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| Interface Summary | |
| Consumer | Consumes the results of carrying out a particular work item. |
| Monitor | Observes the progress of a web crawl, noting when tasks start and finish. |
| Producer | |
| Task | A task to be carried out by a Worker |
| TaskFilter | |
| Worker | |
| WorkerFactory | |
| Class Summary | |
| Controller | A Controller is responsible for handing out a list of
work items to a number of Worker objects which it
created using a designated WorkerFactory. |
| DelegatingConsumerImpl |
Implementation of the Consumer interface that
supports delegating processing of work item results to
a List of Consumers. |
| DelegatingTaskFilterImpl | |
| FilteringController | A version of the Controller class that
applies one or more TaskFilters to Tasks
added by its Workers |
| MonitorImpl | Implementation of the Monitor interface. |
| ProducerWorkerImpl | |
| TaskFilterImpl | |
| WorkerFactoryImpl | |
| WorkerImpl | |
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