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 1206488 2011-11-26 16:42:41Z oheger $

Author:

Commons Configuration team

Nested Class Summary

Nested classes/interfaces inherited from class DefaultConfigurationNode

DefaultConfigurationNode.SubNodes

Constructor Summary

Constructors

Constructor	Description
ViewNode()

Method Summary

Modifier and Type	Method	Description
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 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 Object

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

Constructor Details

ViewNode

public ViewNode()

Method Details

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