R2 Enterprise edition) on a linux virtual machine. The pc used for this purpose
is my enterprise laptop (therefore a professional and not a personal Computer). However, I use the this Oracle Server
only for learning purpose, that is, only for running the examples in my Oracle Press books (SQL, PL/SQL and some
administration tasks) just for learning the stuff.
There is absolutely no data related to my enterprise, stored or used on this server. Whenever I want to work with my
enterprise data, I use the Oracle server of the enterprise which has of course the appropriate license. So as I said, I
use this Enterprise server on the virtual machine only for running queries/programs in my Oracle Press books just for
learning and I'm the sole person who uses this server (no remote connection for other users).
The reason for which I needed to install this server on my PC was that our DBA couldn't provide a training environment
for me with all required privileges and functionalities.
Am I supposed to buy a license for this installed Enterprise server on my virtual machine?
Thanks in advance,
Dariyoosh

drop.any wrote:
From OTN license agreement:
>
LICENSE RIGHTS
We grant you a nonexclusive, nontransferable limited license to use the programs only for the purpose of developing, testing, prototyping and demonstrating your application, and not for any other purpose. If you use the application you develop under this license for any internal data processing or for any commercial or production purposes, or you want to use the programs for any purpose other than as permitted under this agreement, you must obtain a production release version of the program by contacting us or an Oracle reseller to obtain the appropriate license. You acknowledge that we may not produce a production release version of the program and any development efforts undertaken by you are at your own risk. We may audit your use of the programs. Program documentation, if available, may accessed online at http://otn.oracle.com/docs.
Ownership and Restrictions We retain all ownership and intellectual property rights in the programs. The programs may be installed on one computer only, and used by one person in the operating environment identified by us. You may make one copy of the programs for backup purposes.
You may not:
- use the programs for your own internal data processing or for any commercial or production purposes, or use the programs for any purpose except the development of your application;
- use the application you develop with the programs for any internal data processing or commercial or production purposes without securing an appropriate license from us;
- continue to develop your application after you have used it for any internal data processing, commercial or production purpose without securing an appropriate license from us, or an Oracle reseller;
- remove or modify any program markings or any notice of our proprietary rights;
- make the programs available in any manner to any third party;
- use the programs to provide third party training;
- assign this agreement or give or transfer the programs or an interest in them to another individual or entity; - cause or permit reverse engineering (unless required by law for interoperability), disassembly or decompilation of the programs;
- disclose results of any program benchmark tests without our prior consent.
>Hello again,
Thank you both of you for your help. As it seems to me
>
We grant you a nonexclusive, nontransferable limited license to use the programs only for the purpose of developing, testing, prototyping and demonstrating your application, and not for any other purpose.
>
I think self training can be considered in this category, therefore I think there is no need to buy a license for that.
Kind regards,
Dariyoosh

Question about Local Variables (Multiple answers welcomed!)

A couple of questions about Local Variables
1. Programmers always say: “Do not abuse of Local Variables”. I’d like to know, when and where Local variable are most efficiently used?
2. If I have to create a couple of local variables, is there anyway to “clone” them without going through the repetitive “create/local variables” mouse click each time? (When I try to copy and paste, it creates a new variables instead of the one that I am trying to reproduce)
3. Which is faster in execution: Updating a variable through a) writing to property node/value or b) through local variable
Everyone’s input is welcomed, so if this question is already answered, please
feel free to add additional comments/answers!

1. Use Local Variables in user interface code and no where else. The only exception is using a local variable of a cluster output to define the datatype for a bundle by name node.
2. You can drag copy them then right click to get to a menu of all the currently defined controls and indicators on the VI.
3. B. The problem with A is that it forces a thread switch to the user interface thread--which can take time if you aren't already in it, and it's a very convoluted process under the hood. NI's advice never update indicator values through a property node unless you absolutely, positively can't figure out some other way of doing it.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Question about child "windows"

Hello Everyone,
First, I want to thank everyone who's so graciously taken
their time to answer my previous questions. Because of you, I am
well on my way to developing my very first real world Flex
application. I am consistently astounded at how helpful this
community is and am very thankful to have you all here.
Now, I do have one question about some code that works on the
example but not in real life. I am trying to open a popup window
from a class named composeScreen. In my CDATA section, I have the
following code:
function showWindow(modal) {
var popup = mx.managers.PopUpManager.createPopUp(this,
composeNewMessage, modal, {deferred: true});
Yet, when I save the program, Flex Builder tells me:
"Access of undefined property mx"
Any idea why this is happening?
I've even tried importing the mx.managers.popUpManager class
and it makes no difference.
Please help! This is driving me nuts!
Thanks in Advance,
Anthony

Hi Anthony,
You will have to use popup manager class for this.Here is the
code to give you a lil bit of direction. Call init() function in
the initilize event of the <mx: application> tag
import mx.managers.PopUpManager;
private function init():void{
myWindow = PopUpManager.createPopUp(this, MyWindow, false);
myWindow.visible = false;
myWindow.x = 200;
myWindow.y = 200;
myWindow.height = 100;
private function showWindow():void{
myWindow.visible = true;
myWindow.expand.play();
<mx:Button id="btn" label="click me"
click="showWindow()"/>
When you click on the button your child window must pop
up.

