| Name | Description | Type | Package | Framework |
| TPSPThreadManager | This is a ThreadManager which provides a threadpool per Sink per EventPipeline. | Class | org.apache.excalibur.event.command | Apache Avalon |
| TPSPThreadManager .SourceDequeueInterceptor | This is used to plug into Queues so that we can intercept calls to the dequeue operation. | Class | org.apache.excalibur.event.command.TPSPThreadManager | Apache Avalon |
| TPSPThreadManager .SourceRunner | The SourceRunner is used to dequeue events one at a time. | Class | org.apache.excalibur.event.command.TPSPThreadManager | Apache Avalon |