org.apache.geode.internal.cache.versions.VMVersionTag Maven / Gradle / Ivy

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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

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/*
 * 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.internal.cache.versions;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.geode.distributed.internal.DM;
import org.apache.geode.distributed.internal.membership.InternalDistributedMember;
import org.apache.geode.internal.Version;

/**
 * The version tag class for version tags for non-persistent regions. The VersionSource held in
 * these tags is an InternalDistributedMember.
 * 
 * 
 */
public class VMVersionTag extends VersionTag {

  public VMVersionTag() {
    super();
  }

  @Override
  public void writeMember(InternalDistributedMember member, DataOutput out) throws IOException {
    member.writeEssentialData(out);

  }

  @Override
  public void setCanonicalIDs(DM dm) {
    InternalDistributedMember id = getMemberID();
    if (id != null) {
      setMemberID(dm.getCanonicalId(getMemberID()));
      id = getPreviousMemberID();
      if (id != null) {
        setPreviousMemberID(dm.getCanonicalId(id));
      }
    }
  }

  @Override
  public InternalDistributedMember readMember(DataInput in)
      throws IOException, ClassNotFoundException {
    return InternalDistributedMember.readEssentialData(in);
  }

  @Override
  public int getDSFID() {
    return VERSION_TAG;
  }

  @Override
  public Version[] getSerializationVersions() {
    return null;
  }


}