All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class symantec.itools.db.beans.dbnav.model.TreeNodeComponent

Object
   |
   +----symantec.itools.db.beans.dbnav.model.TreeNodeComponent

public abstract class TreeNodeComponent

extends Object

implements TreeNode

This class represents the Component from the Composite design pattern. The default implementation is for a Leaf.

The other participants in Composite pattern are: TreeNodeLeaf - the Leaf TreeNodeComposite - the Composite TreeNodeBuilder - the Client

Version:

1.0 06/13/98

Author:

Hristo Tonev

symantec.itools.db.beans.dbnav.model.TreeNodeComponent()

Default constructor

symantec.itools.db.beans.dbnav.model.TreeNodeComponent(DataItem)

addChild(TreeNodeComponent)

This method makes sence only for the composite object.

children()

Returns the children of the reciever as an Enumeration.

getAllowsChildren()

Returns true if the receiver allows children.

getChildAt(int)

Returns the child TreeNode at index childIndex.

getChildCount()

Returns the number of children TreeNodes the receiver contains.

getDataItem()

getIndex(TreeNode)

Returns the index of node in the receivers children.

getParent()

Returns the parent TreeNode of the receiver.

isLeaf()

Returns true if the receiver is a leaf.

removeChild(TreeNodeComponent)

This method makes sence only for the composite object.

setDataItem(DataItem)

setParent(TreeNodeComponent)

toString()

Overriding toString() method here is very important

public TreeNodeComponent()

Default constructor

public TreeNodeComponent(DataItem dataItem)

public void addChild(TreeNodeComponent child)

This method makes sence only for the composite object. The default implementation does nothing.

public java.util.Enumeration children()

Returns the children of the reciever as an Enumeration.

public boolean getAllowsChildren()

Returns true if the receiver allows children.

public com.sun.java.swing.tree.TreeNode getChildAt(int childIndex)

Returns the child TreeNode at index childIndex.

public int getChildCount()

Returns the number of children TreeNodes the receiver contains.

public symantec.itools.db.beans.dbnav.model.DataItem getDataItem()

public int getIndex(TreeNode node)

Returns the index of node in the receivers children. If the receiver does not contain node, -1 will be returned.

public com.sun.java.swing.tree.TreeNode getParent()

Returns the parent TreeNode of the receiver.

public boolean isLeaf()

Returns true if the receiver is a leaf.

public void removeChild(TreeNodeComponent child)

This method makes sence only for the composite object. The default implementation does nothing.

public void setDataItem(DataItem dataItem)

public void setParent(TreeNodeComponent parent)

public java.lang.String toString()

Overriding toString() method here is very important

Overrides:

toString in class Object

All Packages  Class Hierarchy  This Package  Previous  Next  Index