1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

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     9  *     notice, this list of conditions and the following disclaimer.

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    11  *   - Redistributions in binary form must reproduce the above copyright

    12  *     notice, this list of conditions and the following disclaimer in the

    13  *     documentation and/or other materials provided with the distribution.

    14  *

    15  *   - Neither the name of Oracle nor the names of its

    16  *     contributors may be used to endorse or promote products derived

    17  *     from this software without specific prior written permission.

    18  *

    19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

    20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

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    29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    30  */

    31 

    32 // Simple sorting with Java8 APIs

    33 

    34 // Separation key-extraction from key ordering

    35 

    36 // Simple demo for Comparator.comparing

    37 // http://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html#comparing-java.util.function.Function-

    38 

    39 // data to be sorted

    40 var cards = [

    41    { name: "hello", email: "foo@hello.com" },

    42    { name: "world", email: "bar@world.com" },

    43    { name: "see", email: "see@dontsee.com" },

    44 ];

    45 

    46 var Collections = java.util.Collections;

    47 var Comparator = java.util.Comparator;

    48 

    49 // sort records name in reverse order of names

    50 Collections.sort(cards,

    51   Comparator.comparing(function(a) a.name).reversed());

    52 

    53 print(JSON.stringify(cards))

    54 

    55 // sort records by email

    56 Collections.sort(cards,

    57   Comparator.comparing(function(a) a.email));

    58 

    59 print(JSON.stringify(cards))