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    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
    18  package org.apache.commons.beanutils;
    19
    20  import java.lang.reflect.InvocationTargetException;
    21
    22  /***
    23   * <p>Implementation of <code>DynaBean</code> that wraps a standard JavaBean
    24   * instance, so that DynaBean APIs can be used to access its properties,
    25   * though this implementation allows type conversion to occur when properties are set.
    26   * This means that (say) Strings can be passed in as values in setter methods and
    27   * this DynaBean will convert them to the correct primitive data types.</p>
    28   *
    29   * <p><strong>IMPLEMENTATION NOTE</strong> - This implementation does not
    30   * support the <code>contains()</code> and <code>remove()</code> methods.</p>
    31   *
    32   * @author James Strachan
    33   * @version $Revision: 555824 $ $Date: 2007-07-13 01:27:15 +0100 (Fri, 13 Jul 2007) $
    34   */
    35
    36  public class ConvertingWrapDynaBean extends WrapDynaBean {
    37
    38
    39
    40      /***
    41       * Construct a new <code>DynaBean</code> associated with the specified
    42       * JavaBean instance.
    43       *
    44       * @param instance JavaBean instance to be wrapped
    45       */
    46      public ConvertingWrapDynaBean(Object instance) {
    47
    48          super(instance);
    49
    50      }
    51
    52
    53      /***
    54       * Set the value of the property with the specified name
    55       * performing any type conversions if necessary. So this method
    56       * can accept String values for primitive numeric data types for example.
    57       *
    58       * @param name Name of the property whose value is to be set
    59       * @param value Value to which this property is to be set
    60       *
    61       * @exception IllegalArgumentException if there are any problems
    62       *            copying the property.
    63       */
    64      public void set(String name, Object value) {
    65
    66          try {
    67              BeanUtils.copyProperty(instance, name, value);
    68          } catch (InvocationTargetException ite) {
    69              Throwable cause = ite.getTargetException();
    70              throw new IllegalArgumentException
    71                      ("Error setting property '" + name +
    72                                "' nested exception - " + cause);
    73          } catch (Throwable t) {
    74              throw new IllegalArgumentException
    75                      ("Error setting property '" + name +
    76                                "', exception - " + t);
    77          }
    78
    79      }
    80  }