project BLF > class Database Component > method apiMaintainByXml
Description
Generic method for creating or updating object data.
This method provides the same functionality as the XML daemon.
Parameters
imDocument | input | memptr | contents of the XML document (or use parameter icFileName) |
icFileName | input | character | file name of the xml document (or use parameter imDocument) |
olSuccess | output | logical | update completed successfully |
tXmlObjects | output | temp-table | |
oiReturnStatus | output | integer | Return status of the method. |
Internal usage
BLF
program code (program3/database.p)
create x-document vhDocument in widget-pool "non-persistent".
if icFileName = "" or
icFileName = ?
then vhDocument:load("MEMPTR", imDocument, no) no-error.
else vhDocument:load("FILE", icFileName, no) no-error.
if error-status:num-messages > 0
then do viErrors = 1 to error-status:num-messages:
assign vcErrors = vcErrors + chr(2) + error-status:get-message(viErrors).
end.
if vcErrors <> ""
then do:
<M-1 run SetMessage
(input trim(#T-4'The XML document could not be read.':100(371)t-4#) (icMessage),
input '' (icArguments),
input '' (icFieldName),
input '' (icFieldValue),
input 'D' (icType),
input 3 (iiSeverity),
input '' (icRowid),
input 'BLF-304':U (icFcMsgNumber),
input '' (icFcExplanation),
input '' (icFcIdentification),
input '' (icFcContext),
output viFcReturnSuper (oiReturnStatus)) in database>
do viErrors = 2 to num-entries(vcErrors,chr(2)):
<M-3 run SetMessage
(input entry(viErrors, vcErrors, chr(2)) (icMessage),
input '' (icArguments),
input '' (icFieldName),
input '' (icFieldValue),
input 'S' (icType),
input 3 (iiSeverity),
input '' (icRowid),
input 'BLF-305':U (icFcMsgNumber),
input '' (icFcExplanation),
input '' (icFcIdentification),
input '' (icFcContext),
output viFcReturnSuper (oiReturnStatus)) in database>
end.
assign oiReturnStatus = -3.
return.
end.
/* Run without instance */
assign vhFcComponent = ?.
<M-2 run LoadXmlDocument
(input vhDocument (ihDocument),
input vcFcComponentName (icClassName),
input '' (icOverrideAction),
output tXmlObjects (tXmlObjectsLoaded),
output olSuccess (olSuccess),
output viFcReturnSuper (oiReturnStatus)) in BXmlDaemonProcessor>
if viFcReturnSuper = 0 and
olSuccess <> true
then assign viFcReturnSuper = -3.
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.
finally:
delete object vhDocument.
assign vhDocument = ?.
end finally.
Sample code: how to call this method through RPCRequestService (QXtend Inbound)
define temp-table ttContext no-undo
field propertyQualifier as character
field propertyName as character
field propertyValue as character
index entityContext is primary unique
propertyQualifier
propertyName
index propertyQualifier
propertyQualifier.
define dataset dsContext for ttContext.
define variable vhContextDS as handle no-undo.
define variable vhExceptionDS as handle no-undo.
define variable vhServer as handle no-undo.
define variable vhInputDS as handle no-undo.
define variable vhInputOutputDS as handle no-undo.
define variable vhOutputDS as handle no-undo.
define variable vhParameter as handle no-undo.
/* Create context */
create ttContext.
assign ttContext.propertyName = "programName"
ttContext.propertyValue = "database".
create ttContext.
assign ttContext.propertyName = "methodName"
ttContext.propertyValue = "apiMaintainByXml".
create ttContext.
assign ttContext.propertyName = "applicationId"
ttContext.propertyValue = "fin".
create ttContext.
assign ttContext.propertyName = "entity"
ttContext.propertyValue = "1000".
create ttContext.
assign ttContext.propertyName = "userName"
ttContext.propertyValue = "mfg".
create ttContext.
assign ttContext.propertyName = "password"
ttContext.propertyValue = "".
/* Create input dataset */
create dataset vhInputDS.
vhInputDS:read-xmlschema("file", "xml/database.apimaintainbyxml.i.xsd", ?).
vhParameter = vhInputDS:get-buffer-handle("tParameterI").
vhParameter:buffer-create().
assign vhParameter::imDocument = <parameter value>
vhParameter::icFileName = <parameter value>.
/* Connect the AppServer */
create server vhServer.
vhServer:connect("-URL <appserver-url>").
if not vhServer:connected()
then do:
message "Could not connect AppServer" view-as alert-box error title "Error".
return.
end.
/* Run */
assign vhContextDS = dataset dsContext:handle.
run program/rpcrequestservice.p on vhServer
(input-output dataset-handle vhContextDS by-reference,
output dataset-handle vhExceptionDS,
input dataset-handle vhInputDS by-reference,
input-output dataset-handle vhInputOutputDS by-reference,
output dataset-handle vhOutputDS).
/* Handle output however you want, in this example, we dump it to xml */
if valid-handle(vhExceptionDS)
then vhExceptionDS:write-xml("file", "Exceptions.xml", true).
if valid-handle(vhOutputDS)
then vhOutputDS:write-xml("file", "Output.xml", true).
/* Cleanup */
vhServer:disconnect().
assign vhServer = ?.
if valid-handle(vhInputDS)
then delete object vhInputDS.
if valid-handle(vhOutputDS)
then delete object vhOutputDS.
if valid-handle(vhExceptionDS)
then delete object vhExceptionDS.