org.springframework.core.InfrastructureProxy Maven / Gradle / Ivy
/*
* Copyright 2002-2012 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
*
* https://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.springframework.core;
/**
* Interface to be implemented by transparent resource proxies that need to be
* considered as equal to the underlying resource, for example for consistent
* lookup key comparisons. Note that this interface does imply such special
* semantics and does not constitute a general-purpose mixin!
*
* Such wrappers will automatically be unwrapped for key comparisons in
* {@link org.springframework.transaction.support.TransactionSynchronizationManager}.
*
*
Only fully transparent proxies, e.g. for redirection or service lookups,
* are supposed to implement this interface. Proxies that decorate the target
* object with new behavior, such as AOP proxies, do not qualify here!
*
* @author Juergen Hoeller
* @since 2.5.4
* @see org.springframework.transaction.support.TransactionSynchronizationManager
*/
public interface InfrastructureProxy {
/**
* Return the underlying resource (never {@code null}).
*/
Object getWrappedObject();
}