com.alee.extended.tree
Class AbstractTreeDataProvider<E extends AsyncUniqueNode>

java.lang.Object
  com.alee.extended.tree.AbstractTreeDataProvider<E>

All Implemented Interfaces:

AsyncTreeDataProvider<E>

Direct Known Subclasses:

FileTreeDataProvider, SampleDataProvider

public abstract class AbstractTreeDataProvider<E extends AsyncUniqueNode>
extends java.lang.Object
implements AsyncTreeDataProvider<E>

Abstract data provider with implemented comparator and filter getters and setters.

Author:

Mikle Garin

Field Summary

protected java.util.Comparator<E>	comparator Childs comparator.
protected Filter<E>	filter Childs filter.

Constructor Summary

AbstractTreeDataProvider()

Method Summary

java.util.Comparator<E>	getChildsComparator(E node) Returns child nodes comparator for the specified asynchronous tree node.
Filter<E>	getChildsFilter(E node) Returns child nodes filter for the specified asynchronous tree node.
boolean	isLeaf(E node) Returns false by default to allow childs load requests.
void	setChildsComparator(java.util.Comparator<E> comparator) Sets childs comparator for all nodes.
void	setChildsFilter(Filter<E> filter) Sets childs filter for all nodes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.alee.extended.tree.AsyncTreeDataProvider

getRoot, loadChilds

Field Detail

comparator

protected java.util.Comparator<E extends AsyncUniqueNode> comparator

Childs comparator.

filter

protected Filter<E extends AsyncUniqueNode> filter

Childs filter.

Constructor Detail

AbstractTreeDataProvider

public AbstractTreeDataProvider()

Method Detail

getChildsComparator

public java.util.Comparator<E> getChildsComparator(E node)

Returns child nodes comparator for the specified asynchronous tree node. No sorting applied to childs in case null is returned.

Specified by:

getChildsComparator in interface AsyncTreeDataProvider<E extends AsyncUniqueNode>

Parameters:

node - parent node

Returns:

child nodes comparator

setChildsComparator

public void setChildsComparator(java.util.Comparator<E> comparator)

Sets childs comparator for all nodes.

Parameters:

comparator - childs comparator for all nodes

getChildsFilter

public Filter<E> getChildsFilter(E node)

Returns child nodes filter for the specified asynchronous tree node. No filtering applied to childs in case null is returned.

Specified by:

getChildsFilter in interface AsyncTreeDataProvider<E extends AsyncUniqueNode>

Parameters:

node - parent node

Returns:

child nodes filter

setChildsFilter

public void setChildsFilter(Filter<E> filter)

Sets childs filter for all nodes.

Parameters:

filter - childs filter for all nodes

isLeaf

public boolean isLeaf(E node)

Returns false by default to allow childs load requests. It is recommended to override this behavior if you can easily determine whether node is leaf or not.

Specified by:

isLeaf in interface AsyncTreeDataProvider<E extends AsyncUniqueNode>

Parameters:

node - node

Returns:

false