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Re: funtion taking time to return Callback
by davidmarginian
::
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This is not normal so my guess is you are trying to return way too much
data or have recursive data. Are you really using version of 2.0, not
2.05? I mention this because we used to have some performance issues in
building JS objects on the client. We were using string concatenation
instead of adding to and joining an array. This can cause older IE
versions to bog down. This is fixed in 2.05, but may exist in older 2.x
versions.
Have you tried calling your method from the DWR test page as Lance
initially recommended? Does this happen in all browsers (try using
Firefox)? You need to determine if the slow up on the server (DWR
serializing) or on the client. In addition to Lance's recommendation I
would recommend placing some breakpoints in your script with Firebug
(you can even place some in engine.js before and after the call
returns). To weed out DWR's serialization on the server you can grab
the source code and place a breakpoint in the marshallOutbound method on
BaseCallMarshaller.
Rizwan Ahmed wrote:
> ExtraLatencyAjaxFilter didnot solved my problem.
> Its not a simple bean converter. The return type is bean itself. That inturn
> sets 6-8 beans in that.
>
>
> Lance Java wrote:
>
>> Can you give a bit more info on the return type of the method and the
>> converter you are using?Is it a simple bean converter or is it some form
>> of
>> hibernate converter fetching unwanted rows from your DB?
>>
>> 2009/6/23 Rizwan Ahmed <rizwan.amd@...>
>>
>>
>>> Hi Lance,
>>>
>>> I will configure this and check it.
>>> I feel its not exactly clientside problem, but it is taking time to get
>>> the
>>> callback.
>>>
>>> Rizwan
>>>
>>>
>>> Lance Java wrote:
>>>
>>>> I don't suppose you've got joe's ExtraLatencyAjaxFilter configured?
>>>> <filter
>>>>
>>> class="org.directwebremoting.filter.ExtraLatencyAjaxFilter">
>>>
>>>> </filter>
>>>>
>>>> Have you tried executing from the dwr debug page? Is it some clientside
>>>> rendering taking the time?
>>>>
>>>> 2009/6/23 Rizwan Ahmed <rizwan.amd@...>
>>>>
>>>>
>>>>> Hi,
>>>>> Am using DWR 2.0.
>>>>> I have written a piece of code in javascript as:
>>>>>
>>>>> StrandSummary.buildStrandSummary(objParametersBD,
>>>>>
>>> function(objSummary){
>>>
>>>>> objObjectiveSummary = objSummary;
>>>>> displayStrandSummary();
>>>>> });
>>>>>
>>>>> Where StrandSummary is my java class converted to dwr.
>>>>>
>>> objParametersBD
>>>
>>>>> and objObjectiveSummary are global javascript objects.
>>>>>
>>>>> The problem is when I call "buildStrandSummary" it is taking around
>>>>> 20sec
>>>>> to return me the callback.
>>>>> When I checked the java classes, the entire logic and query building
>>>>>
>>> is
>>>
>>>>> beging done in around 2 sec.
>>>>> In these classes there are around 8 getters and setters classes
>>>>> invlolved.
>>>>>
>>>>> I just want to know the reason why this is taking time to return a
>>>>> callback.
>>>>>
>>>>> Thanks in Advance,
>>>>> Rizwan
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>>
>>>>>
>>> http://www.nabble.com/funtion-taking-time-to-return-Callback-tp24164423p24164423.html
>>>
>>>>> Sent from the DWR - Users mailing list archive at Nabble.com.
>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@...
>>>>> For additional commands, e-mail: users-help@...
>>>>>
>>>>>
>>>>>
>>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/funtion-taking-time-to-return-Callback-tp24164423p24164898.html
>>> Sent from the DWR - Users mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@...
>>> For additional commands, e-mail: users-help@...
>>>
>>>
>>>
>>
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@...
For additional commands, e-mail: users-help@...
data or have recursive data. Are you really using version of 2.0, not
2.05? I mention this because we used to have some performance issues in
building JS objects on the client. We were using string concatenation
instead of adding to and joining an array. This can cause older IE
versions to bog down. This is fixed in 2.05, but may exist in older 2.x
versions.
Have you tried calling your method from the DWR test page as Lance
initially recommended? Does this happen in all browsers (try using
Firefox)? You need to determine if the slow up on the server (DWR
serializing) or on the client. In addition to Lance's recommendation I
would recommend placing some breakpoints in your script with Firebug
(you can even place some in engine.js before and after the call
returns). To weed out DWR's serialization on the server you can grab
the source code and place a breakpoint in the marshallOutbound method on
BaseCallMarshaller.
Rizwan Ahmed wrote:
> ExtraLatencyAjaxFilter didnot solved my problem.
> Its not a simple bean converter. The return type is bean itself. That inturn
> sets 6-8 beans in that.
>
>
> Lance Java wrote:
>
>> Can you give a bit more info on the return type of the method and the
>> converter you are using?Is it a simple bean converter or is it some form
>> of
>> hibernate converter fetching unwanted rows from your DB?
>>
>> 2009/6/23 Rizwan Ahmed <rizwan.amd@...>
>>
>>
>>> Hi Lance,
>>>
>>> I will configure this and check it.
>>> I feel its not exactly clientside problem, but it is taking time to get
>>> the
>>> callback.
>>>
>>> Rizwan
>>>
>>>
>>> Lance Java wrote:
>>>
>>>> I don't suppose you've got joe's ExtraLatencyAjaxFilter configured?
>>>> <filter
>>>>
>>> class="org.directwebremoting.filter.ExtraLatencyAjaxFilter">
>>>
>>>> </filter>
>>>>
>>>> Have you tried executing from the dwr debug page? Is it some clientside
>>>> rendering taking the time?
>>>>
>>>> 2009/6/23 Rizwan Ahmed <rizwan.amd@...>
>>>>
>>>>
>>>>> Hi,
>>>>> Am using DWR 2.0.
>>>>> I have written a piece of code in javascript as:
>>>>>
>>>>> StrandSummary.buildStrandSummary(objParametersBD,
>>>>>
>>> function(objSummary){
>>>
>>>>> objObjectiveSummary = objSummary;
>>>>> displayStrandSummary();
>>>>> });
>>>>>
>>>>> Where StrandSummary is my java class converted to dwr.
>>>>>
>>> objParametersBD
>>>
>>>>> and objObjectiveSummary are global javascript objects.
>>>>>
>>>>> The problem is when I call "buildStrandSummary" it is taking around
>>>>> 20sec
>>>>> to return me the callback.
>>>>> When I checked the java classes, the entire logic and query building
>>>>>
>>> is
>>>
>>>>> beging done in around 2 sec.
>>>>> In these classes there are around 8 getters and setters classes
>>>>> invlolved.
>>>>>
>>>>> I just want to know the reason why this is taking time to return a
>>>>> callback.
>>>>>
>>>>> Thanks in Advance,
>>>>> Rizwan
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>>
>>>>>
>>> http://www.nabble.com/funtion-taking-time-to-return-Callback-tp24164423p24164423.html
>>>
>>>>> Sent from the DWR - Users mailing list archive at Nabble.com.
>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@...
>>>>> For additional commands, e-mail: users-help@...
>>>>>
>>>>>
>>>>>
>>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/funtion-taking-time-to-return-Callback-tp24164423p24164898.html
>>> Sent from the DWR - Users mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@...
>>> For additional commands, e-mail: users-help@...
>>>
>>>
>>>
>>
>
>
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