/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package java.util.function;

import java.util.Objects;

Represents an operation that accepts a single long-valued argument and returns no result. This is the primitive type specialization of Consumer for long. Unlike most other functional interfaces, LongConsumer is expected to operate via side-effects.

This is a functional interface whose functional method is accept(long).

See Also:
Since:1.8
/** * Represents an operation that accepts a single {@code long}-valued argument and * returns no result. This is the primitive type specialization of * {@link Consumer} for {@code long}. Unlike most other functional interfaces, * {@code LongConsumer} is expected to operate via side-effects. * * <p>This is a <a href="package-summary.html">functional interface</a> * whose functional method is {@link #accept(long)}. * * @see Consumer * @since 1.8 */
@FunctionalInterface public interface LongConsumer {
Performs this operation on the given argument.
Params:
  • value – the input argument
/** * Performs this operation on the given argument. * * @param value the input argument */
void accept(long value);
Returns a composed LongConsumer that performs, in sequence, this operation followed by the 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.
Params:
  • after – the operation to perform after this operation
Throws:
Returns:a composed LongConsumer that performs in sequence this operation followed by the after operation
/** * Returns a composed {@code LongConsumer} 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 {@code after} operation will not be performed. * * @param after the operation to perform after this operation * @return a composed {@code LongConsumer} that performs in sequence this * operation followed by the {@code after} operation * @throws NullPointerException if {@code after} is null */
default LongConsumer andThen(LongConsumer after) { Objects.requireNonNull(after); return (long t) -> { accept(t); after.accept(t); }; } }