sap - Return a list of all atributes of a persistent class in abap -

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i got persistent class on custom table. get_persistent_by_query can list of objects. how can objects of atributes printed user (e.g alv)?

can call instance function if click on somehow?

here dynamic solution, query_data result returned call get_persistent_by_query( ). in end data stored in structured table <table>, can use display in alv. note there little control on order of field. real use you'd have add error handling well.

data: pers_obj_desc   type ref cl_abap_classdescr,       pers_query_data type ref data,       field_cat       type lvc_t_fcat.  field-symbols: <table> type standard table.  loop @ query_data assigning field-symbol(<pers_data>).    @ first.     pers_obj_desc ?= cl_abap_typedescr=>describe_by_object_ref( p_object_ref = <pers_data> ).      loop @ pers_obj_desc->attributes assigning field-symbol(<attr_desc>).       append initial line field_cat assigning field-symbol(<field_cat>).       <field_cat>-fieldname = <attr_desc>-name.       <field_cat>-intlen    = <attr_desc>-length.       <field_cat>-datatype  = <attr_desc>-type_kind.     endloop.      cl_alv_table_create=>create_dynamic_table(       exporting         it_fieldcatalog = field_cat        importing          ep_table       = pers_query_data     ).     assign pers_query_data->* <table>.   endat. " first    append initial line <table> assigning field-symbol(<line>).   loop @ pers_obj_desc->attributes assigning <attr_desc>.     assign component <attr_desc>-name of structure <line> field-symbol(<field>).     data(getter) = 'get_' && <attr_desc>-name.     call method <pers_data>->(getter) receiving result = <field>.   endloop.  endloop.

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