public class DistinctAggregator<T> extends SpaceEntriesAggregator<DistinctResult> implements Externalizable
Constructor and Description |
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DistinctAggregator() |
Modifier and Type | Method and Description |
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void |
aggregate(SpaceEntriesAggregatorContext context) |
void |
aggregateIntermediateResult(DistinctResult partitionResult) |
DistinctAggregator |
distinct(Integer limit,
String... paths) |
DistinctAggregator |
distinct(String... paths) |
String |
getDefaultAlias() |
Collection<T> |
getFinalResult() |
DistinctResult |
getIntermediateResult() |
void |
readExternal(ObjectInput in) |
void |
writeExternal(ObjectOutput out) |
as, clone, getAlias, setRawEntryConverter, toObject
public DistinctAggregator distinct(String... paths)
public DistinctAggregator distinct(Integer limit, String... paths)
public String getDefaultAlias()
getDefaultAlias
in class SpaceEntriesAggregator<DistinctResult>
public void aggregate(SpaceEntriesAggregatorContext context)
aggregate
in class SpaceEntriesAggregator<DistinctResult>
public void aggregateIntermediateResult(DistinctResult partitionResult)
aggregateIntermediateResult
in class SpaceEntriesAggregator<DistinctResult>
public DistinctResult getIntermediateResult()
getIntermediateResult
in class SpaceEntriesAggregator<DistinctResult>
public Collection<T> getFinalResult()
getFinalResult
in class SpaceEntriesAggregator<DistinctResult>
public void writeExternal(ObjectOutput out) throws IOException
writeExternal
in interface Externalizable
IOException
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
readExternal
in interface Externalizable
IOException
ClassNotFoundException
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