Package de.xima.fc.gui.common.interfaces.request

Interface ICrossViewScopeRequestHandler<T extends Serializable,R extends ICrossViewScopeRequest<T>>

Type Parameters:
T - Type of the requested data.
R - Type of the request.
All Superinterfaces:
Serializable
public interface ICrossViewScopeRequestHandler<T extends Serializable,R extends ICrossViewScopeRequest<T>> extends Serializable
Handles a cross view scope request for a piece of data. Note that the handleRequest(ICrossViewScopeRequest) method is called within the scope of the request source, not within the scope of the request target. All state access should only be done by the supplier returned by that method, which is invoked within the request target scope, i.e. getViewPushContext().
Since:
7.0.0
Author:
XIMA MEDIA GmbH

  • Method Details

    • handleRequest

      ICrossViewScopeResponseSupplier<T> handleRequest(R request) throws Exception
      Handles a cross-scope request for a piece of data. Note that this handler is called within the scope of the request source, not within the scope of the request target. All state access should only be done by the supplier returned by this method, which is invoked within the request target scope, i.e. the scope corresponding to the getViewPushContext().
      Parameters:
      request - Request that was issued.
      Returns:
      The supplier that can create the response that should be returned. null when no response can or should not be provided.
      Throws:
      Exception - When the request could not be processed. Treated as if null had been returned.

    • getViewPushContext

      BackendViewPushContext getViewPushContext()
      Returns:
      The view scope within which the supplier returned by handleRequest(ICrossViewScopeRequest) will be invoked.