ec.gp.ge

Class GrammarNode

java.lang.Object

ec.gp.ge.GrammarNode

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

GrammarFunctionNode, GrammarRuleNode

public abstract class GrammarNode
extends java.lang.Object
implements java.io.Serializable

The abstract superclass of nodes used by GrammarParser to construct a parse graph to generate GEIndividuals. GrammarNode has a *head*, which typically holds the name of the node, and an array of *children*, which are themselves GrammarNodes.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GrammarNode(java.lang.String head)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) This is needed when we use a GrammarNode as a "key" in hash-map, see GrammarParser.java for details.
java.lang.String	getHead()
int	hashCode() As usual
abstract java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GrammarNode

public GrammarNode(java.lang.String head)

Method Detail

getHead

public java.lang.String getHead()

toString

public abstract java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

This is needed when we use a GrammarNode as a "key" in hash-map, see GrammarParser.java for details.

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

As usual

Overrides:

hashCode in class java.lang.Object