org.apache.hadoop.hive.common.ObjectPair Maven / Gradle / Ivy
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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.hadoop.hive.common;
public class ObjectPair {
private F first;
private S second;
public ObjectPair() {}
/**
* Creates a pair. Constructor doesn't infer template args but
* the method does, so the code becomes less ugly.
*/
public static ObjectPair create(T1 f, T2 s) {
return new ObjectPair(f, s);
}
public ObjectPair(F first, S second) {
this.first = first;
this.second = second;
}
public F getFirst() {
return first;
}
public void setFirst(F first) {
this.first = first;
}
public S getSecond() {
return second;
}
public void setSecond(S second) {
this.second = second;
}
@Override
public boolean equals(Object that) {
if (that == null) {
return false;
}
if (that instanceof ObjectPair) {
return this.equals((ObjectPair)that);
}
return false;
}
public boolean equals(ObjectPair that) {
if (that == null) {
return false;
}
return this.getFirst().equals(that.getFirst()) &&
this.getSecond().equals(that.getSecond());
}
@Override
public int hashCode() {
return first.hashCode() * 31 + second.hashCode();
}
public String toString() {
return first + ":" + second;
}
}