diff --git a/querydsl-core/src/main/java/com/mysema/query/grammar/QComparable.java b/querydsl-core/src/main/java/com/mysema/query/grammar/QComparable.java
new file mode 100644
index 000000000..2ad244325
--- /dev/null
+++ b/querydsl-core/src/main/java/com/mysema/query/grammar/QComparable.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2008 Mysema Ltd.
+ * All rights reserved.
+ * 
+ */
+package com.mysema.query.grammar;
+
+import com.mysema.query.grammar.types.Expr;
+import com.mysema.query.grammar.types.SimpleExprFactory;
+import com.mysema.query.grammar.types.Expr.EBoolean;
+
+/**
+ * QComparable provides helper methods to construct comparison expressions for types
+ * that don't implement Comparable in generic fashion such as Joda time types
+ *
+ * @author tiwe
+ * @version $Id$
+ */
+public class QComparable {
+   
+    protected static final SimpleExprFactory factory = new SimpleExprFactory();
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean before(Expr<A> left, A right) {
+        return factory.createBoolean(Ops.BEFORE, left, factory.createConstant(right));
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean before(Expr<A> left, Expr<A> right) {
+        return factory.createBoolean(Ops.BEFORE, left, right);
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean after(Expr<A> left, A right) {
+        return factory.createBoolean(Ops.AFTER, left, factory.createConstant(right));
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean after(Expr<A> left, Expr<A> right) {
+        return factory.createBoolean(Ops.AFTER, left, right);
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean boe(Expr<A> left,A right) {
+        return factory.createBoolean(Ops.BOE, left, factory.createConstant(right));
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean boe(Expr<A> left, Expr<A> right) {
+        return factory.createBoolean(Ops.BOE, left, right);
+    }
+
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean aoe(Expr<A> left, A right) {
+        return factory.createBoolean(Ops.AOE, left, factory.createConstant(right));
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static <A extends Comparable> EBoolean aoe(Expr<A> left, Expr<A> right) {
+        return factory.createBoolean(Ops.AOE, left, right);
+    }
+}
diff --git a/querydsl-core/src/main/java/com/mysema/query/grammar/QDateTime.java b/querydsl-core/src/main/java/com/mysema/query/grammar/QDateTime.java
index 1e5db7a89..01961d5bd 100644
--- a/querydsl-core/src/main/java/com/mysema/query/grammar/QDateTime.java
+++ b/querydsl-core/src/main/java/com/mysema/query/grammar/QDateTime.java
@@ -19,42 +19,37 @@ import com.mysema.query.grammar.types.Expr.ENumber;
  * @author tiwe
  * @version $Id$
  */
+// TODO : provide Joda Time variant ?!?
 public class QDateTime{
 
     private static final SimpleExprFactory factory = new SimpleExprFactory();
-    
+          
     public static EComparable<Date> currentDate() {
         return factory.createComparable(Date.class, Ops.OpDateTime.CURRENT_DATE);
     }
 
     public static EComparable<Date> currentTime() {
-        return factory.createComparable(Date.class, Ops.OpDateTime.CURRENT_DATE);
-        
+        return factory.createComparable(Date.class, Ops.OpDateTime.CURRENT_DATE);        
     }
 
     public static ENumber<Integer> dayOfMonth(Expr<Date> d) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.DAY_OF_MONTH, d);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.DAY_OF_MONTH, d);        
     }
 
     public static ENumber<Integer> dayOfWeek(Expr<Date> d) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.DAY_OF_WEEK, d);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.DAY_OF_WEEK, d);        
     }
 
     public static ENumber<Integer> dayOfYear(Expr<Date> d) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.DAY_OF_YEAR, d);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.DAY_OF_YEAR, d);        
     }
 
     public static ENumber<Integer> hour(Expr<Time> t) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.HOUR, t);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.HOUR, t);        
     }
 
     public static ENumber<Integer> minute(Expr<Time> t) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.MINUTE, t);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.MINUTE, t);        
     }
 
     public static ENumber<Integer> year(Expr<Date> d) {
@@ -62,8 +57,7 @@ public class QDateTime{
     }
 
     public static ENumber<Integer> week(Expr<Date> d) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.WEEK, d);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.WEEK, d);        
     }
 
     public static ENumber<Integer> second(Expr<Time> t) {
@@ -71,13 +65,11 @@ public class QDateTime{
     }
 
     public static EComparable<Date> now() {
-        return factory.createComparable(Date.class, Ops.OpDateTime.CURRENT_TIME);
-        
+        return factory.createComparable(Date.class, Ops.OpDateTime.CURRENT_TIME);        
     }
 
     public static ENumber<Integer> month(Expr<Date> d) {
-        return factory.createNumber(Integer.class, Ops.OpDateTime.MONTH, d);
-        
+        return factory.createNumber(Integer.class, Ops.OpDateTime.MONTH, d);        
     }
 
 }