org.apache.uima.analysis_component
Class Annotator_ImplBase

java.lang.Object
  org.apache.uima.analysis_component.AnalysisComponent_ImplBase
      org.apache.uima.analysis_component.Annotator_ImplBase

All Implemented Interfaces:

AnalysisComponent

Direct Known Subclasses:

CasAnnotator_ImplBase, JCasAnnotator_ImplBase

public abstract class Annotator_ImplBase
extends AnalysisComponent_ImplBase

Base class for all annotators. An Annotator is an AnalysisComponent that may modify its input CAS, but never creates any new CASes as output. Typically, annotators should not extend this class directly, but instead extend CasAnnotator_ImplBase or JCasAnnotator_ImplBase depending on which CAS interface they wish to use.

Constructor Summary

Annotator_ImplBase()

Method Summary

int	getCasInstancesRequired() Returns 0, since annotators are not allowed to create new CAS instances.
boolean	hasNext() Returns false, since annotators are not allowed to create new CAS instances.
AbstractCas	next() Throws a UIMA_IllegalStateException, since annotators are not allowed to create new CAS instances.

Methods inherited from class org.apache.uima.analysis_component.AnalysisComponent_ImplBase

batchProcessComplete, collectionProcessComplete, destroy, getContext, getResultSpecification, initialize, reconfigure, setResultSpecification

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.uima.analysis_component.AnalysisComponent

getRequiredCasInterface, process

Constructor Detail

Annotator_ImplBase

public Annotator_ImplBase()

Method Detail

getCasInstancesRequired

public final int getCasInstancesRequired()

Returns 0, since annotators are not allowed to create new CAS instances. Only CasMultipliers are allowed to do this.

Returns:

the number of CAS instances required by this AnalysisComponent.

hasNext

public final boolean hasNext()
                      throws AnalysisEngineProcessException

Returns false, since annotators are not allowed to create new CAS instances. Only CasMultipliers are allowed to do this.

Returns:

true if this AnalysisComponent has another CAS to output, false if not.

Throws:

AnalysisEngineProcessException - if a problem occurs during processing

next

public final AbstractCas next()
                       throws AnalysisEngineProcessException

Throws a UIMA_IllegalStateException, since annotators are not allowed to create new CAS instances. Only CasMultipliers are allowed to do this.

Returns:

the next output CAS.

Throws:

AnalysisEngineProcessException - if a problem occurs during processing