I cannot find the method in this interface!

Question

Is service an interface and query its method in the following scrips? But I cannot find the method query in this interface. What is the function of new?
Map map = service.query(new FreeMemAgent(), null);
Thank you
Edited by: jetq on Jun 7, 2009 9:05 PM

Answer 1

Hi Frank,
service is a reference variable and refers to an instance of a class that implements the query() method that returns a reference to an instance of a class that implements the Map interface. If service happens to refer to an instance of a class that implements the InvocationService interface, you can find the Coherence 3.4.2 documentation of the method at InvocationService. The new keyword is a Java operator that creates an object. Continuing with the assumption that service refers to an instance of a class that implements the InvocationService interface, the FreeMemAgent class must implement the Invocable interface. A reference to a "new" FreeMemAgent object is being passed to the query() method.
Regards,
Harv