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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing
/*
* 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.geode.distributed.internal;
import org.apache.geode.internal.*;
import java.lang.ref.WeakReference;
import java.util.concurrent.atomic.AtomicInteger;
/**
* A message processor class typically creates an instance of ProcessorKeeper and holds it in a
* static variable. In the constructor of the processor class, do this:
*
* processorId = keeper.put()
*
* When a message is processed, do this:
*
* processor = .keeper().get(processorId);
*
*
* Processor ids are always greater than 0.
*
*/
public class ProcessorKeeper21 {
/**
* Key is a unique id, value is an instance of some processor class
*/
private final ObjIdConcurrentMap