/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.engine;
import org.apache.lucene.util.Accountable;
import org.apache.lucene.util.RamUsageEstimator;
import java.util.Collection;
import java.util.Collections;
class VersionValue implements Accountable {
private static final long BASE_RAM_BYTES_USED = RamUsageEstimator.shallowSizeOfInstance(VersionValue.class);
/** the version of the document. used for versioned indexed operations and as a BWC layer, where no seq# are set yet */
final long version;
/** the seq number of the operation that last changed the associated uuid */
final long seqNo;
/** the the term of the operation that last changed the associated uuid */
final long term;
VersionValue(long version, long seqNo, long term) {
this.version = version;
this.seqNo = seqNo;
this.term = term;
}
public boolean isDelete() {
return false;
}
@Override
public long ramBytesUsed() {
return BASE_RAM_BYTES_USED;
}
@Override
public Collection<Accountable> getChildResources() {
return Collections.emptyList();
}
@Override
public String toString() {
return "VersionValue{" +
"version=" + version +
", seqNo=" + seqNo +
", term=" + term +
'}';
}
}