/*
* Copyright (c) 2010 Lockheed Martin Corporation
*
* 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.
*/
package org.eurekastreams.server.persistence.mappers.cache;
import java.util.Collections;
import java.util.Set;
import org.eurekastreams.server.persistence.mappers.DomainMapper;
/**
* Adaptor for DeleteCacheKeys (and similar mappers) which allows the keyname-based mapper to be used where a mapper
* that just takes an ID would be used.
*/
public class PrefixingCacheKeyAdaptor implements DomainMapper<Object, Boolean>
{
/** Prefix to add to create key name. */
private final String prefix;
/** Mapper being adapted. */
private final DomainMapper<Set<String>, Boolean> wrappedMapper;
/**
* Constructor.
*
* @param inPrefix
* Prefix to add to create key name.
* @param inWrappedMapper
* Mapper being adapted.
*/
public PrefixingCacheKeyAdaptor(final String inPrefix, final DomainMapper<Set<String>, Boolean> inWrappedMapper)
{
prefix = inPrefix;
wrappedMapper = inWrappedMapper;
}
/**
* {@inheritDoc}
*/
@Override
public Boolean execute(final Object inRequest)
{
return wrappedMapper.execute(Collections.singleton(prefix + inRequest));
}
}