nashorn/samples/sort_by_java8.js
changeset 32523 d8e365854b3c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/samples/sort_by_java8.js	Fri Sep 04 17:11:06 2015 +0530
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Simple sorting with Java8 APIs
+
+// Separation key-extraction from key ordering
+
+// Simple demo for Comparator.comparing
+// http://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html#comparing-java.util.function.Function-
+
+// data to be sorted
+var cards = [
+   { name: "hello", email: "foo@hello.com" },
+   { name: "world", email: "bar@world.com" },
+   { name: "see", email: "see@dontsee.com" },
+];
+
+var Collections = java.util.Collections;
+var Comparator = java.util.Comparator;
+
+// sort records name in reverse order of names
+Collections.sort(cards,
+  Comparator.comparing(function(a) a.name).reversed());
+
+print(JSON.stringify(cards))
+
+// sort records by email
+Collections.sort(cards,
+  Comparator.comparing(function(a) a.email));
+
+print(JSON.stringify(cards))