DATACMNS-303 - Added support for count projects in query parsing.

PartTree now supports query methods starting with "count…By" and exposes that fact through an isCountProjection() method to be used by query creators upstream

src/test/java/org/springframework/data/repository/query/parser/PartTreeUnitTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2010 the original author or authors.
+ * Copyright 2008-2013 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
@@ -318,6 +318,37 @@ public class PartTreeUnitTests {
 		assertTrue(tree.getSort().getOrderFor("år").isAscending());
 	}
 
+	/**
+	 * @see DATACMNS-303
+	 */
+	@Test
+	public void identifiesSimpleCountByCorrectly() {
+
+		PartTree tree = new PartTree("countByLastname", User.class);
+		assertThat(tree.isCountProjection(), is(true));
+	}
+
+	/**
+	 * @see DATACMNS-303
+	 */
+	@Test
+	public void identifiesExtendedCountByCorrectly() {
+
+		PartTree tree = new PartTree("countUserByLastname", User.class);
+		assertThat(tree.isCountProjection(), is(true));
+	}
+
+	/**
+	 * @see DATACMNS-303
+	 */
+	@Test
+	public void identifiesCountAndDistinctByCorrectly() {
+
+		PartTree tree = new PartTree("countDistinctUserByLastname", User.class);
+		assertThat(tree.isCountProjection(), is(true));
+		assertThat(tree.isDistinct(), is(true));
+	}
+
 	private static void assertType(Iterable<String> sources, Type type, String property) {
 		assertType(sources, type, property, 1, true);
 	}