io.druid.query.topn

Class TopNMapFn

java.lang.Object

io.druid.query.topn.TopNMapFn

All Implemented Interfaces:

com.google.common.base.Function<Cursor,Result<TopNResultValue>>

public class TopNMapFn
extends Object
implements com.google.common.base.Function<Cursor,Result<TopNResultValue>>

Constructor Summary

Constructors

Constructor and Description
TopNMapFn(TopNQuery query, TopNAlgorithm topNAlgorithm)

Method Summary

Modifier and Type	Method and Description
Result<TopNResultValue>	apply(Cursor cursor)
static com.google.common.base.Function<Object,Object>	getValueTransformer(ValueType outputType)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.common.base.Function

equals

Constructor Detail

TopNMapFn

public TopNMapFn(TopNQuery query,
                 TopNAlgorithm topNAlgorithm)

Method Detail

getValueTransformer

public static com.google.common.base.Function<Object,Object> getValueTransformer(ValueType outputType)

apply

public Result<TopNResultValue> apply(Cursor cursor)

Specified by:

apply in interface com.google.common.base.Function<Cursor,Result<TopNResultValue>>