=== modified file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/filter/OpFactory.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/filter/OpFactory.java	2014-03-18 08:10:10 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/filter/OpFactory.java	2014-05-06 03:02:33 +0000
@@ -37,6 +37,7 @@
 import org.hisp.dhis.dxf2.filter.ops.LtOp;
 import org.hisp.dhis.dxf2.filter.ops.LteOp;
 import org.hisp.dhis.dxf2.filter.ops.NeqOp;
+import org.hisp.dhis.dxf2.filter.ops.NnullOp;
 import org.hisp.dhis.dxf2.filter.ops.NullOp;
 import org.hisp.dhis.dxf2.filter.ops.Op;
 
@@ -59,6 +60,7 @@
         register( "lt", LtOp.class );
         register( "lte", LteOp.class );
         register( "null", NullOp.class );
+        register( "nnull", NnullOp.class );
         register( "empty", EmptyCollectionOp.class );
     }
 

=== added file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/filter/ops/NnullOp.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/filter/ops/NnullOp.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/filter/ops/NnullOp.java	2014-05-06 03:02:33 +0000
@@ -0,0 +1,52 @@
+package org.hisp.dhis.dxf2.filter.ops;
+
+/*
+ * Copyright (c) 2004-2014, University of Oslo
+ * 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 the HISP project 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.
+ */
+
+/**
+* @author Morten Olav Hansen <mortenoh@gmail.com>
+*/
+public class NnullOp extends Op
+{
+    @Override
+    public boolean wantValue()
+    {
+        return false;
+    }
+
+    @Override
+    public OpStatus evaluate( Object object )
+    {
+        if ( object != null )
+        {
+            return OpStatus.INCLUDE;
+        }
+
+        return OpStatus.IGNORE;
+    }
+}