Package org.apache.pinot.segment.local.utils.nativefst.mutablefst

Class MutableFSTImpl

java.lang.Object

org.apache.pinot.segment.local.utils.nativefst.mutablefst.MutableFSTImpl

All Implemented Interfaces:

MutableFST

public class MutableFSTImpl
extends Object
implements MutableFST

A mutable finite state transducer implementation that allows you to build mutable via the API. This is not thread safe; convert to an ImmutableFst if you need to share across multiple writer threads. Concurrently writing and reading to/from a mutable FST is supported.

Constructor Summary

Constructors

Constructor	Description
MutableFSTImpl()

Method Summary

Modifier and Type	Method	Description
MutableArc	addArc(MutableState startState, int outputSymbol, MutableState endState)
void	addPath(String word, int outputSymbol)	Add a path to the FST
boolean	equals(Object o)
MutableState	getStartState()	Get the initial states
int	hashCode()
MutableState	newStartState()
void	setStartState(MutableState start)	Set the initial state
void	throwIfInvalid()	throws an exception if the FST is constructed in an invalid state
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MutableFSTImpl

public MutableFSTImpl()

Method Detail

getStartState

public MutableState getStartState()

Get the initial states

Specified by:

getStartState in interface MutableFST

Returns:

setStartState

public void setStartState(MutableState start)

Set the initial state

Specified by:

setStartState in interface MutableFST

Parameters:

start - the initial state

newStartState

public MutableState newStartState()

addArc

public MutableArc addArc(MutableState startState,
                         int outputSymbol,
                         MutableState endState)

throwIfInvalid

public void throwIfInvalid()

Description copied from interface: MutableFST

throws an exception if the FST is constructed in an invalid state

Specified by:

throwIfInvalid in interface MutableFST

addPath

public void addPath(String word,
                    int outputSymbol)

Description copied from interface: MutableFST

Add a path to the FST

Specified by:

addPath in interface MutableFST

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object