001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.bean;
016    
017    import org.apache.hivemind.ApplicationRuntimeException;
018    import org.apache.hivemind.impl.BaseLocatable;
019    import org.apache.hivemind.util.PropertyUtils;
020    import org.apache.tapestry.Tapestry;
021    
022    /**
023     * Base class for initializing a property of a JavaBean.
024     * 
025     * @author Howard Lewis Ship
026     * @since 1.0.5
027     */
028    
029    public abstract class AbstractBeanInitializer extends BaseLocatable implements IBeanInitializer
030    {
031        protected String _propertyName;
032    
033        public String getPropertyName()
034        {
035            return _propertyName;
036        }
037    
038        /** @since 3.0 * */
039    
040        public void setPropertyName(String propertyName)
041        {
042            _propertyName = propertyName;
043        }
044    
045        protected void setBeanProperty(Object bean, Object value)
046        {
047            try
048            {
049                PropertyUtils.write(bean, _propertyName, value);
050            }
051            catch (ApplicationRuntimeException ex)
052            {
053                String message = Tapestry.format(
054                        "AbstractBeanInitializer.unable-to-set-property",
055                        _propertyName,
056                        bean,
057                        value);
058    
059                throw new ApplicationRuntimeException(message, getLocation(), ex);
060            }
061    
062        }
063    }