Source Code Cross Referenced for BeanUtils.java in  » Web-Framework » Strecks » org » strecks » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » Strecks » org.strecks.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:         * Copyright 2002-2005 the original author or authors.
03:         * 
04:         * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
05:         * in compliance with the License. You may obtain a copy of the License at
06:         * 
07:         * http://www.apache.org/licenses/LICENSE-2.0
08:         * 
09:         * Unless required by applicable law or agreed to in writing, software distributed under the License
10:         * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11:         * or implied. See the License for the specific language governing permissions and limitations under
12:         * the License.
13:         */
14:
15:        package org.strecks.util;
16:
17:        import java.beans.PropertyDescriptor;
18:        import java.lang.reflect.Method;
19:
20:        import org.strecks.exceptions.ApplicationRuntimeException;
21:
22:        /**
23:         * Class taken originally from Spring Framework. Contains static convenience methods for JavaBeans:
24:         * for instantiating beans, checking bean property types, copying bean properties, etc.
25:         * 
26:         * <p>
27:         * Mainly for use within the framework, but to some degree also useful for application classes.
28:         * 
29:         * <p>
30:         * Phil Zoio: lifted from Spring source and package renamed to remove Spring as a runtime mandatory
31:         * distribution file. Removed unneeded methods. Reformatted.
32:         * </p>
33:         * 
34:         * @author Rod Johnson
35:         * @author Juergen Hoeller
36:         * @author Rob Harrop
37:         * @author Phil Zoio
38:         */
39:        public abstract class BeanUtils {
40:
41:            /**
42:             * Retrieve the JavaBeans <code>PropertyDescriptor</code>s of a given class.
43:             * @param clazz
44:             *            the Class to retrieve the PropertyDescriptors for
45:             * @return an array of <code>PropertyDescriptors</code> for the given class
46:             */
47:            public static PropertyDescriptor[] getPropertyDescriptors(
48:                    Class clazz) throws ApplicationRuntimeException {
49:                CachedIntrospectionResults cr = CachedIntrospectionResults
50:                        .forClass(clazz);
51:                return cr.getBeanInfo().getPropertyDescriptors();
52:            }
53:
54:            /**
55:             * Find a JavaBeans <code>PropertyDescriptor</code> for the given method, with the method
56:             * either being the read method or the write method for that bean property.
57:             * @param method
58:             *            the method to find a corresponding PropertyDescriptor for
59:             * @return the corresponding PropertyDescriptor, or null if none
60:             */
61:            public static PropertyDescriptor findPropertyForMethod(Method method)
62:                    throws ApplicationRuntimeException {
63:                Assert.notNull(method, "method must not be null");
64:                PropertyDescriptor[] pds = getPropertyDescriptors(method
65:                        .getDeclaringClass());
66:                for (int i = 0; i < pds.length; i++) {
67:                    if (method.equals(pds[i].getReadMethod())
68:                            || method.equals(pds[i].getWriteMethod())) {
69:                        return pds[i];
70:                    }
71:                }
72:                return null;
73:            }
74:
75:        }
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