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/*
Derby - Class org.apache.derbyTesting.unitTests.services.T_CachedInteger
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You 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.apache.derbyTesting.unitTests.services;
import org.apache.derby.iapi.services.cache.*;
import org.apache.derby.iapi.error.StandardException;
/**
*/
public class T_CachedInteger extends T_Cacheable {
protected T_Key keyValue;
public T_CachedInteger() {
}
/*
** Cacheable methods
*/
/**
@exception StandardException Standard Derby Error policy
*/
public Cacheable setIdentity(Object key) throws StandardException {
super.setIdentity(key);
T_Key tkey = (T_Key) key; // instanceof check provided by superclass
if (!(tkey.getValue() instanceof Integer)) {
return getCorrectObject(tkey.getValue()).setIdentity(key);
}
// potentially pretend to wait and potentally behave as not found.
if (!dummySet(tkey))
return null;
keyValue = tkey;
return this;
}
/**
@exception StandardException Standard Derby Error policy
*/
public Cacheable createIdentity(Object key, Object createParameter) throws StandardException {
super.createIdentity(key, createParameter);
T_Key tkey = (T_Key) key; // instanceof check provided by superclass
if (!(tkey.getValue() instanceof Integer)) {
return getCorrectObject(tkey.getValue()).createIdentity(key, createParameter);
}
// potentially pretend to wait and potentally behave as not found.
if (!dummySet(tkey))
return null;
keyValue = tkey;
return this;
}
/**
Put the object into the No Identity state.
<BR> MT - single thread required - Method must only be called be cache manager
and the cache manager will guarantee only one thread can be calling it.
*/
public void clearIdentity() {
keyValue = null;
}
/**
Get the identity of this object.
<BR> MT - thread safe.
*/
public Object getIdentity() {
return keyValue;
}
/**
@exception StandardException Standard Derby Error policy
*/
public void clean(boolean forRemove) throws StandardException {
super.clean(forRemove);
}
}
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