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Saflet101Invoke

Contents Invoking Saflets (subroutining) Walkthrough Add Input Parameter Add Output Parameter Finish the sub.saflet base.saflet Initiator Hover Add Option

Invoking Saflets (subroutining)

Walkthrough

Download Saflet Used in this Walkthrough


For this walkthrough; you will need to be connected to a SafiServer (see Connection to SafiServer from SafiWorkshop).

You will also need to create a Project and 2 Saflets with the Custom Initiator selected as the starting initiator (See: Creating a Project and Saflet). Lets name them base.saflet and sub.saflet

For this walkthrough base.saflet will invoke sub.saflet

In sub.saflet add two variables named: myVar1 and myVar2 both with the type of Text and no initial value:

Add Input Parameter

Double click the initiator (in this case the CustomInitiator step). Press the plus (+) button to add a parameter. For the name enter myInput:



Press OK and select myVar1



Press OK

Add Output Parameter

Select the Outputs tab and press the plus (+) button. This is just like adding the input parameter: for the name use myOutput and select myVar2 for the variable. After added, the dialog should look like this:



Press OK. Your workspace should look like this:

Finish the sub.saflet

Add the following ActionSteps

• (1) DebugLog
• (1) Assignment

Connected like this:



For the DebugLog step set the Message field to the following script:

"sub.saflet passed a variable of: " + myVar1;

For the Assignment step set myVar2 to the following Value script:

myVar1 + "-changed";

Save and Publish the Saflet. Now switch to base.saflet

base.saflet

In base.saflet add two variables:

• myPassVar with the type of Text and an initial value of foo
• myReceivedVar with the type of Text and no initial value

Add the following ActionSteps

• (1) DebugLog
• (1) InvokeSaflet (found under Logic)

Connected like this:



Double-click the InvokeSaflet step and click the edit button (...) on the Target Saflet field. This will bring up the Saflet chooser. Select sub by checking the box next to the name:



Press OK and OK again and you should see the Parameters auto-created in the InvokeSaflet step



Double click the myInput box and select myPassVar to assign



Double click the myOutput box and select myReceivedVar to assign



Finally, for the DebugLog step set the Message field to the following script:

"base.saflet received for myOutput: " + myReceivedVar;

Save and Publish the Saflet.

Launch the base.saflet using the Custom Initiator Launcher



You should see the following result in the Console pane

Initiator Hover Add Option

You can also add parameters by hovering over the initiator and select the "Add input parameter" or "Add output parameter" button (see illustration below)