Package org.apache.lucene.util.automaton

Enum Class CompiledAutomaton.AUTOMATON_TYPE

java.lang.Object

java.lang.Enum<CompiledAutomaton.AUTOMATON_TYPE>

org.apache.lucene.util.automaton.CompiledAutomaton.AUTOMATON_TYPE

All Implemented Interfaces:

Serializable, Comparable<CompiledAutomaton.AUTOMATON_TYPE>, Constable

Enclosing class:

CompiledAutomaton

public static enum CompiledAutomaton.AUTOMATON_TYPE
extends Enum<CompiledAutomaton.AUTOMATON_TYPE>

Automata are compiled into different internal forms for the most efficient execution depending upon the language they accept.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ALL	Automaton that accepts all possible strings.
NONE	Automaton that accepts no strings.
NORMAL	Catch-all for any other automata.
SINGLE	Automaton that accepts only a single fixed string.

Method Summary

Modifier and Type	Method	Description
static CompiledAutomaton.AUTOMATON_TYPE	valueOf(String name)	Returns the enum constant of this class with the specified name.
static CompiledAutomaton.AUTOMATON_TYPE[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

NONE

public static final CompiledAutomaton.AUTOMATON_TYPE NONE

Automaton that accepts no strings.

ALL

public static final CompiledAutomaton.AUTOMATON_TYPE ALL

Automaton that accepts all possible strings.

SINGLE

public static final CompiledAutomaton.AUTOMATON_TYPE SINGLE

Automaton that accepts only a single fixed string.

NORMAL

public static final CompiledAutomaton.AUTOMATON_TYPE NORMAL

Catch-all for any other automata.

Method Details

values

public static CompiledAutomaton.AUTOMATON_TYPE[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static CompiledAutomaton.AUTOMATON_TYPE valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null