/*
* Copyright 2014-2016 CyberVision, Inc.
*
* 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.kaaproject.kaa.client.transact;
import java.util.UUID;
/**
* Class representing unique transaction id for transactions initiated using
* {@link Transactable}.<br>
*/
public final class TransactionId {
private final String id;
/**
* Default constructor. Generates random unique transaction id.
*/
public TransactionId() {
this.id = UUID.randomUUID().toString();
}
/**
* Copy constructor. Copies id from other TransactionId object.
*
* @param trxId the trx id
*/
public TransactionId(TransactionId trxId) {
this.id = trxId.id;
}
/**
* Constructs object with predefined id.
*
* @param id the id
*/
public TransactionId(String id) {
this.id = id;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
TransactionId other = (TransactionId) obj;
if (id == null) {
if (other.id != null) {
return false;
}
} else if (!id.equals(other.id)) {
return false;
}
return true;
}
@Override
public String toString() {
return id;
}
}