Class CompiledAutomaton

Immutable class holding compiled details for a given Automaton. The Automaton is deterministic, must not have dead states but is not necessarily minimal.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk
Inheritance
System.Object
CompiledAutomaton
Namespace: Lucene.Net.Util.Automaton
Assembly: Lucene.Net.dll
Syntax
public class CompiledAutomaton : object

Constructors

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CompiledAutomaton(Automaton)

Declaration
public CompiledAutomaton(Automaton automaton)
Parameters
Type Name Description
Automaton automaton
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CompiledAutomaton(Automaton, Nullable<Boolean>, Boolean)

Declaration
public CompiledAutomaton(Automaton automaton, bool? finite, bool simplify)
Parameters
Type Name Description
Automaton automaton
System.Nullable<System.Boolean> finite
System.Boolean simplify

Properties

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CommonSuffixRef

Shared common suffix accepted by the automaton. Only valid for NORMAL, and only when the automaton accepts an infinite language.

Declaration
public BytesRef CommonSuffixRef { get; }
Property Value
Type Description
BytesRef
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Finite

Indicates if the automaton accepts a finite set of strings. Null if this was not computed. Only valid for NORMAL.

Declaration
public bool? Finite { get; }
Property Value
Type Description
System.Nullable<System.Boolean>
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RunAutomaton

Matcher for quickly determining if a byte[] is accepted. only valid for NORMAL.

Declaration
public ByteRunAutomaton RunAutomaton { get; }
Property Value
Type Description
ByteRunAutomaton
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SortedTransitions

Two dimensional array of transitions, indexed by state number for traversal. The state numbering is consistent with RunAutomaton.

Only valid for NORMAL.

Declaration
public Transition[][] SortedTransitions { get; }
Property Value
Type Description
Transition[][]
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Term

For PREFIX, this is the prefix term; for SINGLE this is the singleton term.

Declaration
public BytesRef Term { get; }
Property Value
Type Description
BytesRef
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Type

Declaration
public CompiledAutomaton.AUTOMATON_TYPE Type { get; }
Property Value
Type Description
CompiledAutomaton.AUTOMATON_TYPE

Methods

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Equals(Object)

Declaration
public override bool Equals(object obj)
Parameters
Type Name Description
System.Object obj
Returns
Type Description
System.Boolean
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Floor(BytesRef, BytesRef)

Finds largest term accepted by this Automaton, that's <= the provided input term. The result is placed in output; it's fine for output and input to point to the same BytesRef. The returned result is either the provided output, or null if there is no floor term (ie, the provided input term is before the first term accepted by this Automaton).

Declaration
public virtual BytesRef Floor(BytesRef input, BytesRef output)
Parameters
Type Name Description
BytesRef input
BytesRef output
Returns
Type Description
BytesRef
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GetHashCode()

Declaration
public override int GetHashCode()
Returns
Type Description
System.Int32
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GetTermsEnum(Terms)

Declaration
public virtual TermsEnum GetTermsEnum(Terms terms)
Parameters
Type Name Description
Terms terms
Returns
Type Description
TermsEnum
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ToDot()

Declaration
public virtual string ToDot()
Returns
Type Description
System.String