Writing DRL is not easy for people new to drools. Can someone please
help me understand how to write this simple rule? You can see the
approaches I have taken.
In this case I do not have getters and setters for the attributes I am
checking. I need to pass parameters to the object for it to get the
I can't get any of the code in the when block to be syntax proper.
Existing DRL doc is lacking in this area.
catalogObject : CatalogObject( getElementValue("depth") ==
null, getElementValue("depth") == "")
# String depth = CatalogObject.getElementValue("depth")
# depth == null
# depth == ""
# catalogObject : CatalogObject( depth == null)
# catalogObject : CatalogObject( depth == "")
logWriter : LogWriter();
logWriter.logDebug("Package Depth is Blank");
System.out.println( "Package Depth is Blank" );