Package org.apache.lucene.util.automaton

Class DaciukMihovAutomatonBuilder

java.lang.Object

org.apache.lucene.util.automaton.DaciukMihovAutomatonBuilder

@Deprecated
public final class DaciukMihovAutomatonBuilder
extends Object

Deprecated.

Visibility of this class will be reduced in a future release. Users can access this functionality directly through Automata.makeStringUnion(Iterable)

Builds a minimal, deterministic Automaton that accepts a set of strings. The algorithm requires sorted input data, but is very fast (nearly linear with the input size).

See Also:

• Automata.makeStringUnion(Iterable)
• Automata.makeBinaryStringUnion(Iterable)
• Automata.makeStringUnion(BytesRefIterator)
• Automata.makeBinaryStringUnion(BytesRefIterator)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_TERM_LENGTH	Deprecated. See Automata.MAX_STRING_UNION_TERM_LENGTH

Method Summary

Modifier and Type	Method	Description
static Automaton	build(Iterable<BytesRef> input)	Deprecated. Please see Automata.makeStringUnion(Iterable) instead

Methods inherited from class java.lang.Object

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

Field Details

MAX_TERM_LENGTH

@Deprecated
public static final int MAX_TERM_LENGTH

Deprecated.

See Automata.MAX_STRING_UNION_TERM_LENGTH

This builder rejects terms that are more than 1k chars long since it then uses recursion based on the length of the string, which might cause stack overflows.

See Also:

• Constant Field Values

Method Details

build

@Deprecated
public static Automaton build(Iterable<BytesRef> input)

Deprecated.

Please see Automata.makeStringUnion(Iterable) instead

Build a minimal, deterministic automaton from a sorted list of BytesRef representing strings in UTF-8. These strings must be binary-sorted.