Class StringColumnFloatAggregatorWrapper
- java.lang.Object
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- org.apache.druid.query.aggregation.DelegatingAggregator
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- org.apache.druid.query.aggregation.StringColumnFloatAggregatorWrapper
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,Aggregator
public class StringColumnFloatAggregatorWrapper extends DelegatingAggregator
This class can be used to wrap Float Aggregator that consume float type columns to handle String type.
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Field Summary
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Fields inherited from class org.apache.druid.query.aggregation.DelegatingAggregator
delegate
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Constructor Summary
Constructors Constructor Description StringColumnFloatAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseFloatColumnValueSelector,Aggregator> delegateBuilder, float nullValue)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
aggregate()
Performs aggregation.-
Methods inherited from class org.apache.druid.query.aggregation.DelegatingAggregator
close, get, getDouble, getFloat, getLong, isNull
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.druid.query.aggregation.Aggregator
aggregateWithSize
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Constructor Detail
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StringColumnFloatAggregatorWrapper
public StringColumnFloatAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseFloatColumnValueSelector,Aggregator> delegateBuilder, float nullValue)
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Method Detail
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aggregate
public void aggregate()
Description copied from interface:Aggregator
Performs aggregation.- Specified by:
aggregate
in interfaceAggregator
- Overrides:
aggregate
in classDelegatingAggregator
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