Class RunAutomaton

Finite-state automaton with fast run operation.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

Inheritance

System.Object

RunAutomaton

ByteRunAutomaton

CharacterRunAutomaton

Namespace: Lucene.Net.Util.Automaton

Assembly: Lucene.Net.dll

Syntax

public abstract class RunAutomaton : object

Constructors

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RunAutomaton(Automaton, Int32, Boolean)

Constructs a new RunAutomaton from a deterministic Automaton.

Declaration

public RunAutomaton(Automaton a, int maxInterval, bool tableize)

Parameters

Type	Name	Description
Automaton	a	An automaton.
System.Int32	maxInterval
System.Boolean	tableize

Fields

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m_accept

Declaration

protected readonly bool[] m_accept

Field Value

Type	Description
System.Boolean[]

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m_initial

Declaration

protected readonly int m_initial

Field Value

Type	Description
System.Int32

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m_transitions

Declaration

protected readonly int[] m_transitions

Field Value

Type	Description
System.Int32[]

Properties

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Count

Returns number of states in automaton.

NOTE: This was size() in Lucene.

Declaration

public int Count { get; }

Property Value

Type	Description
System.Int32

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InitialState

Returns initial state.

Declaration

public int InitialState { get; }

Property Value

Type	Description
System.Int32

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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GetCharIntervals()

Returns array of codepoint class interval start points. The array should not be modified by the caller.

Declaration

public int[] GetCharIntervals()

Returns

Type	Description
System.Int32[]

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GetHashCode()

Declaration

public override int GetHashCode()

Returns

Type	Description
System.Int32

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IsAccept(Int32)

Returns acceptance status for given state.

Declaration

public bool IsAccept(int state)

Parameters

Type	Name	Description
System.Int32	state

Returns

Type	Description
System.Boolean

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Step(Int32, Int32)

Returns the state obtained by reading the given char from the given state. Returns -1 if not obtaining any such state. (If the original Automaton had no dead states, -1 is returned here if and only if a dead state is entered in an equivalent automaton with a total transition function.)

Declaration

public int Step(int state, int c)

Parameters

Type	Name	Description
System.Int32	state
System.Int32	c

Returns

Type	Description
System.Int32

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ToString()

Returns a string representation of this automaton.

Declaration

public override string ToString()

Returns

Type	Description
System.String