org.apache.hudi.common.util.collection.Tuple3 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.hudi.common.util.collection;
import java.io.Serializable;
/**
* A tuple with 3 fields. Tuples are strongly typed; each field may be of a separate type. The
* fields of the tuple can be accessed directly as public fields (f0, f1, ...). The tuple field
* positions start at zero.
*
* @param The type of field 0
* @param The type of field 1
* @param The type of field 2
*/
public class Tuple3 implements Serializable {
private static final long serialVersionUID = 1L;
/**
* Field 0 of the tuple.
*/
public final T0 f0;
/**
* Field 1 of the tuple.
*/
public final T1 f1;
/**
* Field 2 of the tuple.
*/
public final T2 f2;
/**
* Creates a new tuple and assigns the given values to the tuple's fields.
*
* @param f0 The value for field 0
* @param f1 The value for field 1
* @param f2 The value for field 2
*/
private Tuple3(T0 f0, T1 f1, T2 f2) {
this.f0 = f0;
this.f1 = f1;
this.f2 = f2;
}
/**
* Creates a new tuple and assigns the given values to the tuple's fields. This is more
* convenient than using the constructor, because the compiler can infer the generic type
* arguments implicitly. For example: {@code Tuple3.of(n, x, s)} instead of {@code new
* Tuple3(n, x, s)}
*/
public static Tuple3 of(T0 f0, T1 f1, T2 f2) {
return new Tuple3<>(f0, f1, f2);
}
}