| Name | Type | Framework | Detail |
| Emitter | Interface | Apache Crunch | Detail |
| NoEmitMetricsContext | Class | Apache Hadoop | Detail |
| EmitInfo | Class | Apache Storm | Detail |
| NothingEmptyEmitStrategy | Class | Apache Storm | Detail |
| SingleEmitAggregator | Class | Apache Storm | Detail |
| TridentKafkaEmitter | Class | Apache Storm | Detail |
| NotificationEmitter | Interface | Java SE | Detail |
