// Copyright 2017 JanusGraph Authors
//
// 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.janusgraph.graphdb.log;
import com.google.common.base.Preconditions;
import org.janusgraph.core.log.TransactionId;
import org.apache.commons.lang.builder.HashCodeBuilder;
import java.time.Instant;
/**
* @author Matthias Broecheler (me@matthiasb.com)
*/
public class StandardTransactionId implements TransactionId {
private String instanceId;
private long transactionId;
private Instant transactionTime;
public StandardTransactionId(String instanceId, long transactionId, Instant transactionTime) {
Preconditions.checkArgument(instanceId!=null && transactionId>=0 && transactionTime!=null);
this.instanceId = instanceId;
this.transactionId = transactionId;
this.transactionTime = transactionTime;
}
@Override
public String getInstanceId() {
return instanceId;
}
@Override
public long getTransactionId() {
return transactionId;
}
@Override
public Instant getTransactionTime() {
return transactionTime;
}
@Override
public int hashCode() {
return new HashCodeBuilder().append(instanceId).append(transactionId).append(transactionTime).toHashCode();
}
@Override
public boolean equals(Object oth) {
if (this==oth) return true;
else if (oth==null || !getClass().isInstance(oth)) return false;
StandardTransactionId id = (StandardTransactionId)oth;
return instanceId.equals(id.instanceId) && transactionId==id.transactionId
&& transactionTime.equals(id.transactionTime);
}
@Override
public String toString() {
return transactionId+"@"+instanceId+"::"+transactionTime;
}
}