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8010948: Add conversion functional interfaces

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Reviewed-by: mduigou, dholmes
This commit is contained in:
Brian Goetz 2013-04-10 14:06:21 -07:00 committed by Mike Duigou
parent dc6fd2d5dd
commit 87e056aa00
6 changed files with 276 additions and 0 deletions
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46
jdk/src/share/classes/java/util/function/DoubleToIntFunction.java Normal file
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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 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
* @see IntToDoubleFunction
* @see LongToIntFunction
* @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);
}

46
jdk/src/share/classes/java/util/function/DoubleToLongFunction.java Normal file
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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 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
* @see LongToDoubleFunction
* @see IntToLongFunction
* @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);
}

46
jdk/src/share/classes/java/util/function/IntToDoubleFunction.java Normal file
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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 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
* @see DoubleToIntFunction
* @see LongToDoubleFunction
* @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);
}

46
jdk/src/share/classes/java/util/function/IntToLongFunction.java Normal file
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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 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
* @see LongToIntFunction
* @see DoubleToLongFunction
* @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);
}

46
jdk/src/share/classes/java/util/function/LongToDoubleFunction.java Normal file
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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 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
* @see DoubleToLongFunction
* @see IntToDoubleFunction
* @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);
}

46
jdk/src/share/classes/java/util/function/LongToIntFunction.java Normal file
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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 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
* @see IntToLongFunction
* @see DoubleToIntFunction
* @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);
}