Parameters are not passed directly as method arguments in plain UIMA. To access parameters in a component, you obtain the UIMAContext from the component and from it you can get the parameter values. Here an excerpt on how to access a parameter value from InlineXmlCasConsumer:
public static final String PARAM_OUTPUTDIR = "OutputDirectory"; public void initialize() throws ResourceInitializationException { mOutputDir = new File(((String) getConfigParameterValue(PARAM_OUTPUTDIR)).trim()); An alternative way to access parameter is provided by the uimaFIT library [1]. E.g. you could define a parameter field like this: public static final String PARAM_OUTPUTDIR = "OutputDirectory"; @ConfigurationParameter(name=PARAM_OUTPUTDIR, mandatory=true) private File outputDirectory The parameter value is set in the analysis engine description, which is typically an XML file created through the component description editor in Eclipse. It is also possible to generate such a description programmatically. The uimaFIT library offers a convenient API to do so, wrapping the more verbose UIMA API. E.g. you could configure a component like this: AnalysisEngineFactory.createEngineDescription(MyComponent.class MyComponent.PARAM_OUTPUTDIR, new File("/data/targetfolder")); or AnalysisEngineFactory.createEngineDescription(MyComponent.class MyComponent.PARAM_OUTPUTDIR, "/data/targetfolder"); If you like, you can use uimaFIT to configure plain old non-fit UIMA components like RegExAnnotator, but you'll have to set all parameters explicitly as uimaFIT does not know default parameter values unless a component declares the @ConfigurationParameter Java annotations. Cheers, -- Richard [1] http://uima.apache.org/uimafit.html On 29.05.2014, at 06:11, jefferyyuan <jefferyyuan...@gmail.com> wrote: > One requirement of our text mining project is to allow user to specify the > regex and corresponding type, uima will parse the text and return found match. > > > I am wondering whether we can create an Annotator(maybe modify or extend > com.commvault.uima.annotator.regex.impl.RegExAnnotator) to accept the regex > and corresponding type user spcfied, and run regex match against the text. > > > But checked CasAnnotator_ImplBase class, especially the process(CAS aCAS) > method, didn't find any way to pass and read extra parameters. > > Thanks in advance for any help.