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streamsupport is a backport of the Java 8 java.util.function (functional interfaces) and java.util.stream (streams) API for Java 6 / 7 and Android developers

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/*
 * Copyright (c) 2012, 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 java8.util.stream;

final class SinkDefaults {

    static final class OfInt {

        static void accept(Sink.OfInt this_, Integer i) {
            this_.accept(i.intValue());
        }

        private OfInt() {
        }
    }

    static final class OfLong {

        static void accept(Sink.OfLong this_, Long i) {
            this_.accept(i.longValue());
        }

        private OfLong() {
        }
    }

    static final class OfDouble {

        static void accept(Sink.OfDouble this_, Double i) {
            this_.accept(i.doubleValue());
        }

        private OfDouble() {
        }
    }

    /**
     * Doesn't accept a primitive value of a particular type (either int, long or double).
     *
     * Implementation Requirements:
 The implementation must throw an IllegalStateException.
     *
     * @throws IllegalStateException if the sink doesn't accept a primitive value of a particular type
     */
    static  void reject() {
        throw new IllegalStateException("called wrong accept method");
    }

    private SinkDefaults() {
    }
}