Siebel: Script Libraries

Siebel 8 (or ST engine to be more specific) has a elegant way of calling business service methods. Script libraries provide the ability to call functions on a business service directly, no more is the need for building property sets and setting the parameters!

If you have not already used script libraries, do take a look. The reduced coding implies lesser mistakes, debugging time and easier maintenance! The simple demo below illustrates the usage.

Step 1:
Create the target business service 'COG Test Script Lib'. A custom function 'Echo' is defined here.

Service_PreInvokeMethod:

function Service_PreInvokeMethod (MethodName, Inputs, Outputs)

{

return (CancelOperation);

}

Echo:
function Echo (MyString)

{

return "Echoed: " + MyString;

}

Step 2:
Create the caller service 'COG Test Script Lib Call'. There is only one method here - 'Service_PreInvokeMethod', and the following code has to be input:

function Service_PreInvokeMethod (MethodName, Inputs, Outputs) {

var bsTest = TheApplication().GetService("COG Test Script Lib");

Outputs.SetProperty("Output", bsTest.Echo("abc"));

bsTest = null;

return (CancelOperation);

}

Compare this to the approach in earlier versions. In most probability you will be coding something like:

function Service_PreInvokeMethod (MethodName, Inputs, Outputs)

{

var bsTest = TheApplication().GetService("COG Test Script Lib");

var psIn = TheApplication().NewPropertySet();

var psOut = TheApplication().NewPropertySet();

psIn.SetProperty("MyString", "abc");

bsTest.InvokeMethod(psIn, psOut);

Outputs.SetProperty("Output", psOut.GetProperty("ReturnString"));

psOut = null;

psIn = null;

bsTest = null;

return (CancelOperation);

}

And, don't forget to add a line or two in the target service 'COG Test Script Lib' to set required properties in the output propertyset. Now, a simple 'bsTest.Echo("abc")' does the job. Isn't life simpler?