# HG changeset patch # User mduigou # Date 1365033119 25200 # Node ID 3314ccba22b11bdcc6d0775ae356110004e67b89 # Parent de228734b7427e8586e48442c51720a50b826a09 8010948: Add conversion functional interfaces Reviewed-by: mduigou Contributed-by: Brian Goetz diff --git a/src/share/classes/java/util/function/DoubleToIntFunction.java b/src/share/classes/java/util/function/DoubleToIntFunction.java new file mode 100755 --- /dev/null +++ b/src/share/classes/java/util/function/DoubleToIntFunction.java @@ -0,0 +1,45 @@ +/* + * 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 java.util.function; + +/** + * Apply a function to the input argument, yielding an appropriate result. + * This is the {@code double}-to-{@code int} specialization for {@link Function}. + * + * @see Function + * @since 1.8 + */ +@FunctionalInterface +public interface DoubleToIntFunction { + + /** + * Compute the result of applying the function to the input arguments. + * + * @param value the input value + * @return the function result value + */ + int applyAsInt(double value); +} + diff --git a/src/share/classes/java/util/function/DoubleToLongFunction.java b/src/share/classes/java/util/function/DoubleToLongFunction.java new file mode 100755 --- /dev/null +++ b/src/share/classes/java/util/function/DoubleToLongFunction.java @@ -0,0 +1,45 @@ +/* + * 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 java.util.function; + +/** + * Apply a function to the input argument, yielding an appropriate result. + * This is the {@code double}-to-{@code long} specialization for {@link Function}. + * + * @see Function + * @since 1.8 + */ +@FunctionalInterface +public interface DoubleToLongFunction { + + /** + * Compute the result of applying the function to the input arguments. + * + * @param value the input value + * @return the function result value + */ + long applyAsLong(double value); +} + diff --git a/src/share/classes/java/util/function/IntToDoubleFunction.java b/src/share/classes/java/util/function/IntToDoubleFunction.java new file mode 100755 --- /dev/null +++ b/src/share/classes/java/util/function/IntToDoubleFunction.java @@ -0,0 +1,44 @@ +/* + * 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 java.util.function; + +/** + * Apply a function to the input argument, yielding an appropriate result. + * This is the {@code int}-to-{@code double} specialization for {@link Function}. + * + * @see Function + * @since 1.8 + */ +@FunctionalInterface +public interface IntToDoubleFunction { + + /** + * Compute the result of applying the function to the input arguments. + * + * @param value the input value + * @return the function result value + */ + double applyAsDouble(int value); +} diff --git a/src/share/classes/java/util/function/IntToLongFunction.java b/src/share/classes/java/util/function/IntToLongFunction.java new file mode 100755 --- /dev/null +++ b/src/share/classes/java/util/function/IntToLongFunction.java @@ -0,0 +1,44 @@ +/* + * 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 java.util.function; + +/** + * Apply a function to the input argument, yielding an appropriate result. + * This is the {@code int}-to-{@code long} specialization for {@link Function}. + * + * @see Function + * @since 1.8 + */ +@FunctionalInterface +public interface IntToLongFunction { + + /** + * Compute the result of applying the function to the input arguments. + * + * @param value the input value + * @return the function result value + */ + long applyAsLong(int value); +} diff --git a/src/share/classes/java/util/function/LongToDoubleFunction.java b/src/share/classes/java/util/function/LongToDoubleFunction.java new file mode 100755 --- /dev/null +++ b/src/share/classes/java/util/function/LongToDoubleFunction.java @@ -0,0 +1,45 @@ +/* + * 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 java.util.function; + +/** + * Apply a function to the input argument, yielding an appropriate result. + * This is the {@code long}-to-{@code double} specialization for {@link Function}. + * + * @see Function + * @since 1.8 + */ +@FunctionalInterface +public interface LongToDoubleFunction { + + /** + * Compute the result of applying the function to the input arguments. + * + * @param value the input value + * @return the function result value + */ + double applyAsDouble(long value); +} + diff --git a/src/share/classes/java/util/function/LongToIntFunction.java b/src/share/classes/java/util/function/LongToIntFunction.java new file mode 100755 --- /dev/null +++ b/src/share/classes/java/util/function/LongToIntFunction.java @@ -0,0 +1,45 @@ +/* + * 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 java.util.function; + +/** + * Apply a function to the input argument, yielding an appropriate result. + * This is the {@code long}-to-{@code int} specialization for {@link Function}. + * + * @see Function + * @since 1.8 + */ +@FunctionalInterface +public interface LongToIntFunction { + + /** + * Compute the result of applying the function to the input arguments. + * + * @param value the input value + * @return the function result value + */ + int applyAsInt(long value); +} +