#region License
/*
* Copyright 2002-2004 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
using System;
using System.Reflection;
using AopAlliance.Aop;
using Spring.Aop.Framework;
using Spring.Aop.Support;
namespace Spring.Transaction.Interceptor{
/// <summary>
/// Advisor driven by a <see cref="Spring.Transaction.Interceptor.ITransactionAttributeSource"/>,
/// used to exclude a general advice <see cref="IAdvice"/> from methods that
/// are non-transactional.
/// </summary>
/// <remarks>
/// <para>
/// To put it another way, use this advisor when you would like to associate other AOP
/// advice based on the pointcut specified by declarative transaction demarcation,
/// attibute based or otherwise.
/// </para>
/// <p>
/// Because the AOP framework caches advice calculations, this is normally
/// faster than just letting the <see cref="AopAlliance.Intercept.IInterceptor"/>
/// run and find out itself that it has no work to do.
/// </p>
/// </remarks>
/// <author>Mark Pollack (.NET)</author>
[Serializable]
public class DefaultTransactionAttributeSourceAdvisor : StaticMethodMatcherPointcutAdvisor
{
private ITransactionAttributeSource _transactionAttributeSource;
/// <summary>
/// Creates a new instance of the
/// <see cref="Spring.Transaction.Interceptor.DefaultTransactionAttributeSourceAdvisor"/> class.
/// </summary>
public DefaultTransactionAttributeSourceAdvisor(ITransactionAttributeSource transactionAttributeSource, IAdvice advice)
: base( advice )
{
if (transactionAttributeSource == null)
{
throw new AopConfigException("Cannot construct a DefaultTransactionAttributeSourceAdvisor if " +
"TransactionAttributeSource is null.");
}
_transactionAttributeSource = transactionAttributeSource;
}
/// <summary>
/// Tests the input method to see if it's covered by the advisor.
/// </summary>
/// <param name="method">The method to match.</param>
/// <param name="targetClass">The <see cref="System.Type"/> to match against.</param>
/// <returns>
/// <b>True</b> if the supplied <paramref name="method"/> is covered by the advisor.
/// </returns>
public override bool Matches(MethodInfo method, Type targetClass)
{
return ( _transactionAttributeSource.ReturnTransactionAttribute( (MethodInfo)method, targetClass ) != null);
}
}
}
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