edu.stanford.nlp.parser.shiftreduce

Class BinaryTransition

java.lang.Object

edu.stanford.nlp.parser.shiftreduce.BinaryTransition

All Implemented Interfaces:

Transition, Serializable

public class BinaryTransition
extends Object
implements Transition

Transition that makes a binary parse node in a partially finished tree.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BinaryTransition.Side

Field Summary

Fields

Modifier and Type	Field and Description
String	label
BinaryTransition.Side	side Which side the head is on

Constructor Summary

Constructors

Constructor and Description
BinaryTransition(String label, BinaryTransition.Side side)

Method Summary

Modifier and Type	Method and Description
State	apply(State state) Add a binary node to the existing node on top of the stack
State	apply(State state, double scoreDelta) Add a binary node to the existing node on top of the stack
boolean	equals(Object o)
int	hashCode()
boolean	isBinarized()
boolean	isLegal(State state, List<ParserConstraint> constraints) Legal as long as there are at least two items on the state's stack.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

label

public final String label

side

public final BinaryTransition.Side side

Which side the head is on

Constructor Detail

BinaryTransition

public BinaryTransition(String label,
                        BinaryTransition.Side side)

Method Detail

isLegal

public boolean isLegal(State state,
                       List<ParserConstraint> constraints)

Legal as long as there are at least two items on the state's stack.

Specified by:

isLegal in interface Transition

isBinarized

public boolean isBinarized()

apply

public State apply(State state)

Add a binary node to the existing node on top of the stack

Specified by:

apply in interface Transition

apply

public State apply(State state,
                   double scoreDelta)

Add a binary node to the existing node on top of the stack

Specified by:

apply in interface Transition

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object