/*
* 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.flink.api.java.typeutils.runtime;
import org.apache.flink.core.memory.DataInputView;
import org.apache.flink.core.memory.DataOutputView;
import org.apache.flink.types.Value;
import java.io.IOException;
import java.util.UUID;
public class ValueID implements Value, Comparable<ValueID> {
private static final long serialVersionUID = -562791433077971752L;
private UUID id;
public ValueID() {
id = UUID.randomUUID();
}
public ValueID(UUID id) {
this.id = id;
}
@Override
public int compareTo(ValueID o) {
return id.compareTo(o.id);
}
@Override
public void write(DataOutputView out) throws IOException {
out.writeLong(id.getMostSignificantBits());
out.writeLong(id.getLeastSignificantBits());
}
@Override
public void read(DataInputView in) throws IOException {
id = new UUID(in.readLong(), in.readLong());
}
@Override
public boolean equals(Object obj) {
if (obj instanceof ValueID) {
ValueID other = (ValueID) obj;
return id.equals(other.id);
} else {
return false;
}
}
@Override
public int hashCode() {
return id.hashCode();
}
}