Uses of Interface
org.apache.apex.malhar.stream.api.WindowedStream

Packages that use WindowedStream

Package	Description
org.apache.apex.malhar.stream.api
org.apache.apex.malhar.stream.api.impl

Uses of WindowedStream in org.apache.apex.malhar.stream.api

Methods in org.apache.apex.malhar.stream.api with type parameters of type WindowedStream

Modifier and Type	Method and Description
<O,ACCU,STREAM extends WindowedStream<Tuple.WindowedTuple<O>>> STREAM	WindowedStream.accumulate(Accumulation<T,ACCU,O> accumulation, Option... opts) Add WindowedOperatorImpl with specified Accumulation Accumulate tuples by some key within the window definition in this stream Also give a name to the accumulation
<K,V,O,ACCU,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,O>>>> STREAM	WindowedStream.accumulateByKey(Accumulation<V,ACCU,O> accumulation, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts) Add KeyedWindowedOperatorImpl with specified Accumulation Accumulate tuples by some key within the window definition in this stream Also give a name to the accumulation
<STREAM extends WindowedStream<Tuple.WindowedTuple<Long>>> STREAM	WindowedStream.count(Option... opts) Count of all tuples
<K,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,Long>>>> STREAM	WindowedStream.countByKey(Function.ToKeyValue<T,K,Long> convertToKeyValue, Option... opts) Count tuples by the key
<O,STREAM extends WindowedStream<Tuple.WindowedTuple<O>>> STREAM	WindowedStream.fold(FoldFn<T,O> fold, Option... opts) Add WindowedOperatorImpl with specified FoldFn Fold transformation
<K,V,O,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,O>>>> STREAM	WindowedStream.foldByKey(FoldFn<V,O> fold, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts) Add KeyedWindowedOperatorImpl with specified FoldFn Fold transformation by key
<STREAM extends WindowedStream<Iterable<T>>> STREAM	WindowedStream.group() Return tuples for each window
<O,K,STREAM extends WindowedStream<KeyValPair<K,Iterable<O>>>> STREAM	WindowedStream.groupByKey(Function.ToKeyValue<T,K,O> convertToKeyVal, Option... opts) Return tuples for each key for each window
<STREAM extends WindowedStream<Tuple.WindowedTuple<T>>> STREAM	WindowedStream.reduce(ReduceFn<T> reduce, Option... opts) Add WindowedOperatorImpl with specified ReduceFn Do reduce transformation
<K,V,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,V>>>> STREAM	WindowedStream.reduceByKey(ReduceFn<V> reduce, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts) Add KeyedWindowedOperatorImpl with specified ReduceFn Reduce transformation by selected key Add an operator to the DAG which merge tuple t1, t2 to new tuple by key
<STREAM extends WindowedStream<T>> STREAM	WindowedStream.resetAllowedLateness(org.joda.time.Duration allowedLateness) Reset the allowedLateness settings for next transforms
<STREAM extends WindowedStream<T>> STREAM	WindowedStream.resetTrigger(TriggerOption triggerOption) Reset the trigger settings for next transforms
<STREAM extends WindowedStream<Tuple.WindowedTuple<List<T>>>> STREAM	WindowedStream.top(int N, Option... opts) Return top N tuples of all tuples in the window
<K,V,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,List<V>>>>> STREAM	WindowedStream.topByKey(int N, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts) Return top N tuples by the selected key

Methods in org.apache.apex.malhar.stream.api that return WindowedStream

Modifier and Type	Method and Description
WindowedStream<T>	ApexStream.window(WindowOption windowOption) Chunk tuples into Windows Window Transform are defined in WindowedStream
WindowedStream<T>	ApexStream.window(WindowOption windowOption, TriggerOption triggerOption) Chunk tuple into windows with window option and trigger option
WindowedStream<T>	ApexStream.window(WindowOption windowOption, TriggerOption triggerOption, org.joda.time.Duration allowLateness) Chunk tuple into windows with window option and trigger option and allowed lateness

Uses of WindowedStream in org.apache.apex.malhar.stream.api.impl

Classes in org.apache.apex.malhar.stream.api.impl that implement WindowedStream

Modifier and Type	Class and Description
class	ApexWindowedStreamImpl<T> Default windowed stream implementation for WindowedStream interface.

Methods in org.apache.apex.malhar.stream.api.impl with type parameters of type WindowedStream

Modifier and Type	Method and Description
<O,ACCU,STREAM extends WindowedStream<Tuple.WindowedTuple<O>>> STREAM	ApexWindowedStreamImpl.accumulate(Accumulation<T,ACCU,O> accumulation, Option... opts)
<K,V,O,ACCU,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,O>>>> STREAM	ApexWindowedStreamImpl.accumulateByKey(Accumulation<V,ACCU,O> accumulation, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts)
<STREAM extends WindowedStream<Tuple.WindowedTuple<Long>>> STREAM	ApexWindowedStreamImpl.count(Option... opts)
<K,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,Long>>>> STREAM	ApexWindowedStreamImpl.countByKey(Function.ToKeyValue<T,K,Long> convertToKeyValue, Option... opts)
<O,STREAM extends WindowedStream<Tuple.WindowedTuple<O>>> STREAM	ApexWindowedStreamImpl.fold(FoldFn<T,O> fold, Option... opts)
<K,V,O,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,O>>>> STREAM	ApexWindowedStreamImpl.foldByKey(FoldFn<V,O> fold, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts)
<STREAM extends WindowedStream<Iterable<T>>> STREAM	ApexWindowedStreamImpl.group()
<O,K,STREAM extends WindowedStream<KeyValPair<K,Iterable<O>>>> STREAM	ApexWindowedStreamImpl.groupByKey(Function.ToKeyValue<T,K,O> convertToKeyVal, Option... opts)
<STREAM extends WindowedStream<Tuple.WindowedTuple<T>>> STREAM	ApexWindowedStreamImpl.reduce(ReduceFn<T> reduce, Option... opts)
<K,V,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,V>>>> STREAM	ApexWindowedStreamImpl.reduceByKey(ReduceFn<V> reduce, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts)
<STREAM extends WindowedStream<T>> STREAM	ApexWindowedStreamImpl.resetAllowedLateness(org.joda.time.Duration allowedLateness)
<STREAM extends WindowedStream<T>> STREAM	ApexWindowedStreamImpl.resetTrigger(TriggerOption option)
<STREAM extends WindowedStream<Tuple.WindowedTuple<List<T>>>> STREAM	ApexWindowedStreamImpl.top(int N, Option... opts)
<K,V,STREAM extends WindowedStream<Tuple.WindowedTuple<KeyValPair<K,List<V>>>>> STREAM	ApexWindowedStreamImpl.topByKey(int N, Function.ToKeyValue<T,K,V> convertToKeyVal, Option... opts)

Methods in org.apache.apex.malhar.stream.api.impl that return WindowedStream

Modifier and Type	Method and Description
WindowedStream<T>	ApexStreamImpl.window(WindowOption option)
WindowedStream<T>	ApexStreamImpl.window(WindowOption windowOption, TriggerOption triggerOption)
WindowedStream<T>	ApexStreamImpl.window(WindowOption windowOption, TriggerOption triggerOption, org.joda.time.Duration allowLateness)