edu.stanford.nlp.ling

Class TaggedWord

java.lang.Object

edu.stanford.nlp.ling.ValueLabel

edu.stanford.nlp.ling.StringLabel

edu.stanford.nlp.ling.Word

edu.stanford.nlp.ling.TaggedWord

All Implemented Interfaces:

HasOffset, HasTag, HasWord, Label, java.io.Serializable, java.lang.Comparable<ValueLabel>

public class TaggedWord
extends Word
implements HasTag

A TaggedWord object contains a word and its tag. The value() of a TaggedWord is the Word. The tag is secondary.

Author:

Christopher Manning

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.stanford.nlp.ling.Word

EMPTY

Constructor Summary

Constructors

Constructor and Description
TaggedWord() Create a new TaggedWord.
TaggedWord(Label oldLabel) Create a new TaggedWord.
TaggedWord(Label word, Label tag) Create a new TaggedWord.
TaggedWord(java.lang.String word) Create a new TaggedWord.
TaggedWord(java.lang.String word, java.lang.String tag) Create a new TaggedWord.

Method Summary

Modifier and Type	Method and Description
static LabelFactory	factory() Return a factory for this kind of label.
LabelFactory	labelFactory() Return a factory for this kind of label (i.e., TaggedWord).
void	setFromString(java.lang.String taggedWord) Sets a TaggedWord from decoding the String passed in.
void	setFromString(java.lang.String taggedWord, java.lang.String divider)
void	setTag(java.lang.String tag) Set the tag value for the label (if one is stored).
java.lang.String	tag() Return the tag value of the label (or null if none).
java.lang.String	toString() Return a string representation of the label.
java.lang.String	toString(java.lang.String divider)

Methods inherited from class edu.stanford.nlp.ling.Word

setWord, word

Methods inherited from class edu.stanford.nlp.ling.StringLabel

beginPosition, endPosition, setBeginPosition, setEndPosition, setValue, value

Methods inherited from class edu.stanford.nlp.ling.ValueLabel

compareTo, equals, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TaggedWord

public TaggedWord()

Create a new TaggedWord. It will have null for its content fields.

TaggedWord

public TaggedWord(java.lang.String word)

Create a new TaggedWord.

Parameters:

word - The word, which will have a null tag

TaggedWord

public TaggedWord(java.lang.String word,
                  java.lang.String tag)

Create a new TaggedWord.

Parameters:

word - The word

tag - The tag

TaggedWord

public TaggedWord(Label oldLabel)

Create a new TaggedWord.

Parameters:

oldLabel - A Label. If it implements the HasWord and/or HasTag interface, then the corresponding value will be set

TaggedWord

public TaggedWord(Label word,
                  Label tag)

Create a new TaggedWord.

Parameters:

word - This word is passed to the supertype constructor

tag - The value() of this label is set as the tag of this Label

Method Detail

tag

public java.lang.String tag()

Description copied from interface: HasTag

Return the tag value of the label (or null if none).

Specified by:

tag in interface HasTag

Returns:

String the tag value for the label

setTag

public void setTag(java.lang.String tag)

Description copied from interface: HasTag

Set the tag value for the label (if one is stored).

Specified by:

setTag in interface HasTag

Parameters:

tag - The tag value for the label

toString

public java.lang.String toString()

Description copied from class: ValueLabel

Return a string representation of the label. This will just be the value() if it is non-null, and the empty string otherwise.

Specified by:

toString in interface Label

Overrides:

toString in class StringLabel

Returns:

The string representation

toString

public java.lang.String toString(java.lang.String divider)

setFromString

public void setFromString(java.lang.String taggedWord)

Sets a TaggedWord from decoding the String passed in. The String is divided according to the divider character (usually, "/"). We assume that we can always just divide on the rightmost divider character, rather than trying to parse up escape sequences. If the divider character isn't found in the word, then the whole string becomes the word, and the tag is null.

Specified by:

setFromString in interface Label

Overrides:

setFromString in class StringLabel

Parameters:

taggedWord - The word that will go into the Word

setFromString

public void setFromString(java.lang.String taggedWord,
                          java.lang.String divider)

labelFactory

public LabelFactory labelFactory()

Return a factory for this kind of label (i.e., TaggedWord). The factory returned is always the same one (a singleton).

Specified by:

labelFactory in interface Label

Overrides:

labelFactory in class Word

Returns:

The label factory

factory

public static LabelFactory factory()

Return a factory for this kind of label.

Returns:

The label factory