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

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.commons.configuration.tree.xpath .ConfigurationNodeIteratorBase

All known Subclasses:   org.apache.commons.configuration.tree.xpath .ConfigurationNodeIteratorChildren,  org.apache.commons.configuration.tree.xpath .ConfigurationNodeIteratorAttribute,
ConfigurationNodeIteratorBase
abstract class ConfigurationNodeIteratorBase implements NodeIterator(Code)

A base class for implementing iterators over configuration nodes.

This class already provides common functionality for implementing the iteration process. Derived classes will implement specific behavior based on the concrete node type (child node or attribute node).

since:
   1.3
author:
   Oliver Heger
version:
   $Id: ConfigurationNodeIteratorBase.java 439648 2006-09-02 20:42:10Z oheger $

Constructor Summary
protected ConfigurationNodeIteratorBase(NodePointer parent, boolean reverse)
     Creates a new instance of ConfigurationNodeIteratorBase and initializes it.

Method Summary
protected NodePointer createNodePointer(ConfigurationNode node)
     Creates the configuration node pointer for the current position.
protected int getMaxPosition()
     Returns the maximum position for this iterator.
public NodePointer getNodePointer()
     Returns the current node pointer.
protected NodePointer getParent()
     Returns the parent node pointer.
public int getPosition()
     Returns the position of the iteration.
protected int getStartOffset()
     Returns the start offset of the iteration.
protected void initSubNodeList(List nodes)
     Initializes the list of sub nodes for the iteration.
protected int positionToIndex(int pos)
     Returns the index in the data list for the given position.
public boolean setPosition(int pos)
     Sets the position of the iteration.
protected void setStartOffset(int startOffset)
     Sets the start offset of the iteration.

Constructor Detail
ConfigurationNodeIteratorBase
protected ConfigurationNodeIteratorBase(NodePointer parent, boolean reverse)(Code)
Creates a new instance of ConfigurationNodeIteratorBase and initializes it.
Parameters:
  parent - the parent pointer
Parameters:
  reverse - the reverse flag

Method Detail
createNodePointer
protected NodePointer createNodePointer(ConfigurationNode node)(Code)
Creates the configuration node pointer for the current position. This method is called by getNodePointer(). Derived classes must create the correct pointer object.
Parameters:
  node - the current configuration node the node pointer

getMaxPosition
protected int getMaxPosition()(Code)
Returns the maximum position for this iterator. the maximum allowed position

getNodePointer
public NodePointer getNodePointer()(Code)
Returns the current node pointer. the current pointer in this iteration

getParent
protected NodePointer getParent()(Code)
Returns the parent node pointer. the parent node pointer

getPosition
public int getPosition()(Code)
Returns the position of the iteration. the position

getStartOffset
protected int getStartOffset()(Code)
Returns the start offset of the iteration. the start offset

initSubNodeList
protected void initSubNodeList(List nodes)(Code)
Initializes the list of sub nodes for the iteration. This method must be called during initialization phase.
Parameters:
  nodes - the list with the sub nodes

positionToIndex
protected int positionToIndex(int pos)(Code)
Returns the index in the data list for the given position. This method also checks the reverse flag.
Parameters:
  pos - the position (1-based) the corresponding list index

setPosition
public boolean setPosition(int pos)(Code)
Sets the position of the iteration.
Parameters:
  pos - the new position a flag if this is a valid position

setStartOffset
protected void setStartOffset(int startOffset)(Code)
Sets the start offset of the iteration. This is used when a start element was set.
Parameters:
  startOffset - the start offset

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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