net.percederberg.grammatica.parser

Class Production

java.lang.Object

net.percederberg.grammatica.parser.Node

net.percederberg.grammatica.parser.Production

public class Production
extends Node

A production node. This class represents a grammar production (i.e. a list of child nodes) in a parse tree. The productions are created by a parser, that adds children a according to a set of production patterns (i.e. grammar rules).

Constructor Summary

Constructors

Constructor and Description
Production(ProductionPattern pattern) Creates a new production node.

Method Summary

Modifier and Type	Method and Description
void	addChild(Node child) Adds a child node.
Node	getChildAt(int index) Returns the child node with the specified index.
int	getChildCount() Returns the number of child nodes.
int	getId() Returns the production (pattern) id.
java.lang.String	getName() Returns the production node name.
ProductionPattern	getPattern() Returns the production pattern for this production.
java.lang.String	toString() Returns a string representation of this production.

Methods inherited from class net.percederberg.grammatica.parser.Node

addValue, addValues, addValues, getAllValues, getDescendantCount, getEndColumn, getEndLine, getParent, getStartColumn, getStartLine, getValue, getValueCount, printTo, printTo, removeAllValues

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Production

public Production(ProductionPattern pattern)

Creates a new production node.

Parameters:

pattern - the production pattern

Method Detail

getPattern

public ProductionPattern getPattern()

Returns the production pattern for this production.

Returns:

the production pattern

getId

public int getId()

Returns the production (pattern) id. This value is set as a unique identifier when creating the production pattern to simplify later identification.

Specified by:

getId in class Node

Returns:

the production id

getName

public java.lang.String getName()

Returns the production node name.

Specified by:

getName in class Node

Returns:

the production node name

getChildCount

public int getChildCount()

Returns the number of child nodes.

Overrides:

getChildCount in class Node

Returns:

the number of child nodes

getChildAt

public Node getChildAt(int index)

Returns the child node with the specified index.

Overrides:

getChildAt in class Node

Parameters:

index - the child index, starting at 0

Returns:

the child node found, or null if index out of bounds

addChild

public void addChild(Node child)

Adds a child node. The node will be added last in the list of children.

Parameters:

child - the child node to add

toString

public java.lang.String toString()

Returns a string representation of this production.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of this production