WORKING WITH LINKS

• Use links to connect each workflow task.
• We can specify conditions with links to create branches in the workflow.
• The Workflow Manager does not allow us to use links to create loops in the workflow. Each link in the workflow can run only once.

Valid Workflow :

Example of loop:

Specifying Link Conditions:

• Once we create links between tasks, we can specify conditions for each link to determine the order of execution in the workflow.
• If we do not specify conditions for each link, the Integration Service runs the next task in the workflow by default.
• Use predefined or user-defined workflow variables in the link condition.

Steps:

1. In the Workflow Designer workspace, double-click the link you want to specify.
2. The Expression Editor appears.
3. In the Expression Editor, enter the link condition. The Expression Editor provides predefined workflow variables, user-defined workflow variables, variable functions, and Boolean and arithmetic operators.
4. Validate the expression using the Validate button.

Using the Expression Editor:

The Workflow Manager provides an Expression Editor for any expressions in the workflow. We can enter expressions using the Expression Editor for the following:

• Link conditions
• Decision task
• Assignment task