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## edu.stanford.smi.protege.util
Class LazyTreeNode

    java.lang.Object
      edu.stanford.smi.protege.util.LazyTreeNode

All Implemented Interfaces:
  TreeNode

Direct Known Subclasses:
  ClsClsReferenceNode, LazyTreeRoot, ParentChildNode, ReferenceNode, SlotSubslotNode

    public abstract class LazyTreeNode

extends Object
implements TreeNode

A tree node that doesn't check its children until it is asked for them. This lazy evaluation allows the system to do "load on demand" from a database.

Author:
  Ray Fergerson

Constructor Summary
`protected` | `LazyTreeNode(LazyTreeNode parent, Object userObject)`
`protected` | `LazyTreeNode(LazyTreeNode parent, Object userObject, boolean isSorted)`

Method Summary
`void` | `childAdded(Object o)`
`void` | `childAdded(Object o, int index)`
`void` | `childRemoved(Object o)`
`Enumeration` | `children()`
`protected int` | `compareTo(Object o1, Object o2)`
`protected abstract LazyTreeNode` | `createNode(Object o)`
`protected void` | `dispose()`
`static boolean` | `equals(Object o1, Object o2)`
`boolean` | `getAllowsChildren()`
`TreeNode` | `getChildAt(int i)`
`int` | `getChildCount()`
`protected abstract int` | `getChildObjectCount()`
`protected abstract Collection` | `getChildObjects()`
`protected abstract Comparator` | `getComparator()`
`int` | `getIndex(Object o)`
`int` | `getIndex(TreeNode node)`
`LazyTreeNode` | `getLazyTreeNodeParent()`
`TreeNode` | `getParent()`
`Object` | `getUserObject()`
`int` | `getUserObjectIndex(Object o)`
`boolean` | `isDuplicate()`
`boolean` | `isLeaf()`
`boolean` | `isSorted()`
`protected void` | `loadChildObjects(Collection childObjects)` Do not override or call this method in a subclass, unless you know what you are doing.
`void` | `notifyChildNodeAdded(LazyTreeNode parent, int index, LazyTreeNode child)`
`void` | `notifyChildNodeRemoved(LazyTreeNode parent, int index, LazyTreeNode child)`
`void` | `notifyNodeChanged(LazyTreeNode node)`
`void` | `notifyNodeStructureChanged(LazyTreeNode node)`
`void` | `reload()`
`void` | `reload(Object userObject)`
`protected void` | `setIsLoaded(boolean isLoaded)` Do not call this method unless you know exactly what you are doing.
`String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### LazyTreeNode

    protected LazyTreeNode(LazyTreeNode parent,
                           Object userObject)

### LazyTreeNode

    protected LazyTreeNode(LazyTreeNode parent,
                           Object userObject,
                           boolean isSorted)

Method Detail

### isDuplicate

    public boolean isDuplicate()

### childAdded

    public void childAdded(Object o)

### compareTo

    protected int compareTo(Object o1,
                            Object o2)

### childAdded

    public void childAdded(Object o,
                           int index)

### childRemoved

    public void childRemoved(Object o)

### children

    public Enumeration children()

  Specified by:
    `children` in interface `TreeNode`

### createNode

    protected abstract LazyTreeNode createNode(Object o)

### dispose

    protected void dispose()

### setIsLoaded

    protected void setIsLoaded(boolean isLoaded)

  Do not call this method unless you know exactly what you are doing.

### getAllowsChildren

    public boolean getAllowsChildren()

  Specified by:
    `getAllowsChildren` in interface `TreeNode`

### getChildAt

    public TreeNode getChildAt(int i)

  Specified by:
    `getChildAt` in interface `TreeNode`

### getChildCount

    public int getChildCount()

  Specified by:
    `getChildCount` in interface `TreeNode`

### getChildObjectCount

    protected abstract int getChildObjectCount()

### getChildObjects

    protected abstract Collection getChildObjects()

### getComparator

    protected abstract Comparator getComparator()

### getIndex

    public int getIndex(Object o)

### getIndex

    public int getIndex(TreeNode node)

  Specified by:
    `getIndex` in interface `TreeNode`

### getLazyTreeNodeParent

    public LazyTreeNode getLazyTreeNodeParent()

### getParent

    public TreeNode getParent()

  Specified by:
    `getParent` in interface `TreeNode`

### getUserObject

    public Object getUserObject()

### getUserObjectIndex

    public int getUserObjectIndex(Object o)

### isLeaf

    public boolean isLeaf()

  Specified by:
    `isLeaf` in interface `TreeNode`

### loadChildObjects

    protected void loadChildObjects(Collection childObjects)

  Do not override or call this method in a subclass, unless you know what you are doing.

  Parameters:
    `childObjects` -

### notifyChildNodeAdded

    public void notifyChildNodeAdded(LazyTreeNode parent,
                                     int index,
                                     LazyTreeNode child)

### notifyChildNodeRemoved

    public void notifyChildNodeRemoved(LazyTreeNode parent,
                                       int index,
                                       LazyTreeNode child)

### notifyNodeChanged

    public void notifyNodeChanged(LazyTreeNode node)

### notifyNodeStructureChanged

    public void notifyNodeStructureChanged(LazyTreeNode node)

### reload

    public void reload()

### reload

    public void reload(Object userObject)

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### equals

    public static boolean equals(Object o1,
                                 Object o2)

### isSorted

    public boolean isSorted()

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