#region License
/*
* Copyright 2002-2005 the original author or authors.
*
* Licensed 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.
*/
#endregion
#region Imports
using System;
using Spring.Util;
#endregion
namespace Spring.Aop.Framework{
/// <summary>
/// Decorates a target source with the <see cref="System.IDisposable"/>
/// interface.
/// </summary>
/// <remarks>
/// <p>
/// This implementation will release the target object when said object
/// is disposed.
/// </p>
/// </remarks>
/// <author>Aleksandar Seovic</author>
[Serializable]
public sealed class DynamicTargetSourceWrapper : ITargetSourceWrapper
{
private ITargetSource targetSource;
private object target;
/// <summary>
/// Creates a new instance of the
/// <see cref="Spring.Aop.Framework.DynamicTargetSourceWrapper"/>
/// class.
/// </summary>
/// <param name="targetSource">
/// The target object that proxy methods will be delegated to.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// If the supplied <paramref name="targetSource"/> is
/// <see langword="null"/>.
/// </exception>
internal DynamicTargetSourceWrapper(ITargetSource targetSource)
{
AssertUtils.ArgumentNotNull(targetSource, "targetSource");
this.targetSource = targetSource;
}
/// <summary>
/// Returns the target object that proxy methods will be delegated to.
/// </summary>
/// <returns>The target object.</returns>
public object GetTarget()
{
if (this.target == null)
{
this.target = targetSource.GetTarget();
}
return this.target;
}
/// <summary>
/// Releases the dynamic target when this object is disposed.
/// </summary>
public void Dispose()
{
GC.SuppressFinalize(this);
Dispose(true);
}
private void Dispose(bool disposing)
{
if (disposing && this.target != null)
{
this.targetSource.ReleaseTarget(this.target);
this.target = null;
}
}
}
}
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