spring CacheOperationInvoker 源码
spring CacheOperationInvoker 代码
文件路径：/spring-context/src/main/java/org/springframework/cache/interceptor/CacheOperationInvoker.java
/*
* Copyright 2002-2020 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.cache.interceptor;
import org.springframework.lang.Nullable;
/**
* Abstract the invocation of a cache operation.
*
* <p>Does not provide a way to transmit checked exceptions but
* provide a special exception that should be used to wrap any
* exception that was thrown by the underlying invocation.
* Callers are expected to handle this issue type specifically.
*
* @author Stephane Nicoll
* @since 4.1
*/
@FunctionalInterface
public interface CacheOperationInvoker {
/**
* Invoke the cache operation defined by this instance. Wraps any exception
* that is thrown during the invocation in a {@link ThrowableWrapper}.
* @return the result of the operation
* @throws ThrowableWrapper if an error occurred while invoking the operation
*/
@Nullable
Object invoke() throws ThrowableWrapper;
/**
* Wrap any exception thrown while invoking {@link #invoke()}.
*/
@SuppressWarnings("serial")
class ThrowableWrapper extends RuntimeException {
private final Throwable original;
public ThrowableWrapper(Throwable original) {
super(original.getMessage(), original);
this.original = original;
}
public Throwable getOriginal() {
return this.original;
}
}
}
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