gate.creole.gazetteer

Class FSMState

java.lang.Object

gate.creole.gazetteer.FSMState

All Implemented Interfaces:

Serializable

public class FSMState
extends Object
implements Serializable

Implements a state of the deterministic finite state machine of the gazetter.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Set<Lookup>	lookupSet
protected int	myIndex The unique id of this state.
protected DefaultGazetteer.CharMap	transitionFunction The transition function of this state.

Constructor Summary

Constructors

Constructor and Description
FSMState(DefaultGazetteer owner) Constructs a new FSMState object and adds it to the list of states of the DefaultGazetteer provided as owner.

Method Summary

Methods

Modifier and Type	Method and Description
void	addLookup(Lookup lookup) Adds a new looup description to this state's lookup descriptions set
String	getEdgesGML() Returns a GML (Graph Modelling Language) representation of the edges emerging from this state.
int	getIndex() Returns the unique ID of this state.
Set<Lookup>	getLookupSet() Returns a set of Lookup objects describing the types of lookups the phrase for which this state is the final one belongs to
boolean	isFinal() Checks whether this state is a final one
FSMState	next(char chr) This method is used to access the transition function of this state.
void	put(char chr, FSMState state) Adds a new value to the transition function
void	removeLookup(Lookup lookup) Removes a looup description from this state's lookup descriptions set

Methods inherited from class java.lang.Object

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

Field Detail

transitionFunction

protected DefaultGazetteer.CharMap transitionFunction

The transition function of this state.

lookupSet

protected Set<Lookup> lookupSet

myIndex

protected int myIndex

The unique id of this state. This value is never used by the algorithms but it can be useful for graphical representations.

Constructor Detail

FSMState

public FSMState(DefaultGazetteer owner)

Constructs a new FSMState object and adds it to the list of states of the DefaultGazetteer provided as owner.

Parameters:

owner - a DefaultGazetteer object

Method Detail

put

public void put(char chr,
       FSMState state)

Adds a new value to the transition function

next

public FSMState next(char chr)

This method is used to access the transition function of this state.

getEdgesGML

public String getEdgesGML()

Returns a GML (Graph Modelling Language) representation of the edges emerging from this state.

isFinal

public boolean isFinal()

Checks whether this state is a final one

getLookupSet

public Set<Lookup> getLookupSet()

Returns a set of Lookup objects describing the types of lookups the phrase for which this state is the final one belongs to

addLookup

public void addLookup(Lookup lookup)

Adds a new looup description to this state's lookup descriptions set

removeLookup

public void removeLookup(Lookup lookup)

Removes a looup description from this state's lookup descriptions set

getIndex

public int getIndex()

Returns the unique ID of this state.