Mercurial > jdk8-mips64-public > nashorn / file comparison
comparison: samples/sort_by_java8.js
samples/sort_by_java8.js
- changeset 1524
- 3f4320a01539
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| 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 | |
| 6 * are met: | |
| 7 * | |
| 8 * - Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * | |
| 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, | |
| 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 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)) |
