se.entitymanager.presentation.swing
Class EntityTreeNode

java.lang.Object
  javax.swing.tree.DefaultMutableTreeNode
      se.entitymanager.presentation.swing.EntityTreeNode

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, javax.swing.tree.MutableTreeNode, javax.swing.tree.TreeNode

public class EntityTreeNode
extends javax.swing.tree.DefaultMutableTreeNode

A DefaultMutableTreeNode for entities.

See Also:

Serialized Form

Field Summary

private boolean	childrenLoaded Flag that indicates whether the children of this node have been loaded.
private LogicFacade	logicFacade The logic facade to access the entities.
private SwingPresentationFacade	presentationFacade The presentation facade object, this object belongs to.

Fields inherited from class javax.swing.tree.DefaultMutableTreeNode

allowsChildren, children, EMPTY_ENUMERATION, parent, userObject

Constructor Summary

EntityTreeNode(SwingPresentationFacade presentationFacade, EntityInterface entity)
Constructs a tree node for entity for a presentationFacade.

Method Summary

EntityInterface	getEntity() Returns the entity the node is displaying
boolean	isLeaf() Returns whether this node is a leaf.
protected void	loadChildren() Loads the children of this entity.

Methods inherited from class javax.swing.tree.DefaultMutableTreeNode

add, breadthFirstEnumeration, children, clone, depthFirstEnumeration, getAllowsChildren, getChildAfter, getChildAt, getChildBefore, getChildCount, getDepth, getFirstChild, getFirstLeaf, getIndex, getLastChild, getLastLeaf, getLeafCount, getLevel, getNextLeaf, getNextNode, getNextSibling, getParent, getPath, getPathToRoot, getPreviousLeaf, getPreviousNode, getPreviousSibling, getRoot, getSharedAncestor, getSiblingCount, getUserObject, getUserObjectPath, insert, isNodeAncestor, isNodeChild, isNodeDescendant, isNodeRelated, isNodeSibling, isRoot, pathFromAncestorEnumeration, postorderEnumeration, preorderEnumeration, remove, remove, removeAllChildren, removeFromParent, setAllowsChildren, setParent, setUserObject, toString

Methods inherited from class java.lang.Object

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

Field Detail

presentationFacade

private SwingPresentationFacade presentationFacade

The presentation facade object, this object belongs to.

childrenLoaded

private boolean childrenLoaded

Flag that indicates whether the children of this node have been loaded.

logicFacade

private LogicFacade logicFacade

The logic facade to access the entities.

Constructor Detail

EntityTreeNode

public EntityTreeNode(SwingPresentationFacade presentationFacade,
                      EntityInterface entity)

Constructs a tree node for entity for a presentationFacade.

Parameters:

presentationFacade - the presentation facade

entity - the entity

Method Detail

loadChildren

protected void loadChildren()

Loads the children of this entity.

This is known as "lazy loading" and improves performance.

isLeaf

public boolean isLeaf()

Returns whether this node is a leaf.

Specified by:

isLeaf in interface javax.swing.tree.TreeNode

Overrides:

isLeaf in class javax.swing.tree.DefaultMutableTreeNode

Returns:

true if this node is a leaf, false otherwise

getEntity

public EntityInterface getEntity()

Returns the entity the node is displaying

Returns:

entity the entity