io.druid.java.util.common.guava

Class MappedSequence<T,Out>

java.lang.Object

io.druid.java.util.common.guava.MappedSequence<T,Out>

All Implemented Interfaces:

Sequence<Out>

public class MappedSequence<T,Out>
extends Object
implements Sequence<Out>

Constructor Summary

Constructors

Constructor and Description
MappedSequence(Sequence<T> baseSequence, com.google.common.base.Function<T,Out> fn)

Method Summary

Modifier and Type	Method and Description
<OutType> OutType	accumulate(OutType initValue, Accumulator<OutType,Out> accumulator) Accumulate this sequence using the given accumulator.
<OutType> Yielder<OutType>	toYielder(OutType initValue, YieldingAccumulator<OutType,Out> accumulator) Return an Yielder for accumulated sequence.

Methods inherited from class java.lang.Object

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

Constructor Detail

MappedSequence

public MappedSequence(Sequence<T> baseSequence,
                      com.google.common.base.Function<T,Out> fn)

Method Detail

accumulate

public <OutType> OutType accumulate(OutType initValue,
                                    Accumulator<OutType,Out> accumulator)

Description copied from interface: Sequence

Accumulate this sequence using the given accumulator.

Specified by:

accumulate in interface Sequence<Out>

Type Parameters:

OutType - the type of accumulated value.

Parameters:

initValue - the initial value to pass along to start the accumulation.

accumulator - the accumulator which is responsible for accumulating input values.

Returns:

accumulated value.

toYielder

public <OutType> Yielder<OutType> toYielder(OutType initValue,
                                            YieldingAccumulator<OutType,Out> accumulator)

Description copied from interface: Sequence

Return an Yielder for accumulated sequence.

Specified by:

toYielder in interface Sequence<Out>

Type Parameters:

OutType - the type of accumulated value.

Parameters:

initValue - the initial value to pass along to start the accumulation.

accumulator - the accumulator which is responsible for accumulating input values.

Returns:

an Yielder for accumulated sequence.

See Also:

Yielder