fix #378 - add DATE type support to RDFTypes

(cherry picked from commit ceedf97)

Author: sammefford

src/main/java/com/marklogic/client/semantics/RDFTypes.java

@@ -27,6 +27,7 @@ public enum RDFTypes {
     DOUBLE             ("double"),
     FLOAT              ("float"),
     TIME               ("time"),
+    DATE               ("date"),
     DATETIME           ("dateTime"),
     GYEAR              ("gYear"),
     GMONTH             ("gMonth"),

src/test/java/com/marklogic/client/test/SPARQLQueryDefinitionTest.java

@@ -43,6 +43,7 @@ public class SPARQLQueryDefinitionTest {
             + "      :r1 :p3 \"1\"^^xsd:" + RDFTypes.DOUBLE              + " . "
             + "      :r1 :p3 \"1\"^^xsd:" + RDFTypes.FLOAT               + " . "
             + "      :r1 :p3 \"00:01:01\"^^xsd:" + RDFTypes.TIME         + " . "
+            + "      :r1 :p3 \"2014-09-01\"^^xsd:" + RDFTypes.DATE + " ."
             + "      :r1 :p3 \"2014-09-01T00:00:00+02:00\"^^xsd:" + RDFTypes.DATETIME + " ."
             + "      :r1 :p3 \"2001\"^^xsd:" + RDFTypes.GYEAR            + " . "
             + "      :r1 :p3 \"--01\"^^xsd:" + RDFTypes.GMONTH           + " . "
@@ -163,6 +164,13 @@ public void testBindings() {
         assertFalse(smgr.executeAsk(askQuery));
         bindings.clear();
 
+        askQuery.withBinding("o", "2014-09-01", RDFTypes.DATE);
+        assertTrue(smgr.executeAsk(askQuery));
+        bindings.clear();
+        askQuery.withBinding("o", "2014-09-02", RDFTypes.DATE);
+        assertFalse(smgr.executeAsk(askQuery));
+        bindings.clear();
+
         askQuery.withBinding("o", "2014-09-01T00:00:00+02:00", RDFTypes.DATETIME);
         assertTrue(smgr.executeAsk(askQuery));
         bindings.clear();