Code Coverage for tapestry release 4.0.3

Clover coverage report - Code Coverage for tapestry release 4.0.3

Coverage timestamp: Fri May 5 2006 21:17:42 CDT

FRAMES NO FRAMES

file stats:	LOC:	104		Methods:	5
	NCLOC:	63		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

ListenerMethodBinding.java

100%

100%

1		// Copyright 2004, 2005 The Apache Software Foundation
2		//
3		// Licensed under the Apache License, Version 2.0 (the "License");
4		// you may not use this file except in compliance with the License.
5		// You may obtain a copy of the License at
6		//
7		// http://www.apache.org/licenses/LICENSE-2.0
8		//
9		// Unless required by applicable law or agreed to in writing, software
10		// distributed under the License is distributed on an "AS IS" BASIS,
11		// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12		// See the License for the specific language governing permissions and
13		// limitations under the License.
14
15		package org.apache.tapestry.binding;
16
17		import org.apache.hivemind.Location;
18		import org.apache.hivemind.util.Defense;
19		import org.apache.tapestry.BindingException;
20		import org.apache.tapestry.IActionListener;
21		import org.apache.tapestry.IComponent;
22		import org.apache.tapestry.IRequestCycle;
23		import org.apache.tapestry.PageRedirectException;
24		import org.apache.tapestry.RedirectException;
25		import org.apache.tapestry.coerce.ValueConverter;
26
27		/**
28		* @author Howard M. Lewis Ship
29		* @since 4.0
30		*/
31		public class ListenerMethodBinding extends AbstractBinding implements IActionListener
32		{
33		private final IComponent _component;
34
35		private final String _methodName;
36
37		// We have to defer obtaining the listener until after the page is loaded, because it is
38		// (currently) reliant on the page's engine property to gain access to the
39		// ListenerMapSource. I'd prefer it if this was a final field, resolved by the constructor,
40		// but that will involve injecting the ListenerMapSource into AbstractComponent.
41
42		private IActionListener _listener;
43
44	108	public ListenerMethodBinding(String description, ValueConverter valueConverter, Location location,
45		IComponent component, String methodName)
46		{
47	108	super(description, valueConverter, location);
48
49	108	Defense.notNull(component, "component");
50	108	Defense.notNull(methodName, "methodName");
51
52	108	_component = component;
53	108	_methodName = methodName;
54		}
55
56	3	public Object getComponent()
57		{
58	3	return _component;
59		}
60
61		/**
62		* Returns this binding object; the binding object delegates to the actual listener. This allows
63		* us to intercept errors and report the location of the binding.
64		*/
65	72	public Object getObject()
66		{
67	72	return this;
68		}
69
70	120	public void actionTriggered(IComponent component, IRequestCycle cycle)
71		{
72	120	try
73		{
74	120	if (_listener == null)
75	81	_listener = _component.getListeners().getListener(_methodName);
76
77	120	_listener.actionTriggered(component, cycle);
78		}
79		catch (PageRedirectException ex)
80		{
81	9	throw ex;
82		}
83		catch (RedirectException ex)
84		{
85	3	throw ex;
86		}
87		catch (RuntimeException ex)
88		{
89	3	throw new BindingException(BindingMessages.listenerMethodFailure(
90		_component,
91		_methodName,
92		ex), _component, getLocation(), this, ex);
93		}
94		}
95
96	3	protected void extendDescription(StringBuffer buffer)
97		{
98	3	buffer.append(", component=");
99	3	buffer.append(_component.getExtendedId());
100	3	buffer.append(", methodName=");
101	3	buffer.append(_methodName);
102		}
103
104		}