All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.apache.activemq.artemis.shaded.org.apache.commons.beanutils.DynaBeanMapDecorator Maven / Gradle / Ivy

There is a newer version: 2.33.0
Show newest version
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.activemq.artemis.shaded.org.apache.commons.beanutils;


/**
 * 

Decorates a {@link DynaBean} to provide Map behaviour.

* *

The motivation for this implementation is to provide access to {@link DynaBean} * properties in technologies that are unaware of BeanUtils and {@link DynaBean}s - * such as the expression languages of JSTL and JSF.

* *

This can be achieved either by wrapping the {@link DynaBean} prior to * providing it to the technolody to process or by providing a Map * accessor method on the DynaBean implementation: *


 *         public Map getMap() {
 *             return new DynaBeanMapDecorator(this);
 *         }
* *

* *

This, for example, could be used in JSTL in the following way to access * a DynaBean's fooProperty: *

  • ${myDynaBean.map.fooProperty}
*

* *

Usage

* *

To decorate a {@link DynaBean} simply instantiate this class with the * target {@link DynaBean}:

* *
  • Map fooMap = new DynaBeanMapDecorator(fooDynaBean);
* *

The above example creates a read only Map. * To create a Map which can be modified, construct a * DynaBeanMapDecorator with the read only * attribute set to false:

* *
  • Map fooMap = new DynaBeanMapDecorator(fooDynaBean, false);
* *

Limitations

*

In this implementation the entrySet(), keySet() * and values() methods create an unmodifiable * Set and it does not support the Map's clear() * and remove() operations.

*

For reasons of backwards compatibility, the generic types of this * {@code Map} implementation are {@code }. However, the * keys of the map are typically strings.

* * @since BeanUtils 1.8.0 * @version $Id$ * @deprecated Use {@link DynaBeanPropertyMapDecorator} instead. When adding * generics it turned out that it was not possible to use the correct type * parameters without breaking backwards compatibility. Therefore, class * {@code DynaBeanPropertyMapDecorator} was introduced as a replacement. */ @Deprecated public class DynaBeanMapDecorator extends BaseDynaBeanMapDecorator { /** * Construct a Map for the specified {@link DynaBean}. * * @param dynaBean The dyna bean being decorated * @param readOnly true if the Map is read only * otherwise false * @throws IllegalArgumentException if the {@link DynaBean} is null. */ public DynaBeanMapDecorator(final DynaBean dynaBean, final boolean readOnly) { super(dynaBean, readOnly); } /** * Constructs a read only Map for the specified * {@link DynaBean}. * * @param dynaBean The dyna bean being decorated * @throws IllegalArgumentException if the {@link DynaBean} is null. */ public DynaBeanMapDecorator(final DynaBean dynaBean) { super(dynaBean); } @Override protected Object convertKey(final String propertyName) { return propertyName; } }