Added samples for Xtend

samples/Xtend/Movies.xtend

@@ -0,0 +1,60 @@
+/*******************************************************************************
+ * Copyright (c) 2012 itemis AG (http://www.itemis.eu) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Author - Sven Efftinge
+ *******************************************************************************/
+package example6
+
+import org.junit.Test
+import static org.junit.Assert.*
+import java.io.FileReader
+import java.util.Set
+import static extension com.google.common.io.CharStreams.*
+
+class Movies {
+	
+	/**
+	 * @return the total number of action movies
+	 */ 
+	@Test def void numberOfActionMovies() {
+		assertEquals(828, movies.filter[categories.contains('Action')].size)
+	}
+	
+	/**
+	 * @return the year the best rated movie of 80ies (1980-1989) was released.
+	 */
+	@Test def void yearOfBestMovieFrom80ies() {
+		assertEquals(1989, movies.filter[(1980..1989).contains(year)].sortBy[rating].last.year)
+	}
+	
+	/**
+	 * @return the sum of the number of votes of the two top rated movies.
+	 */
+	@Test def void sumOfVotesOfTop2() {
+		val long movies = movies.sortBy[-rating].take(2).map[numberOfVotes].reduce[a, b| a + b]
+		assertEquals(47_229, movies)
+	}
+	
+	val movies = new FileReader('data.csv').readLines.map[ line |
+		val segments = line.split('  ').iterator
+		return new Movie(
+			segments.next, 
+			Integer::parseInt(segments.next), 
+			Double::parseDouble(segments.next), 
+			Long::parseLong(segments.next), 
+			segments.toSet
+		)
+	]
+}
+
+@Data class Movie {
+	String title
+	int year
+	double rating
+	long numberOfVotes
+	Set<String> categories 
+}