| Name | Type | Package | Detail |
| BaseAggregator | Class | trident.operation | Detail |
| ChainedAggregatorImpl | Class | operation.impl | Detail |
| CombinerAggregatorCombineImpl | Class | operation.impl | Detail |
| CountAsAggregator | Class | trident.testing | Detail |
| FirstN.FirstNAgg | Class | operation.builtin | Detail |
| FirstN.FirstNSortedAgg | Class | operation.builtin | Detail |
| GroupedAggregator | Class | operation.impl | Detail |
| ReducerAggregatorImpl | Class | operation.impl | Detail |
| SingleEmitAggregator | Class | operation.impl | Detail |
