Concept: Subassemblies

A subassembly is a processing chain whose first component is a

local-in

transport. The

local-in

defines an entry point to the processing chain, enabling it to be called by a

local-out

transport in the same assembly or in another assembly. You can include several subassemblies and

local-out

transports within the same assembly.

Because you can invoke them at will, subassemblies enable you to encapsulate processing logic for reuse. You can think of them as programming subroutines. The default ID for a

local-in

transport is

SubRoutine

. The default ID for a

local-out

transport is

CallSubRoutine

.

Subassemblies have parameters. You specify them on the

local-in

transport and assign them values on the

local-out

. These parameters define properties in the

MediationContext

.

When you save a subassembly, Workday Studio automatically adds a

local-out

transport that invokes it to the

Workspace Components

category on the

Palette

. This

local-out

transport uses the custom icon from the subassembly's

local-in

transport, if you supplied one. Otherwise it uses a question mark icon.

The

Palette

always displays public subassemblies. It displays private subassemblies only if they occur in the assembly. Studio provides several prepackaged subassemblies in the

Common Components

category on the

Palette

.

To locate the

local-in

transport that a

local-out

references, right-click the

local-out

and select

Declaration in Workspace

.

To locate the

local-out

transports that are referenced by a

local-in

, right-click the

local-in

and select

References in Workspace

.