Follow these procedures to implement your own dynamic assignment pattern.

To implement dynamic assignment patterns:

Write a Java class that implements the following interface:

oracle.bpel.services.workflow.assignment.dynamic.IDynamicAssignmentPattern

Implementations must provide support for selecting a single assignee from a list of participants (all of the same type) by implementing the method getAssigneeFromParticipantList.

An implementation does not have to support all assignee types. The interface provides the method getSupportedAssigneeType to enable the implementation to specify which types of assignee it supports.

Implementations can accept input parameters to specify selection criteria, the Dynamic Assignment Framework validates these input parameters, and the implementation can define its parameters (if any) in the method getPatternParameters().

An implementation can also accept initialization parameters, which are set when the implementation is initialized by the framework. The parameter values are defined in the human workflow configuration (either using configMBean, or by Human Workflow Service Engine configuration in Oracle Enterprise Manager Fusion Middleware Control), where the dynamic assignment pattern is registered.

For convenience, the framework provides the class AbstractDynamicAssignmentPattern which implements some common functionality. Assignment pattern implementations can extend this abstract class, to save implementing some parameter and localization support.

Before 11g (11.1.1.6.0), custom dynamic assignment patterns were implemented using one or both of the following interfaces:

oracle.bpel.services.workflow.assignment.dynamic.IDynamicGroupAssignmentFunction
oracle.bpel.services.workflow.assignment.dynamic.IDynamicUserAssignmentFunction

These interfaces do not offer all the features available in the IDynamicAssingmentPattern interface, and have been deprecated. The Dynamic Assignment Framework remains backward compatible with implementations that use the old interface, but Oracle recommends that you migrate any implementations you have to use the new interface.

For information about the Javadoc for dynamic assignment interfaces and utilities, see Oracle Fusion Middleware Workflow Services Java API Reference for Oracle BPEL Process Manager.