Method: READ_ELEMENT
Method: VALIDATE_UNARY_TYPES
Method: PROCESS_NODE
Method: /IWCOR/IF_DS_EXPR_VISITOR~PROCESS_UNARY
Method: CONSTRUCTOR
Method: EVALUATE_FILTER_FOR_STRUCTURE
Method: EDM_FILTER_TO_ABAP
Method: GET_FILTER_STRING
Method: CREATE_FILTER_TREE