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:	93		Methods:	2
	NCLOC:	46		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

EstablishDefaultParameterValuesVisitor.java

80%

88.2%

100%

86.2%

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.pageload;
16
17		import java.util.Iterator;
18
19		import org.apache.hivemind.ApplicationRuntimeException;
20		import org.apache.tapestry.IBinding;
21		import org.apache.tapestry.IComponent;
22		import org.apache.tapestry.binding.BindingConstants;
23		import org.apache.tapestry.binding.BindingSource;
24		import org.apache.tapestry.spec.IComponentSpecification;
25		import org.apache.tapestry.spec.IParameterSpecification;
26
27		/**
28		* For all parameters in the examined component that have default values, but are not bound,
29		* automatically add an ExpressionBinding with the default value.
30		*
31		* @author mindbridge
32		* @since 3.0
33		*/
34		public class EstablishDefaultParameterValuesVisitor implements IComponentVisitor
35		{
36		/** @since 4.0 */
37		private BindingSource _bindingSource;
38
39		/**
40		* @see org.apache.tapestry.pageload.IComponentVisitor#visitComponent(org.apache.tapestry.IComponent)
41		*/
42	2931	public void visitComponent(IComponent component)
43		{
44	2931	IComponentSpecification spec = component.getSpecification();
45
46	2931	Iterator i = spec.getParameterNames().iterator();
47
48	2931	while (i.hasNext())
49		{
50	9948	String name = (String) i.next();
51	9948	IParameterSpecification parameterSpec = spec.getParameter(name);
52
53		// Skip aliases
54
55	9948	if (!name.equals(parameterSpec.getParameterName()))
56	0	continue;
57
58	9948	String defaultValue = parameterSpec.getDefaultValue();
59	9948	if (defaultValue == null)
60	8232	continue;
61
62		// the parameter has a default value, so it must not be required
63	1716	if (parameterSpec.isRequired())
64	0	throw new ApplicationRuntimeException(PageloadMessages
65		.parameterMustHaveNoDefaultValue(component, name), component, parameterSpec
66		.getLocation(), null);
67
68		// if there is no binding for this parameter, bind it to the default value.
69		// In 3.0, default-value was always an OGNL expression, but now its a binding reference.
70
71	1716	if (component.getBinding(name) == null)
72		{
73	1653	String description = PageloadMessages.defaultParameterName(name);
74
75	1653	IBinding binding = _bindingSource.createBinding(
76		component,
77		description,
78		defaultValue,
79		BindingConstants.OGNL_PREFIX,
80		parameterSpec.getLocation());
81
82	1653	component.setBinding(name, binding);
83		}
84		}
85		}
86
87		/** @since 4.0 */
88
89	117	public void setBindingSource(BindingSource bindingSource)
90		{
91	117	_bindingSource = bindingSource;
92		}
93		}