boolean function ( ) { return returnsBag ( ) ; }
tells whether evaluation will return a bag or a single value . concode_field_sep VariableDefinition definition concode_elem_sep VariableManager manager concode_elem_sep String variableId concode_field_sep String encode concode_elem_sep void encode concode_elem_sep List getChildren concode_elem_sep boolean returnsBag concode_elem_sep URI getType concode_elem_sep String getVariableId concode_elem_sep VariableReference getInstance concode_elem_sep VariableDefinition getReferencedDefinition concode_elem_sep EvaluationResult evaluate