edu.stanford.nlp.parser.lexparser
Class BinaryRule

java.lang.Object
  edu.stanford.nlp.parser.lexparser.BinaryRule

All Implemented Interfaces:

Rule, java.io.Serializable, java.lang.Comparable<BinaryRule>

public class BinaryRule
extends java.lang.Object
implements Rule, java.lang.Comparable<BinaryRule>, java.io.Serializable

Binary rules (ints for parent, left and right children)

Author:

Dan Klein, Christopher Manning

See Also:

Serialized Form

Field Summary

int	leftChild
int	parent
int	rightChild
float	score Score should be a log probability

Constructor Summary

BinaryRule(int parent, int leftChild, int rightChild)
Create a new BinaryRule with the parent and children coded as ints.

BinaryRule(int parent, int leftChild, int rightChild, double score)

BinaryRule(java.lang.String s, Index<java.lang.String> index)
Creates a BinaryRule from String s, assuming it was created using toString().

Method Summary

int	compareTo(BinaryRule br)
boolean	equals(java.lang.Object o)
int	hashCode()
int	parent()
float	score()
java.lang.String	toString()
java.lang.String	toString(Index<java.lang.String> index)
java.lang.String	toStringNoScore(Index<java.lang.String> index)

Methods inherited from class java.lang.Object

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

Field Detail

parent

public int parent

score

public float score

Score should be a log probability

leftChild

public int leftChild

rightChild

public int rightChild

Constructor Detail

BinaryRule

public BinaryRule(int parent,
                  int leftChild,
                  int rightChild)

Create a new BinaryRule with the parent and children coded as ints. Score defaults to Float.NaN.

Parameters:

parent - The parent int

leftChild - The left child int

rightChild - The right child int

BinaryRule

public BinaryRule(int parent,
                  int leftChild,
                  int rightChild,
                  double score)

BinaryRule

public BinaryRule(java.lang.String s,
                  Index<java.lang.String> index)

Creates a BinaryRule from String s, assuming it was created using toString().

Parameters:

s - A String in which the binary rule is represented as parent, left-child, right-child, score, with the items quoted as needed

index - Index used to convert String names to ints

Method Detail

score

public float score()

Specified by:

score in interface Rule

parent

public int parent()

Specified by:

parent in interface Rule

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(Index<java.lang.String> index)

toStringNoScore

public java.lang.String toStringNoScore(Index<java.lang.String> index)

compareTo

public int compareTo(BinaryRule br)

Specified by:

compareTo in interface java.lang.Comparable<BinaryRule>