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Java Source Code / Java Documentation » Library » Apache commons configuration 1.4 src » org.apache.commons.configuration.tree

Source Cross Reference Class Diagram Java Document (Java Doc)

org.apache.commons.configuration.tree .ConfigurationNodeVisitor

All known Subclasses:   org.apache.commons.configuration.tree .ConfigurationNodeVisitorAdapter,
ConfigurationNodeVisitor
public interface ConfigurationNodeVisitor (Code)

Definition of a Visitor interface for a configuration node structure.

The ConfigurationNode interface defines a visit(), which simplifies traversal of a complex node hierarchy. A configuration node implementation must provide a way of visiting all nodes in the current hierarchy. This is a typical application of the GoF Visitor pattern.

since:
   1.3
See Also:   ConfigurationNode
author:
   Oliver Heger

Method Summary
boolean terminate()
     Returns a flag whether the actual visit process should be aborted.
void visitAfterChildren(ConfigurationNode node)
     Visits the specified node.
void visitBeforeChildren(ConfigurationNode node)
     Visits the specified node.

Method Detail
terminate
boolean terminate()(Code)
Returns a flag whether the actual visit process should be aborted. This method allows a visitor implementation to state that it does not need any further data. It may be used e.g. by visitors that search for a certain node in the hierarchy. After that node was found, there is no need to process the remaining nodes, too. a flag if the visit process should be stopped

visitAfterChildren
void visitAfterChildren(ConfigurationNode node)(Code)
Visits the specified node. This method is called after eventually existing children of this node have been processed.
Parameters:
  node - the node to be visited

visitBeforeChildren
void visitBeforeChildren(ConfigurationNode node)(Code)
Visits the specified node. This method is called before eventually existing children of this node are processed.
Parameters:
  node - the node to be visited

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