org.ws4d.java.service
Interface InvokeDelegate

public interface InvokeDelegate

Instances of this interface can be used within an OperationStub to implement the actual business logic of a service's operation.

Method Summary

ParameterValue

invoke(Operation operation, ParameterValue arguments) Executes the business logic associated with the given operation.

Method Detail

invoke

ParameterValue invoke(Operation operation,
                      ParameterValue arguments)
                      throws InvocationException

Executes the business logic associated with the given operation. The values of any available input parameters can be obtained from the supplied arguments. The returned value corresponds to the result of the operation. In case any predefined faults arise during the execution of the business logic, an InvocationException should be thrown.

Parameters:

operation - the operation invoked

arguments - input arguments

Returns:

output/result of the invocation

Throws:

InvocationException - denotes failures occurring during the execution of the business logic