org.apache.commons.configuration.tree
Class ViewNode

java.lang.Object
  org.apache.commons.configuration.tree.DefaultConfigurationNode
      org.apache.commons.configuration.tree.ViewNode

All Implemented Interfaces:

Cloneable, ConfigurationNode

public class ViewNode
extends DefaultConfigurationNode

A specialized node implementation to be used in view configurations.

Some configurations provide a logical view on the nodes of other configurations. These configurations construct their own hierarchy of nodes based on the node trees of their source configurations. This special node class can be used for this purpose. It allows child nodes and attributes to be added without changing their parent node. So a node can belong to a hierarchy of nodes of a source configuration, but be also contained in a view configuration.

Since:

1.3

Version:

$Id: ViewNode.java 561230 2007-07-31 04:17:09Z rahul $

Author:

Commons Configuration team

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.commons.configuration.tree.DefaultConfigurationNode

DefaultConfigurationNode.SubNodes

Constructor Summary

ViewNode()

Method Summary

void	addAttribute(ConfigurationNode attr) Adds an attribute to this view node.
void	addChild(ConfigurationNode child) Adds a child node to this view node.
void	appendAttributes(ConfigurationNode source) Adds all attribute nodes of the given source node to this view node.
void	appendChildren(ConfigurationNode source) Adds all child nodes of the given source node to this view node.

Methods inherited from class org.apache.commons.configuration.tree.DefaultConfigurationNode

checkState, clone, createSubNodes, getAttribute, getAttributeCount, getAttributeCount, getAttributes, getAttributes, getChild, getChildren, getChildren, getChildrenCount, getChildrenCount, getName, getParentNode, getReference, getValue, isAttribute, isDefined, removeAttribute, removeAttribute, removeAttributes, removeChild, removeChild, removeChildren, removeReference, setAttribute, setName, setParentNode, setReference, setValue, visit

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewNode

public ViewNode()

Method Detail

addAttribute

public void addAttribute(ConfigurationNode attr)

Adds an attribute to this view node. The new attribute's parent node will be saved.

Specified by:

addAttribute in interface ConfigurationNode

Overrides:

addAttribute in class DefaultConfigurationNode

Parameters:

attr - the attribute node to be added

addChild

public void addChild(ConfigurationNode child)

Adds a child node to this view node. The new child's parent node will be saved.

Specified by:

addChild in interface ConfigurationNode

Overrides:

addChild in class DefaultConfigurationNode

Parameters:

child - the child node to be added

appendAttributes

public void appendAttributes(ConfigurationNode source)

Adds all attribute nodes of the given source node to this view node.

Parameters:

source - the source node

appendChildren

public void appendChildren(ConfigurationNode source)

Adds all child nodes of the given source node to this view node.

Parameters:

source - the source node