Uses of Class
org.apache.accumulo.core.iterators.Combiner
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Packages that use Combiner Package Description org.apache.accumulo.core.iterators org.apache.accumulo.core.iterators.user -
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Uses of Combiner in org.apache.accumulo.core.iterators
Subclasses of Combiner in org.apache.accumulo.core.iterators Modifier and Type Class Description class
LongCombiner
A TypedValueCombiner that translates each Value to a Long before reducing, then encodes the reduced Long back to a Value.class
TypedValueCombiner<V>
A Combiner that decodes each Value to type V before reducing, then encodes the result of typedReduce back to Value. -
Uses of Combiner in org.apache.accumulo.core.iterators.user
Subclasses of Combiner in org.apache.accumulo.core.iterators.user Modifier and Type Class Description class
BigDecimalCombiner
A family of combiners that treat values as BigDecimals, encoding and decoding using the built-in BigDecimal String input/output functions.static class
BigDecimalCombiner.BigDecimalMaxCombiner
static class
BigDecimalCombiner.BigDecimalMinCombiner
static class
BigDecimalCombiner.BigDecimalSummingCombiner
class
MaxCombiner
A Combiner that interprets Values as Longs and returns the largest Long among them.class
MinCombiner
A Combiner that interprets Values as Longs and returns the smallest Long among them.class
SummingArrayCombiner
A Combiner that interprets Values as arrays of Longs and returns an array of element-wise sums.class
SummingCombiner
A Combiner that interprets Values as Longs and returns their sum.
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