Package EDU.purdue.jtb.parser.syntaxtree

Class NodeSequence

java.lang.Object

EDU.purdue.jtb.parser.syntaxtree.NodeSequence

All Implemented Interfaces:

INode, INodeList, java.io.Serializable

public class NodeSequence
extends java.lang.Object
implements INodeList

Represents a sequence of nodes (x y z ...) nested within a choice (|), list (+), optional list (*), or optional node (? or []), e.g. ' ( A B )+ ' or ' [ C D E ] '.
The class stores the nodes list in an ArrayList.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
java.util.ArrayList<INode>	nodes	The list of nodes

Fields inherited from interface EDU.purdue.jtb.parser.syntaxtree.INode

LS

Constructor Summary

Constructors

Constructor	Description
NodeSequence()	Initializes an empty NodeSequence with a default allocation.
NodeSequence(int sz)	Initializes an empty NodeSequence with a given allocation.
NodeSequence(int sz, INode firstNode)	Initializes an empty NodeSequence with a given allocation and adds a first node.
NodeSequence(INode firstNode)	Initializes an empty NodeSequence with a default allocation and adds a first node.

Method Summary

Modifier and Type	Method	Description
int	accept(IIntVisitor vis)	Accepts a IIntVisitor visitor with user return data.
void	accept(IVoidVisitor vis)	Accepts a IVoidVisitor visitor} visitor with user return data.
void	addNode(INode n)	Adds a node to the NodeSequence.
INode	elementAt(int i)	Gets the node in the list at a given position.
java.util.Iterator<INode>	elements()	Returns an iterator on the nodes list.
int	size()	Returns the number of nodes in the list.

Methods inherited from class java.lang.Object

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

Field Detail

nodes

public java.util.ArrayList<INode> nodes

The list of nodes

Constructor Detail

NodeSequence

public NodeSequence()

Initializes an empty NodeSequence with a default allocation.

NodeSequence

public NodeSequence(int sz)

Initializes an empty NodeSequence with a given allocation.

Parameters:

sz - - the list size

NodeSequence

public NodeSequence(INode firstNode)

Initializes an empty NodeSequence with a default allocation and adds a first node.

Parameters:

firstNode - - the node to add

NodeSequence

public NodeSequence(int sz,
                    INode firstNode)

Initializes an empty NodeSequence with a given allocation and adds a first node.

Parameters:

sz - - the list size

firstNode - - the node to add

Method Detail

addNode

public void addNode(INode n)

Adds a node to the NodeSequence.

Specified by:

addNode in interface INodeList

Parameters:

n - - the node to add

elementAt

public INode elementAt(int i)

Gets the node in the list at a given position.

Specified by:

elementAt in interface INodeList

Parameters:

i - - the node's position

Returns:

the node

elements

public java.util.Iterator<INode> elements()

Returns an iterator on the nodes list.

Specified by:

elements in interface INodeList

Returns:

the iterator

size

public int size()

Returns the number of nodes in the list.

Specified by:

size in interface INodeList

Returns:

the list size

accept

public int accept(IIntVisitor vis)

Accepts a IIntVisitor visitor with user return data.

Specified by:

accept in interface INode

Parameters:

vis - - the visitor

Returns:

the user Return data

accept

public void accept(IVoidVisitor vis)

Accepts a IVoidVisitor visitor} visitor with user return data.

Specified by:

accept in interface INode

Parameters:

vis - - the visitor