Coverage Report - org.apache.commons.configuration.beanutils.DefaultBeanFactory
 
Classes in this File Line Coverage Branch Coverage Complexity
DefaultBeanFactory
100%
9/9
N/A
1
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *     http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.commons.configuration.beanutils;
 18  
 
 19  
 /**
 20  
  * <p>
 21  
  * The default implementation of the <code>BeanFactory</code> interface.
 22  
  * </p>
 23  
  * <p>
 24  
  * This class creates beans of arbitrary types using reflection. Each time the
 25  
  * <code>createBean()</code> method is invoked, a new bean instance is
 26  
  * created. A default bean class is not supported.
 27  
  * </p>
 28  
  * <p>
 29  
  * An instance of this factory class will be set as the default bean factory for
 30  
  * the <code>{@link BeanHelper}</code> class. This means that if not bean
 31  
  * factory is specified in a <code>{@link BeanDeclaration}</code>, this
 32  
  * default instance will be used.
 33  
  * </p>
 34  
  *
 35  
  * @since 1.3
 36  
  * @author Oliver Heger
 37  
  * @version $Id: DefaultBeanFactory.java 439648 2006-09-02 20:42:10Z oheger $
 38  
  */
 39  22
 public class DefaultBeanFactory implements BeanFactory
 40  
 {
 41  
     /** Stores the default instance of this class. */
 42  4
     public static final DefaultBeanFactory INSTANCE = new DefaultBeanFactory();
 43  
 
 44  
     /**
 45  
      * Creates a new bean instance. This implementation delegates to the
 46  
      * protected methods <code>createBeanInstance()</code> and
 47  
      * <code>initBeanInstance()</code> for creating and initializing the bean.
 48  
      * This makes it easier for derived classes that need to change specific
 49  
      * functionality of the base class.
 50  
      *
 51  
      * @param beanClass the class of the bean, from which an instance is to be
 52  
      * created
 53  
      * @param data the bean declaration object
 54  
      * @param parameter an additional parameter (ignored by this implementation)
 55  
      * @return the new bean instance
 56  
      * @throws Exception if an error occurs
 57  
      */
 58  
     public Object createBean(Class beanClass, BeanDeclaration data,
 59  
             Object parameter) throws Exception
 60  
     {
 61  92
         Object result = createBeanInstance(beanClass, data);
 62  92
         initBeanInstance(result, data);
 63  92
         return result;
 64  
     }
 65  
 
 66  
     /**
 67  
      * Returns the default bean class used by this factory. This is always
 68  
      * <b>null</b> for this implementation.
 69  
      *
 70  
      * @return the default bean class
 71  
      */
 72  
     public Class getDefaultBeanClass()
 73  
     {
 74  1
         return null;
 75  
     }
 76  
 
 77  
     /**
 78  
      * Creates the bean instance. This method is called by
 79  
      * <code>createBean()</code>. It uses reflection to create a new instance
 80  
      * of the specified class.
 81  
      *
 82  
      * @param beanClass the class of the bean to be created
 83  
      * @param data the bean declaration
 84  
      * @return the new bean instance
 85  
      * @throws Exception if an error occurs
 86  
      */
 87  
     protected Object createBeanInstance(Class beanClass, BeanDeclaration data)
 88  
             throws Exception
 89  
     {
 90  92
         return beanClass.newInstance();
 91  
     }
 92  
 
 93  
     /**
 94  
      * Initializes the newly created bean instance. This method is called by
 95  
      * <code>createBean()</code>. It calls the
 96  
      * <code>{@link BeanHelper#initBean(Object, BeanDeclaration) initBean()}</code>
 97  
      * of <code>{@link BeanHelper}</code> for performing the initialization.
 98  
      *
 99  
      * @param bean the newly created bean instance
 100  
      * @param data the bean declaration object
 101  
      * @throws Exception if an error occurs
 102  
      */
 103  
     protected void initBeanInstance(Object bean, BeanDeclaration data)
 104  
             throws Exception
 105  
     {
 106  92
         BeanHelper.initBean(bean, data);
 107  92
     }
 108  
 }