Hi,
it is true that it is currently not possible to register custom property
editors.
i think there is no reason speaking against it, but there was no need to do it
so
far.
However, I did a test and I cannot reproduce your problem that a class with a
string constructor could not be used. Consider the following code that works
for me:
---
public static class CustomValue {
public String value;
public CustomValue(String aValue) {
super();
value = aValue;
}
}
public static class CustomValueAE1 extends JCasAnnotator_ImplBase {
public static final String PARAM_VALUE = "value";
@ConfigurationParameter(name = PARAM_VALUE, defaultValue = "default value",
mandatory = false)
public CustomValue param;
@Override
public void initialize(UimaContext aContext) throws
ResourceInitializationException {
super.initialize(aContext);
}
@Override
public void process(JCas aJCas) throws AnalysisEngineProcessException {
/* do nothing */
}
}
@Test
public void testCustomValueParams() throws Exception {
AnalysisEngine aed =
AnalysisEngineFactory.createEngine(CustomValueAE1.class,
CustomValueAE1.PARAM_VALUE, "my value");
CustomValueAE1 ae = new CustomValueAE1();
ae.initialize(aed.getUimaContext());
assertEquals("my value", ae.param.value);
aed = AnalysisEngineFactory.createEngine(CustomValueAE1.class);
ae = new CustomValueAE1();
ae.initialize(aed.getUimaContext());
assertEquals("default value", ae.param.value);
}
---
I suppose what you are trying to do is something like this?
---
aed = AnalysisEngineFactory.createEngine(CustomValueAE1.class,
CustomValueAE1.PARAM_VALUE, new CustomValue("other value"));
ae = new CustomValueAE1();
ae.initialize(aed.getUimaContext());
assertEquals("other value", ae.param.value);
---
True, this currently does not work, but I think that uimaFIT should probably be
changed to fall back to toString() in such a case so that adding an appropriate
toString() method to CustomValue should fix the problem.
Would you mind opening Jira issues for those cases that do not work for you?
Cheers,
-- Richard
On 06.11.2014, at 14:14, Johannes Darms <[email protected]>
wrote:
> Hey there,
>
> I'm trying to inject an Object into an UIMA Component with a
> @ConfigurationParameter Annotation. The Documentation says that I can inject
> any Object with a single String Argument Constructor. Which does not work! I
> can only inject Types that are defined in PropertyEditorRegistrySupport and
> PropertyEditorUtil. And of course there is no custom PropertyEditor defined
> for my Class which leads to an exception. Sadly the API for solving my
> problem (configure custom PropertyEditors) is encapsulated. Are there any
> restrictions and/or design decision to hide this functionality from a
> developer?
>
>
> Regards,
>
> Johannes
