edu.stanford.nlp.ling
Class CoreAnnotations.BeginIndexAnnotation

java.lang.Object
  edu.stanford.nlp.ling.CoreAnnotations.BeginIndexAnnotation

All Implemented Interfaces:

CoreAnnotation<java.lang.Integer>, TypesafeMap.Key<CoreMap,java.lang.Integer>

Enclosing class:

CoreAnnotations

public static class CoreAnnotations.BeginIndexAnnotation
extends java.lang.Object
implements CoreAnnotation<java.lang.Integer>

This indexes the beginning of a span of words, e.g., a constituent in a tree. See Tree.indexSpans(int). This annotation counts tokens. It standardly indexes from 1 (like IndexAnnotation). The reasons for this are: (i) Talking about the first word of a sentence is kind of natural, and (ii) We use index 0 to refer to an imaginary root in dependency output.

Constructor Summary

CoreAnnotations.BeginIndexAnnotation()

Method Summary

java.lang.Class<java.lang.Integer>

getType() Returns the type associated with this annotation.

Methods inherited from class java.lang.Object

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

Constructor Detail

CoreAnnotations.BeginIndexAnnotation

public CoreAnnotations.BeginIndexAnnotation()

Method Detail

getType

public java.lang.Class<java.lang.Integer> getType()

Description copied from interface: CoreAnnotation

Returns the type associated with this annotation. This method must return the same class type as its value type parameter. It feels like one should be able to get away without this method, but because Java erases the generic type signature, that info disappears at runtime.

Specified by:

getType in interface CoreAnnotation<java.lang.Integer>