| Name | Type | Package | Detail |
| Accumulator | Interface | flink.api.common.accumulators | Detail |
| AccumulatorEvent | Class | flink.runtime.accumulators | Detail |
| AccumulatorHelper | Class | flink.api.common.accumulators | Detail |
| AccumulatorManager | Class | flink.runtime.jobmanager.accumulators | Detail |
| EmptyFieldsCountAccumulator | Class | flink.examples.java.relational | Detail |
| JobAccumulators | Class | flink.runtime.jobmanager.accumulators | Detail |
| SimpleAccumulator | Interface | flink.api.common.accumulators | Detail |
