Methods, systems and articles of manufacture of processing a multi-state
attribute field query. One embodiment provides a method of processing a
multi-state attribute field query, comprising instantiating a plurality
of live objects; performing, by each live object, an attribute operation,
wherein at least one attribute operation is a comparison operation
associated with attributes of the query. The plurality of live objects
access a global status storage area only when an operand of the
comparison operation is null or error. In any case, execution control is
passed from each live object to an adjacent live object.