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tony |
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program myudrtestbed;
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{$mode delphi}
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{$codepage UTF8}
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{$interfaces COM}
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uses Classes, FBUDRController, FBUdrPlugin, IB, udr_myrowcount;
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procedure TestRowCount(UDRPlugin: TFBUdrPluginEmulator);
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var MyRowCount: TExternalFunctionWrapper;
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Transaction: ITransaction;
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Rows: integer;
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begin
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{Get the emulator wrapper for the row_count function, declared as MyRowCount}
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MyRowCount := UDRPlugin.makeFunction('MYROWCOUNT', {Name of Function in database - case sensitive}
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'', {package name is empty}
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'myudrlibrary!row_count' {entry point}
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);
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try
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writeln('Row Count for Employee');
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{set the input parameter to the EMPLOYEE table}
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MyRowCount.InputParams[0].AsString := 'EMPLOYEE';
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Transaction := UDRPlugin.Attachment.StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit);
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{invoke the function and print the result}
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writeln('Employee Row Count = ',MyRowCount.Execute(Transaction).AsInteger);
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writeln;
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finally
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MyRowCount.Free
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end;
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end;
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procedure RunTest;
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var Attachment: IAttachment;
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DPB: IDPB;
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UDRPlugin: TFBUdrPluginEmulator;
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begin
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{Open a connection with the example employee database. Amend database parameters
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as needed.}
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DPB := FirebirdAPI.AllocateDPB;
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DPB.Add(isc_dpb_user_name).setAsString('SYSDBA');
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DPB.Add(isc_dpb_password).setAsString('masterkey');
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DPB.Add(isc_dpb_lc_ctype).setAsString('UTF8');
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DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(3);
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Attachment := FirebirdAPI.OpenDatabase('localhost:employee',DPB);
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try
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UDRPlugin := TFBUdrPluginEmulator.Create(FBUDRControllerOptions.ModuleName);
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try
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{initialize the emulator with the database connection}
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UDRPlugin.Attachment := Attachment;
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TestRowCount(UDRPlugin);
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finally
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UDRPlugin.Free;
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end;
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finally
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Attachment.Disconnect(true);
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end;
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end;
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begin
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with FBUDRControllerOptions do
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begin
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ModuleName := 'myudrlibrary';
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AllowConfigFileOverrides := true;
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LogFileNameTemplate := '$LOGDIR$MODULE.log';
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LogOptions := [loLogFunctions, loLogProcedures, loLogTriggers, loDetails];
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end;
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RunTest;
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{$IFDEF WINDOWS}
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readln; {force console window to stay open}
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{$ENDIF}
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end.
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