org.adroitlogic.ultraesb.api.transport

Interface PrefetchHandler<T>

public interface PrefetchHandler<T>

This interface provides the base for the custom fetch condition implementations, so that the polling transport listeners could call-out to the implementation of this interface registered for a certain proxy service to compute the conditional value of whether to fetch a given message or not.

This bean should be configured as a proxy service transport property for polling transport service level configurations using the property name, ultra.polling.prefetch_handler_bean if the handler is provided as a spring bean or ultra.polling.prefetch_handler_class if it can be initialized with reflection.

Since:

2.5.0

Author:

Ruwan

See Also:

PollingConstants.PREFETCH_HANDLER_BEAN, PollingConstants.PREFETCH_HANDLER_CLASS

Method Summary

Methods

Modifier and Type	Method and Description
boolean	shouldFetch(T context, String subject) Executes based on the provided context and provides the decision, whether to fetch the message or discard it

Method Detail

shouldFetch

boolean shouldFetch(T context,
                  String subject)

Executes based on the provided context and provides the decision, whether to fetch the message or discard it

Parameters:

context - the context of the execution usually comprises of the transport properties

subject - the main subject of the message being fetched, for example the filename or the email address etc..

Returns:

whether to process this file or not