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javax.swing
public static class: JTree.DynamicUtilTreeNode [javadoc | source]
java.lang.Object
   javax.swing.tree.DefaultMutableTreeNode
      javax.swing.JTree$DynamicUtilTreeNode

All Implemented Interfaces:
    Cloneable, MutableTreeNode, Serializable

DynamicUtilTreeNode can wrap vectors/hashtables/arrays/strings and create the appropriate children tree nodes as necessary. It is dynamic in that it will only create the children as necessary.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see java.beans.XMLEncoder .
Field Summary
protected  boolean hasChildren    Does the this JTree have children? This property is currently not implemented. 
protected  Object childValue    Value to create children with. 
protected  boolean loadedChildren    Have the children been loaded yet? 
Fields inherited from javax.swing.tree.DefaultMutableTreeNode:
EMPTY_ENUMERATION,  parent,  children,  userObject,  allowsChildren
Constructor:
 public DynamicUtilTreeNode(Object value,
    Object children) 
    Creates a node with the specified object as its value and with the specified children. For the node to allow children, the children-object must be an array of objects, a Vector, or a Hashtable -- even if empty. Otherwise, the node is not allowed to have children.
    Parameters:
    value - the Object that is the value for the new node
    children - an array of Objects, a Vector, or a Hashtable used to create the child nodes; if any other object is specified, or if the value is null, then the node is not allowed to have children
Method from javax.swing.JTree$DynamicUtilTreeNode Summary:
children,   createChildren,   getChildAt,   getChildCount,   isLeaf,   loadChildren
Methods from javax.swing.tree.DefaultMutableTreeNode:
add,   breadthFirstEnumeration,   children,   clone,   depthFirstEnumeration,   getAllowsChildren,   getChildAfter,   getChildAt,   getChildBefore,   getChildCount,   getDepth,   getFirstChild,   getFirstLeaf,   getIndex,   getLastChild,   getLastLeaf,   getLeafCount,   getLevel,   getNextLeaf,   getNextNode,   getNextSibling,   getParent,   getPath,   getPathToRoot,   getPreviousLeaf,   getPreviousNode,   getPreviousSibling,   getRoot,   getSharedAncestor,   getSiblingCount,   getUserObject,   getUserObjectPath,   insert,   isLeaf,   isNodeAncestor,   isNodeChild,   isNodeDescendant,   isNodeRelated,   isNodeSibling,   isRoot,   pathFromAncestorEnumeration,   postorderEnumeration,   preorderEnumeration,   remove,   remove,   removeAllChildren,   removeFromParent,   setAllowsChildren,   setParent,   setUserObject,   toString
Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait
Method from javax.swing.JTree$DynamicUtilTreeNode Detail:
 public Enumeration children() 
    Subclassed to load the children, if necessary.
 public static  void createChildren(DefaultMutableTreeNode parent,
    Object children) 
    Adds to parent all the children in children. If children is an array or vector all of its elements are added is children, otherwise if children is a hashtable all the key/value pairs are added in the order Enumeration returns them.
 public TreeNode getChildAt(int index) 
    Subclassed to load the children, if necessary.
 public int getChildCount() 
    Returns the number of child nodes.
 public boolean isLeaf() 
    Returns true if this node allows children. Whether the node allows children depends on how it was created.
 protected  void loadChildren() 
    Loads the children based on childValue. If childValue is a Vector or array each element is added as a child, if childValue is a Hashtable each key/value pair is added in the order that Enumeration returns the keys.