simplenlg.features

Enum Inflection

java.lang.Object

java.lang.Enum<Inflection>

simplenlg.features.Inflection

All Implemented Interfaces:

Serializable, Comparable<Inflection>

public enum Inflection
extends Enum<Inflection>

An enumeration representing the different types of morphology patterns used by the basic morphology processor included with SimpleNLG. This enumeration is a way of informing the morphology processor which set of rules should be used when inflecting the word.

The pattern is recorded in the Feature.PATTERN feature and applies to adjectives, nouns and verbs.

It should be noted that the morphology processor will use user-defined inflections or those found in a lexicon first before applying the supplied rules.

Version:

4.0

Author:

D. Westwater, University of Aberdeen.

Enum Constant Summary

Enum Constants

Enum Constant and Description
GRECO_LATIN_REGULAR The morphology processor has simple rules for pluralising Greek and Latin nouns.
INVARIANT The value for words which are invariant, that is, are never inflected.
IRREGULAR A word having an irregular pattern essentially means that none of the supplied rules can be used to correctly inflect the word.
REGULAR Regular patterns represent the default rules when dealing with inflections.
REGULAR_DOUBLE Regular double patterns apply to verbs where the last consonant is duplicated before applying the new suffix.
UNCOUNT The value for uncountable nouns, which are not inflected in their plural form.

Method Summary

Modifier and Type	Method and Description
static Inflection	getInflCode(String code) convenience method: parses an inflectional code such as "irreg|woman|women" to retrieve the first element, which is the code itself, then maps it to the value of Inflection.
static Inflection	valueOf(String name) Returns the enum constant of this type with the specified name.
static Inflection[]	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

GRECO_LATIN_REGULAR

public static final Inflection GRECO_LATIN_REGULAR

The morphology processor has simple rules for pluralising Greek and Latin nouns. The full list can be found in the explanation of the morphology processor. An example would be turning focus into foci. The Greco-Latin rules are generally more complex than the basic rules.

IRREGULAR

public static final Inflection IRREGULAR

A word having an irregular pattern essentially means that none of the supplied rules can be used to correctly inflect the word. The inflection should be defined by the user or appear in the lexicon. sheep is an example of an irregular noun.

REGULAR

public static final Inflection REGULAR

Regular patterns represent the default rules when dealing with inflections. A full list can be found in the explanation of the morphology processor. An example would be adding -s to the end of regular nouns to pluralise them.

REGULAR_DOUBLE

public static final Inflection REGULAR_DOUBLE

Regular double patterns apply to verbs where the last consonant is duplicated before applying the new suffix. For example, the verb tag has a regular double pattern as its inflected forms include tagged and tagging.

UNCOUNT

public static final Inflection UNCOUNT

The value for uncountable nouns, which are not inflected in their plural form.

INVARIANT

public static final Inflection INVARIANT

The value for words which are invariant, that is, are never inflected.

Method Detail

values

public static Inflection[] 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 (Inflection c : Inflection.values())
    System.out.println(c);

Returns:

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

valueOf

public static Inflection valueOf(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:

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

NullPointerException - if the argument is null

getInflCode

public static Inflection getInflCode(String code)

convenience method: parses an inflectional code such as "irreg|woman|women" to retrieve the first element, which is the code itself, then maps it to the value of Inflection.

Parameters:

code - -- the string representing the inflection. The strings are those defined in the NIH Lexicon.

Returns:

the Inflection