Human workflow services expose the following workflow services:

• Task service

• Task query service

• User metadata service

• Task evidence service

• Task metadata service

• Runtime config service

• Task report service

To use any of these services, you must use the abstract factory pattern for workflow services. The abstract factory pattern provides a way to encapsulate a group of individual factories that have a common theme.

Perform the following tasks:

• Get the IWorkflowServiceClient instance for the specific service type. The WorkflowServiceClientFactory provides a static factory method to get IWorkflowServiceClient according to the service type.

• Use the IWorkflowServiceClient instance to get the service instance to use.

The supported service types are Remote and Soap.

Remote clients use Enterprise JavaBeans clients (remote Enterprise JavaBeans, accordingly). SOAP uses SOAP clients. Each type of service requires you to configure workflow clients. The first code sample in Workflow Client Configuration File - wf_client_config.xml provides details.

The client configuration file can contain definitions for several configurations. Each server must have its own unique name. If the configuration file defines multiple servers, one server must be set with the default attribute equal to true. The workflowServicesClientConfiguration has an optional attribute named serverType that can be set to one of the following: LOCAL, REMOTE, or SOAP. Each server can override the client type by using the optional attribute clientType.

The second code sample in Workflow Client Configuration File - wf_client_config.xml provides details.

In the second example, server2 uses the default clientType of REMOTE, while server1 overrides the default clientType value to use the clientType of SOAP. The same rule applies if the JAXB WorkflowServicesClientConfigurationType object is used instead of the wf_client_config.xml file.

If the configuration defines a client type, you can use the factory method from the WorkflowServiceClientFactory class. See the code sample below:

public static IWorkflowServiceClient
 getWorkflowServiceClient(WorkflowServicesClientConfigurationType wscc, Logger
 logger) throws WorkflowException

If the map defines a client type with the property CONNECTION_PROPERTY.CLIENT_TYPE, the factory method in the code sample below can be used:

public static IWorkflowServiceClient getWorkflowServiceClient(Map<CONNECTION_
PROPERTY, String> properties, String serverName,    Logger logger) throws
 WorkflowException