org.datanucleus.query.node
Class Node

java.lang.Object
  org.datanucleus.query.node.Node

Direct Known Subclasses:

ParameterNode

public class Node
extends java.lang.Object

Representation of a node in a tree of nodes. Has a parent, and a list of children. Each node has a type and a value. Optionally has a set of properties; these represent arguments when part of a method call.

Field Summary

protected java.util.List	childNodes List of child nodes in the tree below here.
protected NodeType	nodeType Type of node.
protected java.lang.Object	nodeValue Value of the node.
protected Node	parent Parent of this node.
protected java.util.List<Node>	properties List of properties for the node.
protected Symbol	symbol

Constructor Summary

Node(NodeType nodeType)

Node(NodeType nodeType, java.lang.Object nodeValue)

Method Summary

void	addProperty(Node node)
Node	appendChildNode(Node node)
Node[]	appendChildNode(Node[] node)
Node[][]	appendChildNode(Node[][] node)
Node	getChildNode(int index)
java.util.List	getChildNodes()
Node	getFirstChild()
Node	getNextChild()
java.lang.String	getNodeChildId()
java.lang.String	getNodeId()
NodeType	getNodeType()
java.lang.Object	getNodeValue()
Node	getParent()
java.util.List<Node>	getProperties()
Symbol	getSymbol()
boolean	hasNextChild()
boolean	hasProperties()
Node	insertChildNode(Node node)
Node	insertChildNode(Node node, int position)
void	removeChildNode(Node node)
void	setNodeValue(java.lang.Object val)
void	setParent(Node parent)
void	setPropertyAtPosition(int position, Node node)
void	setSymbol(Symbol symbol)
java.lang.String	toString() Method to print out the Node as a tree.

Methods inherited from class java.lang.Object

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

Field Detail

nodeType

protected NodeType nodeType

Type of node.

nodeValue

protected java.lang.Object nodeValue

Value of the node.

symbol

protected Symbol symbol

parent

protected Node parent

Parent of this node.

childNodes

protected java.util.List childNodes

List of child nodes in the tree below here.

properties

protected java.util.List<Node> properties

List of properties for the node. Used for invocation of methods, representing the arguments.

Constructor Detail

Node

public Node(NodeType nodeType)

Node

public Node(NodeType nodeType,
            java.lang.Object nodeValue)

Method Detail

getNodeType

public NodeType getNodeType()

setNodeValue

public void setNodeValue(java.lang.Object val)

getNodeValue

public java.lang.Object getNodeValue()

hasProperties

public boolean hasProperties()

getProperties

public java.util.List<Node> getProperties()

addProperty

public void addProperty(Node node)

setPropertyAtPosition

public void setPropertyAtPosition(int position,
                                  Node node)

getChildNodes

public java.util.List getChildNodes()

removeChildNode

public void removeChildNode(Node node)

insertChildNode

public Node insertChildNode(Node node)

insertChildNode

public Node insertChildNode(Node node,
                            int position)

appendChildNode

public Node appendChildNode(Node node)

appendChildNode

public Node[] appendChildNode(Node[] node)

appendChildNode

public Node[][] appendChildNode(Node[][] node)

getChildNode

public Node getChildNode(int index)

getFirstChild

public Node getFirstChild()

getNextChild

public Node getNextChild()

hasNextChild

public boolean hasNextChild()

getSymbol

public Symbol getSymbol()

setSymbol

public void setSymbol(Symbol symbol)

setParent

public void setParent(Node parent)

getParent

public Node getParent()

getNodeId

public java.lang.String getNodeId()

getNodeChildId

public java.lang.String getNodeChildId()

toString

public java.lang.String toString()

Method to print out the Node as a tree.

Overrides:

toString in class java.lang.Object

Returns:

the node tree as a string