edu.stanford.nlp.parser.lexparser

Class UnaryRule

java.lang.Object

edu.stanford.nlp.parser.lexparser.UnaryRule

All Implemented Interfaces:

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

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

Unary grammar rules (with ints for parent and child).

Author:

Dan Klein, Christopher Manning

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
int	child
int	parent
float	score Score should be a log probability

Constructor Summary

Constructors

Constructor and Description
UnaryRule(int parent, int child) The score is set to Float.NaN by default.
UnaryRule(int parent, int child, double score)
UnaryRule(java.lang.String s, Index<java.lang.String> index) Decode a UnaryRule out of a String representation with help from an Index.

Method Summary

Modifier and Type	Method and Description
int	compareTo(UnaryRule ur)
boolean	equals(java.lang.Object o) A UnaryRule is equal to another UnaryRule with the same parent and child.
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

child

public int child

Constructor Detail

UnaryRule

public UnaryRule(int parent,
                 int child)

The score is set to Float.NaN by default.

Parameters:

parent - Parent state

child - Child state

UnaryRule

public UnaryRule(int parent,
                 int child,
                 double score)

UnaryRule

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

Decode a UnaryRule out of a String representation with help from an Index.

Parameters:

s - The String representation

index - The Index used to convert String to int

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)

A UnaryRule is equal to another UnaryRule with the same parent and child. The score is not included in the equality computation.

Overrides:

equals in class java.lang.Object

Parameters:

o - Object to be compared with

Returns:

Whether the object is equal to this

compareTo

public int compareTo(UnaryRule ur)

Specified by:

compareTo in interface java.lang.Comparable<UnaryRule>

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)