ewe.data
Class MutableTreeNodeObject

java.lang.Object
  ewe.data.MutableTreeNodeObject

All Implemented Interfaces:

MutableTreeNode, TreeNode

public class MutableTreeNodeObject

extends Object

implements MutableTreeNode

Field Summary

protected Vector	children The children of this Node.
protected TreeNode	parent The parent of this Node.

Constructor Summary

MutableTreeNodeObject()

Method Summary

void	addChild(MutableTreeNode ch) Add a child to this TreeNode at the end of the child list.
boolean	canExpand() Returns whether this node is expandable.
boolean	collapse() Tell it that it can release its children.
boolean	expand() Tell it to expand (ie gather its children).
TreeNode	getChild(int index) Get the child at the specified index.
int	getChildCount() Get the number of children that this object has.
Iterator	getChildren() Get an Iterator for the children.
TreeNode	getParent() Get the parent of this object.
int	indexOfChild(TreeNode child) Return the index of the specified child.
void	insertChild(MutableTreeNode ch, int index) Insert a child at the specified index.
boolean	isLeaf() Returns whether this is a node or leaf.
void	removeChild(MutableTreeNode ch) Remove a child from this TreeNode.
void	setParent(TreeNode p) Set the parent of this TreeNode.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, toString

Field Detail

parent

protected TreeNode parent

The parent of this Node.

children

protected Vector children

The children of this Node. This will be NULL until children are added.

Constructor Detail

MutableTreeNodeObject

public MutableTreeNodeObject()

Method Detail

getChild

public TreeNode getChild(int index)

Description copied from interface: TreeNode

Get the child at the specified index.

Specified by:

getChild in interface TreeNode

getChildren

public Iterator getChildren()

Description copied from interface: TreeNode

Get an Iterator for the children.

Specified by:

getChildren in interface TreeNode

getChildCount

public int getChildCount()

Description copied from interface: TreeNode

Get the number of children that this object has.

Specified by:

getChildCount in interface TreeNode

getParent

public TreeNode getParent()

Description copied from interface: TreeNode

Get the parent of this object.

Specified by:

getParent in interface TreeNode

setParent

public void setParent(TreeNode p)

Description copied from interface: MutableTreeNode

Set the parent of this TreeNode.

Specified by:

setParent in interface MutableTreeNode

removeChild

public void removeChild(MutableTreeNode ch)

Description copied from interface: MutableTreeNode

Remove a child from this TreeNode.

Specified by:

removeChild in interface MutableTreeNode

addChild

public void addChild(MutableTreeNode ch)

Description copied from interface: MutableTreeNode

Add a child to this TreeNode at the end of the child list. If the child is already in the child list it will be removed and then added to the end.

Specified by:

addChild in interface MutableTreeNode

insertChild

public void insertChild(MutableTreeNode ch,
                        int index)

Description copied from interface: MutableTreeNode

Insert a child at the specified index. If the index is greater than the number of children, the child will be appended to the child list. If the child is already in the child list it will be removed and then re-inserted at the specified index.

Specified by:

insertChild in interface MutableTreeNode

indexOfChild

public int indexOfChild(TreeNode child)

Description copied from interface: TreeNode

Return the index of the specified child. This will return -1 if the parameter is not a child of this TreeNode.

Specified by:

indexOfChild in interface TreeNode

canExpand

public boolean canExpand()

Description copied from interface: TreeNode

Returns whether this node is expandable.

Specified by:

canExpand in interface TreeNode

expand

public boolean expand()

Description copied from interface: TreeNode

Tell it to expand (ie gather its children).

Specified by:

expand in interface TreeNode

isLeaf

public boolean isLeaf()

Description copied from interface: TreeNode

Returns whether this is a node or leaf.

Specified by:

isLeaf in interface TreeNode

collapse

public boolean collapse()

Description copied from interface: TreeNode

Tell it that it can release its children.

Specified by:

collapse in interface TreeNode