Workflow queues

Workflow queues hold work items that are waiting to be processed.

You can manage the following types of queues:

User queues

When you initialize an isolated region, two user queues, Inbox and Tracker, are created for that isolated region. Inbox is the queue that holds work items that are waiting to be processed by an individual user. You cannot create more inboxes. Tracker is the queue for tracker items that are assigned to a specific user. You can modify user queue properties, such as creating indexes and assigning user access to the queue.

Work queues

A work queue holds work items that can be completed by more than one user or can be completed by an automated process. In a workflow definition, the workflow author can assign steps to a specific work queue.

Component queues

Component queues make it possible to process a workflow step by using an external entity, such as a Java™ or Java messaging system (JMS) component. You configure a component queue with an adapter, either Java or JMS. Use the Java adapter to expose public methods from a Java class as operations on a queue. Use the JMS adapter to publish workflow data to a JMS queue by using operations.