Coverage Report - org.apache.commons.betwixt.expression.DynaBeanExpression

Classes in this File	Line Coverage	Branch Coverage	Complexity
DynaBeanExpression	57%	100%	1.6666666666666667;1.667

1		/*
2		* Copyright 2001-2004 The Apache Software Foundation.
3		*
4		* Licensed under the Apache License, Version 2.0 (the "License");
5		* you may not use this file except in compliance with the License.
6		* You may obtain a copy of the License at
7		*
8		* http://www.apache.org/licenses/LICENSE-2.0
9		*
10		* Unless required by applicable law or agreed to in writing, software
11		* distributed under the License is distributed on an "AS IS" BASIS,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*/
16
17		package org.apache.commons.betwixt.expression;
18
19		import org.apache.commons.beanutils.DynaBean;
20
21		/**
22		* An Expression that gets a property value from a DynaBean.
23		*
24		* @see org.apache.commons.beanutils.DynaBean
25		*
26		* @author Michael Becke
27		* @since 0.5
28		*/
29		public class DynaBeanExpression implements Expression {
30
31		/** The name of the DynaBean property to get */
32		private String propertyName;
33
34		/**
35		* Crates a new DynaBeanExpression.
36		*/
37		public DynaBeanExpression() {
38	0	super();
39	0	}
40
41		/**
42		* Crates a new DynaBeanExpression.
43		*
44		* @param propertyName the name of the DynaBean property to use
45		*/
46		public DynaBeanExpression(String propertyName) {
47	104	super();
48	104	setPropertyName(propertyName);
49	104	}
50
51		/**
52		* Returns the value of a DynaBean property from the bean stored in
53		* the Context. Returns <code>null</code> if no DynaBean is stored
54		* in the Context or if the propertyName has not been set.
55		*
56		* @param context the content containing the DynaBean
57		*
58		* @return the DynaBean property value or <code>null</code>
59		*/
60		public Object evaluate(Context context) {
61
62	39	if (context.getBean() instanceof DynaBean && propertyName != null) {
63	39	return ((DynaBean)context.getBean()).get(propertyName);
64		} else {
65	0	return null;
66		}
67		}
68
69		/**
70		* Do nothing.
71		* @see Expression#update
72		*/
73		public void update(Context context, String newValue) {
74		// do nothing
75	0	}
76
77		/**
78		* Gets the name of the property to get from the DynaBean.
79		* @return the name of the property that this expression reads
80		*/
81		public String getPropertyName() {
82	0	return propertyName;
83		}
84
85		/**
86		* Sets the name of the property to get from the DynaBean.
87		* @param propertyName the property that this expression reads, not null
88		*/
89		public void setPropertyName(String propertyName) {
90	104	if (propertyName == null) {
91	0	throw new IllegalArgumentException("propertyName is null");
92		}
93	104	this.propertyName = propertyName;
94	104	}
95
96		}