prajna.text

Enum PartOfSpeech

java.lang.Object

java.lang.Enum<PartOfSpeech>

prajna.text.PartOfSpeech

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<PartOfSpeech>

public enum PartOfSpeech
extends java.lang.Enum<PartOfSpeech>

Enumeration representing parts of speech. This class also provides a conversion from the tags used in the Brown Corpus and Princeton Wordnet.

Author:

Edward Swing

Enum Constant Summary

Enum Constants

Enum Constant and Description
ADJECTIVE
ADVERB
AUXILIARY_VERB
CONJUNCTION
DETERMINER
INTERJECTION
NOUN
PREPOSITION
PRONOUN
VERB

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	canContinueClause(PartOfSpeech pos, PartOfSpeech clauseType) Determine whether the given part of speech can continue a noun or verb clause
static boolean	canStartClause(PartOfSpeech pos, PartOfSpeech clauseType) Determine whether the given part of speech can start a noun or verb clause
static PartOfSpeech	convertTag(java.lang.String tag) Convert a tag used in the Brown Corpus or Princeton WordNet to a PartOfSpeech enumerated value.
static PartOfSpeech	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static PartOfSpeech[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NOUN

public static final PartOfSpeech NOUN

PRONOUN

public static final PartOfSpeech PRONOUN

AUXILIARY_VERB

public static final PartOfSpeech AUXILIARY_VERB

VERB

public static final PartOfSpeech VERB

ADJECTIVE

public static final PartOfSpeech ADJECTIVE

ADVERB

public static final PartOfSpeech ADVERB

PREPOSITION

public static final PartOfSpeech PREPOSITION

CONJUNCTION

public static final PartOfSpeech CONJUNCTION

INTERJECTION

public static final PartOfSpeech INTERJECTION

DETERMINER

public static final PartOfSpeech DETERMINER

Method Detail

values

public static PartOfSpeech[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PartOfSpeech c : PartOfSpeech.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PartOfSpeech valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

canContinueClause

public static boolean canContinueClause(PartOfSpeech pos,
                        PartOfSpeech clauseType)

Determine whether the given part of speech can continue a noun or verb clause

Parameters:

pos - The part of speech to test

clauseType - the clause type - either NOUN or VERB

Returns:

true if the part of speech can continue the clause, false otherwise

canStartClause

public static boolean canStartClause(PartOfSpeech pos,
                     PartOfSpeech clauseType)

Determine whether the given part of speech can start a noun or verb clause

Parameters:

pos - The part of speech to test

clauseType - the clause type - either NOUN or VERB

Returns:

true if the part of speech can start the clause, false otherwise

convertTag

public static PartOfSpeech convertTag(java.lang.String tag)

Convert a tag used in the Brown Corpus or Princeton WordNet to a PartOfSpeech enumerated value. If the argument does not match one of the parts of speech, then null is returned. This might occur if the tag represents a punctuation mark.

Parameters:

tag - the tag used in the Brown Corpus

Returns:

the appropriate PartOfSpeech, or null if the tag does not match a part of speech.