2 questions about Dropdown Box Item

Hi all,
I just started using Design Studio and I have two questions about the Dropodown Box Item (well actually it's more about scripting...):
- in the startup script of the application I want to populate one dropdown box with master data values of the infoobject 0FISCPER, how can I realize that? (if I use "DS_1.getMemberList...." I get only the values of 0FISCPER for which there is transaction data)
- as a datasource I use a query with 2 variables:
- Is it possible to populate these 2 variables with default values and skip the initial Variabile Initialization Screen?
- I use 2 dropdown box items to set the values of these 2 variables. For one variable everything it's ok (I select the value in the dropdown and the script populate the variable with that value and the data in the crosstable changes accordingly) but for the other variable associated to the 0FISCPER infoobject when I select the value in the dropdown it's seem that nothing happens since the Variabile Initialization Screen pop-up and an error says that I have to select a value for the variable. I did the same simple scripts for the these 2 variables, why does it work for one variable and not for the other?
Thanks,
Michele

I answer myself about one question:
"Is it possible to populate these 2 variables with default values and skip the initial Variabile Initialization Screen?"
Yes, it's possible to create a script in order to populate the variables in the event "On Variable Initialization" of the Application and set false to the property "Force Prompts on Startup".

Question about DateChooser

<mx:DateChooser id="dtReport" showToday="true"
yearNavigationEnabled="true" initialize="initDC()"
change="gochage(event)" />
<mx:Script>
<![CDATA[
private function
viewDayReport(eventObj:CalendarLayoutChangeEvent):void{
Alert.show(eventObj.newDate.toString());
Alert.show(eventObj.currentTarget.selectedDate.toString());
]]>
</mx:Script>
===========
when i click the same date in DateChooser , an error throwed
"#1009:cannot access a property or method of a null object
reference..."
seems eventObj.newDate. is right ,
eventObj.currentTarget.selectedDate is wrong?
Thx a lot!

HI, a question about he toedter JCalendar package.So why do you ask here?
I have a dateChooser object on my form, but I need to
do something everytime the date changes. What is the
best way to implement an onDateChange() method? Is
there a way of doing this easily?Probably by adding some listener. Would depend on the API which i don't know.

Question about inner class - help please

hi all
i have a question about the inner class. i need to create some kind of object inside a process class. the reason for the creation of object is because i need to get some values from database and store them in an array:
name, value, indexNum, flag
i need to create an array of objects to hold those values and do some process in the process class. the object is only for the process class that contains it. i am not really certain how to create this inner class. i tried it with the following:
public class process{
class MyObject{}
List l = new ArrayList();
l.add(new MyObject(....));
or should i create the object as static? what is the benifit of creating this way or static way? thanks for you help.

for this case, i do need to create a new instance of
this MyObject each time the process is running with a
new message - xml. but i will be dealing with the case
where i will need a static object to hold some
property values for all the instances. so i suppose i
will be using static inner class for that case.The two situations are not the same. You know the difference between instance variables and static variables, of course (although you make the usual sloppy error and call them static objects). But the meaning of "static" in the definition of an inner class is this: if you don't declare an inner class static, then an instance of that inner class must belong to an instance of its containing class. If you do declare the inner class static, then an instance of the inner class can exist on its own without any corresponding instance of the containing class. Obviously this has nothing to do with the meaning of "static" with respect to variables.

Questions about your new HP Products? HP Expert Day: January 14th, 2015

Thank you for coming to Expert Day! The event has now concluded.
To find out about future events, please visit this page.
On behalf of the Experts, I would like to thank you for coming to the Forum to connect with us. We hope you will return to the boards to share your experiences, both good and bad.
We will be holding more of these Expert Days on different topics in the months to come. We hope to see you then!
If you still have questions to ask, feel free to post them on the Forum – we always have experts online to help you out.
So, what is HP Expert Day?
Expert Day is an online event when HP employees join our Support Forums to answer questions about your HP products. And it’s FREE.
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It’s easy. Come out to the HP Support Forums, post your question, and wait for a response! We’ll have experts online covering our Notebook boards, Desktop boards, Tablet boards, and Printer and all-in-one boards.
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Looking forward to seeing you on January 14th!
I am an HP employee.

My HP, purchased in June 2012, died on Saturday. I was working in recently installed Photoshop, walked away from my computer to answer the phone and when I came back the screen was blank. When I turned it on, I got a Windows Error Recovery message. The computer was locked and wouldn't let me move the arrow keys up or down and hitting f8 didn't do anything.
I'm not happy with HP. Any suggestions?

Question about ampool.timetolive property

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