| how to set parameter values via BIRT API [message #77342] |
Tue, 27 September 2005 11:08  |
Eclipse User |
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Originally posted by: gerald.zaynard.ids-scheer.com
How can i set the value of a parameter?
Using setValue in IGetParameterDefinitionTask doesn't work. I can retrieve
any informations of all parameters (as shown in the examples) but i can't
set any value.
How can this be done?
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| Re: how to set parameter values via BIRT API [message #84189 is a reply to message #82711] |
Wed, 26 October 2005 11:07  |
| Eclipse User |
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Mike,
Sorry for the delay on this message. I missed it with my News Reader.
I know that programmatically setting the reports is a bit confusing, but we
are working on better docs for this area. The basic steps should be like
the following.
1 - ReportEngine.createGetParameterDefinitionTask( )
2 - .If you want the defaults for your report to work
set IGetParameterDefnTask.evaluateDefaults( ). This prevents you from
having to setvalue on every parameter.
3 - call IGetParameterDefnTask.getDefaultValues( ), which will return a
hashmap.
This hashmap will be empty if you didnt call evaluateDefaults.
4 -You should be able to then call IGetParameterDefnTask.setValue( ), to set
individual
parameter values.
5 - If you call IGetParameterDefnTask.getDefaultValues( ), it should return
a HashMap that
has the default values, plus the ones set using SetValue(). This HashMap
can then be passed to the IRunAndRenderTask.setParameterValues() function
You have to use IRunAndRenderTask to set values to pass the modifed
parameters to the engine.
Hope this makes sense.
Jason Weathesby
BIRT PMC
"Mike Fox" <foxm@us.ibm.com> wrote in message
news:1e11d794981349a65a9c585a9efcd330$1@www.eclipse.org...
>I was stumped by this also until I saw Jason's reply. While my code now
>seems to work, could we get a bit more explanation.
>
> I also found that IGetParameterDefinitionTask.setValue() doesn't work.
> While IRunAndRenderTask.setParameterValue(String, Object) does work,
> IRunAndRenderTask.getParameterValues() always seems to return an empty
> map.
>
> Thus, I can read the parameters using IGetParameterDefinitionTask but I
> must use IRunAndRenderTask to set them even though both tasks appear to be
> capable of both get and set operations.
>
> I haven't tried IRunAndRenderTask.setParameterValues(map) yet.
>
> Am I missing something?
>
> thanks
>
> Mike
>
>
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| Re: how to set parameter values via BIRT API [message #89417 is a reply to message #84189] |
Wed, 09 November 2005 15:30 |
| Eclipse User |
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This has changed significantly in BIRT V2M2.
IGetParameterDefnTask.evaluateDefaults() is deprecated. when you look in
the javadoc, it says to use getDefaultParameterValues(), but that is also
deprecated.
IEngineTask.setParameterValues() is deprecated.
Also, IGetParameterDefnTGask.setValue() doesn't seem to do much that I can
see.
The following code seems to work for me:
IGetParameterDefinitionTask paramTask =
rptEngine.createGetParameterDefinitionTask(report);
paramTask.setLocale(locale);
Iterator paramIter = paramTask.getParameterDefns(false).iterator();
//returns all entries
Map birtParamDef = paramTask.getDefaultValues(); //default values
while(paramIter.hasNext())
{
IParameterDefnBase rptParam = (IParameterDefnBase)paramIter.next();
if (rptParam.getParameterType() != IParameterDefnBase.SCALAR_PARAMETER)
{
continue; //only process scalar parameters
}
String paramName = rptParam.getName();
IScalarParameterDefn paramDef = (IScalarParameterDefn)rptParam; //cast
to scalar type
String userValue = (String)getUserValue(paramName); //user's prompt
response
//process appropriate data type for parameter
Object valueObj = prepParameter( //returns java type, String, Double,
Date, etc.
paramDef,
paramName,
userValue,
birtParamDef.get(paramName),
locale);
birtParamDef.remove(paramName);
birtParamDef.put(paramName, valueObj);
} //end while
rrTask.setValues((HashMap)birtParamDef); //rrTask is type IRunAndRenderTask
Note that rrTask.setValues requires a HashMap argument, not a Map. Strange.
Has anybody else made this work with the M2 build?
thanks
Mike Fox
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