| Package | Description | 
|---|---|
| com.hazelcast.jet.accumulator | Classes intended to be used for accumulator objects in an  AggregateOperation. | 
| com.hazelcast.jet.aggregate | Contains  AggregateOperationand its several variants, as well
 as a builder object for the aggregate operations. | 
| Modifier and Type | Method and Description | 
|---|---|
| LongAccumulator | LongAccumulator. add(long value)Adds the supplied value to this accumulator, throwing an exception
 in the case of integer overflow. | 
| LongAccumulator | LongAccumulator. add(LongAccumulator that)Adds the value of the supplied accumulator to this accumulator, throwing
 an exception in the case of integer overflow. | 
| LongAccumulator | LongAccumulator. addAllowingOverflow(long value)Adds the supplied value to this accumulator, allowing integer overflow. | 
| LongAccumulator | LongAccumulator. addAllowingOverflow(LongAccumulator that)Adds the value of the supplied accumulator to this accumulator, allowing
 integer overflow. | 
| LongAccumulator | LongAccumulator. set(long value)Sets the value as given. | 
| LongAccumulator | LongAccumulator. subtract(long value)Subtracts the supplied value from this accumulator, throwing an
 exception in the case of integer overflow. | 
| LongAccumulator | LongAccumulator. subtract(LongAccumulator that)Subtracts the value of the supplied accumulator from this one,
 throwing an exception in the case of integer overflow. | 
| LongAccumulator | LongAccumulator. subtractAllowingOverflow(long value)Subtracts the supplied value from this accumulator, allowing integer
 overflow. | 
| LongAccumulator | LongAccumulator. subtractAllowingOverflow(LongAccumulator that)Subtracts the value of the supplied accumulator from this one, allowing
 integer overflow. | 
| Modifier and Type | Method and Description | 
|---|---|
| LongAccumulator | LongAccumulator. add(LongAccumulator that)Adds the value of the supplied accumulator to this accumulator, throwing
 an exception in the case of integer overflow. | 
| LongAccumulator | LongAccumulator. addAllowingOverflow(LongAccumulator that)Adds the value of the supplied accumulator to this accumulator, allowing
 integer overflow. | 
| LongAccumulator | LongAccumulator. subtract(LongAccumulator that)Subtracts the value of the supplied accumulator from this one,
 throwing an exception in the case of integer overflow. | 
| LongAccumulator | LongAccumulator. subtractAllowingOverflow(LongAccumulator that)Subtracts the value of the supplied accumulator from this one, allowing
 integer overflow. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <T> AggregateOperation1<T,LongAccumulator,Long> | AggregateOperations. counting()Returns an aggregate operation that counts the items it observes. | 
| static <T> AggregateOperation1<T,LongAccumulator,Long> | AggregateOperations. summingLong(ToLongFunctionEx<? super T> getLongValueFn)Returns an aggregate operation that computes the sum of the  longvalues it obtains by applyinggetLongValueFnto each item. | 
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