Method: REFRESH_INSTANCE_CTX
Method: CREATE_ATTRIBUTE_DESCRIPTOR
Method: IF_SALV_WD_COMP_TABLE_DATA~NODE_DATA_TECHINFO_FOR_COLUMNS
Method: IF_SALV_BS_DATA_CONVERSION~GET_EXTERNAL_VALUE
Method: IF_SALV_BS_DATA_DEFINITION~GET_ATTRIBUTES
Method: COLLECT_DATA