edu.washington.cs.knowitall
Class Token

java.lang.Object
  edu.washington.cs.knowitall.Token

All Implemented Interfaces:

Serializable

public class Token
extends Object
implements Serializable

A representation of a token in a sentence.

Author:

schmmd

See Also:

Serialized Form

Nested Class Summary

protected static class	Token.ChunkTagExpression A regular expression that is evaluated against the chunk tag portion of a token.
protected static class	Token.Expression An expression that is evaluated against a token.
protected static class	Token.LemmaExpression A regular expression that is evaluated against the lemma portion of a token.
protected static class	Token.PosTagExpression A regular expression that is evaluated against the POS tag portion of a token.
protected static class	Token.StartTypeExpression A regular expression that is evaluated against the type portion of a token.
protected static class	Token.StringExpression A regular expression that is evaluated against the string portion of a token.
protected static class	Token.TypeExpression A regular expression that is evaluated against the type portion of a token.

Field Summary

int	index
Sentence	sentence
static com.google.common.base.Function<Token,String>	toStringFunction

Constructor Summary

Token(Sentence sentence, int index)

Method Summary

String	chunk() The chunk tag of this token.
boolean	containsType(String descriptor) Check if this token is part of a tag with the specified descriptor.
Collection<Type>	getType(String descriptor)
String	lemma() The lemma of this token.
String	pos() The part of speech tag of this token.
String	string() The string of this token.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

sentence

public final Sentence sentence

index

public final int index

toStringFunction

public static final com.google.common.base.Function<Token,String> toStringFunction

Constructor Detail

Token

public Token(Sentence sentence,
             int index)

Method Detail

containsType

public boolean containsType(String descriptor)

Check if this token is part of a tag with the specified descriptor.

Parameters:

descriptor -

Returns:

getType

public Collection<Type> getType(String descriptor)

string

public String string()

The string of this token.

Returns:

lemma

public String lemma()

The lemma of this token.

Returns:

pos

public String pos()

The part of speech tag of this token.

Returns:

chunk

public String chunk()

The chunk tag of this token.

Returns:

toString

public String toString()

Overrides:

toString in class Object