spring DefaultCacheKeyInvocationContext 源码
spring DefaultCacheKeyInvocationContext 代码
文件路径：/spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/DefaultCacheKeyInvocationContext.java
/*
* Copyright 2002-2018 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.jcache.interceptor;
import java.lang.annotation.Annotation;
import javax.cache.annotation.CacheInvocationParameter;
import javax.cache.annotation.CacheKeyInvocationContext;
import org.springframework.lang.Nullable;
/**
* The default {@link CacheKeyInvocationContext} implementation.
*
* @author Stephane Nicoll
* @since 4.1
* @param <A> the annotation type
*/
class DefaultCacheKeyInvocationContext<A extends Annotation> extends DefaultCacheInvocationContext<A>
implements CacheKeyInvocationContext<A> {
private final CacheInvocationParameter[] keyParameters;
@Nullable
private final CacheInvocationParameter valueParameter;
public DefaultCacheKeyInvocationContext(AbstractJCacheKeyOperation<A> operation, Object target, Object[] args) {
super(operation, target, args);
this.keyParameters = operation.getKeyParameters(args);
if (operation instanceof CachePutOperation) {
this.valueParameter = ((CachePutOperation) operation).getValueParameter(args);
}
else {
this.valueParameter = null;
}
}
@Override
public CacheInvocationParameter[] getKeyParameters() {
return this.keyParameters.clone();
}
@Override
@Nullable
public CacheInvocationParameter getValueParameter() {
return this.valueParameter;
}
}
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