com.sri.emo.controller
Class ViewNodeAsTree

java.lang.Object
  com.sri.emo.controller.ViewNodeAsTree

All Implemented Interfaces:

StateHandler

public class ViewNodeAsTree
extends Object
implements StateHandler

This is a state handler that renders the node into a javascript-based tree menu.

Author:

Michael Rimov

Field Summary

static String	PARAM_COLLAPSE_ALL Parameter for collapse all command.
static String	PARAM_EXPAND_ALL Parameter for expand all comand.
static String	TREE_VIEW_ATTRIBUTE The attribute in the request where the tree view data structure is stored.

Constructor Summary

ViewNodeAsTree(Node nodeToRender)
Constructor that takes the node to render as a parameter.

Method Summary

void	handleRequest(ExpressoRequest request, ExpressoResponse response) Called to handle the request.

Methods inherited from class java.lang.Object

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

Field Detail

TREE_VIEW_ATTRIBUTE

public static final String TREE_VIEW_ATTRIBUTE

The attribute in the request where the tree view data structure is stored. This is picked up by the TreeMenuTag for actual rendering.

See Also:

Constant Field Values

PARAM_EXPAND_ALL

public static final String PARAM_EXPAND_ALL

Parameter for expand all comand.

See Also:

Constant Field Values

PARAM_COLLAPSE_ALL

public static final String PARAM_COLLAPSE_ALL

Parameter for collapse all command.

See Also:

Constant Field Values

Constructor Detail

ViewNodeAsTree

public ViewNodeAsTree(Node nodeToRender)

Constructor that takes the node to render as a parameter.

Parameters:

nodeToRender - Node the node to render, must not be null.

Method Detail

handleRequest

public void handleRequest(ExpressoRequest request,
                          ExpressoResponse response)
                   throws DBException,
                          ControllerException

Called to handle the request.

Specified by:

handleRequest in interface StateHandler

Parameters:

request - ExpressoRequest The Function's ExpressoRequest object.

response - ExpressoResponse The Function's ExpressoResponse object.

Throws:

DBException - upon underlying database exception error.

ControllerException - upon underlying ControllerException error.