GWY_READ_CONNECTIONS SAP Function module

GWY_READ_CONNECTIONS is a standard SAP function module available within R/3 SAP systems depending on your version and release level. Below is the pattern details for this FM showing its interface including any import and export parameters, exceptions etc as well as any documentation contributions (Comments) specific to the object.

See here to view full function module documentation and code listing, simply by entering the name GWY_READ_CONNECTIONS into the relevant SAP transaction such as SE37 or SE80.

Associated Function Group: SGWY
Released Date: Not Released
Processing type: Remote-Enabled

Pattern for FM GWY_READ_CONNECTIONS - GWY READ CONNECTIONS

CALL FUNCTION 'GWY_READ_CONNECTIONS' "
* EXPORTING
*   gwhost =                    " gwy_struct-gwhost
*   gwserv =                    " gwy_struct-gwserv
*   disconnect =                " gwy_struct-flag  Terminate connection
* TABLES
*   connections =               " gwy_conn
  EXCEPTIONS
    GWY_UNKNOWN_OPCODE = 1      "               Unknown OP code
    GWY_COMMUNICATION_FAILURE = 2  "            Communication Error
    GWY_GET_TAB_FAILED = 3      "
    GWY_NEWLINE_FAILED = 4      "
    GWY_TABLEN_TOO_SHORT = 5    "
    GWY_GET_OPCODE_FAILED = 6   "
    GWY_GET_GWHOST_FAILED = 7   "
    GWY_GET_GWSERV_FAILED = 8   "
    GWY_MONITOR_DISABLED = 9    "
    .  "  GWY_READ_CONNECTIONS

ABAP code example for Function Module GWY_READ_CONNECTIONS

The ABAP code below is a full code listing to execute function module GWY_READ_CONNECTIONS including all data declarations. The code uses the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the original method of declaring data variables up front. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8).

DATA:
it_connections  
 
 TYPE STANDARD TABLE OF GWY_CONN,"TABLES PARAM
wa_connections
 
 LIKE LINE OF it_connections
.



DATA(ld_gwhost) = some text here


DATA(ld_gwserv) = some text here


DATA(ld_disconnect) = some text here
 

"populate fields of struture and append to itab
append wa_connections to it_connections.
.

CALL FUNCTION 'GWY_READ_CONNECTIONS'
* EXPORTING
*   gwhost =                     ld_gwhost
*   gwserv =                     ld_gwserv
*   disconnect =                 ld_disconnect
* TABLES
*   connections =                it_connections
  EXCEPTIONS
    GWY_UNKNOWN_OPCODE =         1
    GWY_COMMUNICATION_FAILURE =    2
    GWY_GET_TAB_FAILED =         3
    GWY_NEWLINE_FAILED =         4
    GWY_TABLEN_TOO_SHORT =       5
    GWY_GET_OPCODE_FAILED =      6
    GWY_GET_GWHOST_FAILED =      7
    GWY_GET_GWSERV_FAILED =      8
    GWY_MONITOR_DISABLED =       9
    .  "  GWY_READ_CONNECTIONS

IF SY-SUBRC EQ 0.
  "All OK
ELSEIF SY-SUBRC EQ 1. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 2. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 3. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 4. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 5. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 6. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 7. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 8. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 9. "Exception
  "Add code for exception here
ENDIF.

ABAP code to compare 7.40 inline data declaration with original syntax

The below ABAP code uses the older none in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. It may also be useful if you are using an older version of SAP as some of the newer syntax above, such as the @DATA is not available until 4.70 EHP 8.

DATA:

ld_gwhost
 
 TYPE GWY_STRUCT-GWHOST ,
it_connections
 
 TYPE STANDARD TABLE OF GWY_CONN ,
wa_connections
 
 LIKE LINE OF it_connections,
ld_gwserv
 
 TYPE GWY_STRUCT-GWSERV ,
ld_disconnect
 
 TYPE GWY_STRUCT-FLAG .



ld_gwhost = some text here 

"populate fields of struture and append to itab
append wa_connections to it_connections.

ld_gwserv = some text here

ld_disconnect = some text here