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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.tinkerpop.gremlin.util.function;

import java.util.Objects;

/**
 * Represents an operation that accepts two input arguments and returns no result. This is the tri-arity
 * specialization of {@link java.util.function.Consumer}. Unlike most other functional interfaces, {@link TriConsumer}
 * is expected to operate via side-effects.
 * 

* This is a functional interface whose functional method is {@link #accept(Object, Object, Object)}. * * @param the type of the first argument to the operation * @param the type of the second argument to the operation * @param the type of the third argument to the operation * @author Stephen Mallette (http://stephen.genoprime.com) */ public interface TriConsumer { /** * Performs this operation on the given arguments. * * @param a the first argument to the operation * @param b the second argument to the operation * @param c the third argument to the operation */ public void accept(final A a, final B b, final C c); /** * Returns a composed @{link TriConsumer} that performs, in sequence, this operation followed by the {@code after} * operation. If performing either operation throws an exception, it is relayed to the caller of the composed * operation. If performing this operation throws an exception, the after operation will not be performed. * * @param after the operation to perform after this operation * @return a composed {@link TriConsumer} that performs in sequence this operation followed by the {@code after} * operation * @throws NullPointerException if {@code after} is null */ public default TriConsumer andThen(final TriConsumer after) { Objects.requireNonNull(after); return (A a, B b, C c) -> { accept(a, b, c); after.accept(a, b, c); }; } }





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