Package software.spool.publisher.api.strategy

Class PollingFeeder

java.lang.Object

software.spool.publisher.api.strategy.PollingFeeder

All Implemented Interfaces:

FeederStrategy

public class PollingFeeder
extends Object
implements FeederStrategy

Polling-based FeederStrategy that periodically reads inbox items with PUBLISHING status and processes them.

When started, this strategy creates a single-threaded scheduled executor that queries the inbox at a fixed interval (default: 30 seconds). Each matching inbox item is converted to an InboxItemStored event and delegated to the handler.

This strategy is best suited for batch-oriented or high-throughput scenarios where periodic polling is more efficient than event-driven processing.

Constructor Summary

Constructors

Constructor	Description
PollingFeeder(InboxReader reader, software.spool.core.control.Handler<software.spool.core.model.InboxItemStored> handler, Duration interval)	Creates a new polling feeder.

Method Summary

Modifier and Type	Method	Description
software.spool.core.port.Subscription	start()	Starts a scheduled executor that polls the inbox at the configured interval.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface software.spool.publisher.api.strategy.FeederStrategy

stop

Constructor Details

PollingFeeder

public PollingFeeder(InboxReader reader,
 software.spool.core.control.Handler<software.spool.core.model.InboxItemStored> handler,
 Duration interval)

Creates a new polling feeder.

Parameters:

reader - the inbox reader for querying items by status

handler - the handler that processes each inbox item

interval - the polling interval; defaults to 30 seconds if null

Method Details

start

public software.spool.core.port.Subscription start()

Starts a scheduled executor that polls the inbox at the configured interval.

Specified by:

start in interface FeederStrategy

Returns:

a Subscription whose cancel() shuts down the scheduler