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

Packages that use Option

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

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

Classes in org.apache.apex.malhar.stream.api that implement Option

Modifier and Type	Class and Description
static class	Option.AttributeSetting<T> An option used to set the Attribute
static class	Option.OpName An option used to set the name of the operator
static class	Option.PropSetting An option used to set the property value of the operator

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

Modifier and Type	Method and Description
static <T> Option	Option.Options.attr(com.datatorrent.api.Attribute<T> attr, T obj)
static Option	Option.Options.name(String name)
static Option	Option.Options.prop(String name, Object value)

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

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
<O,STREAM extends ApexStream<O>> STREAM	ApexStream.addOperator(com.datatorrent.api.Operator op, com.datatorrent.api.Operator.InputPort<T> inputPort, com.datatorrent.api.Operator.OutputPort<O> outputPort, Option... opts) Extend the dag by adding one operator
<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 ApexStream<O>> STREAM	ApexStream.endWith(com.datatorrent.api.Operator op, com.datatorrent.api.Operator.InputPort<T> inputPort, Option... opts) Extend the dag by adding one end operator
<STREAM extends ApexStream<T>> STREAM	ApexStream.filter(Function.FilterFunction<T> filter, Option... opts) Filter transformation Add an operator to the DAG which filter out tuple T that cannot satisfy the FilterFunction
<O,STREAM extends ApexStream<O>> STREAM	ApexStream.flatMap(Function.FlatMapFunction<T,O> flatten, Option... opts) Flat map transformation Add an operator to the DAG which convert tuple T to a collection of tuple O
<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
<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
<O,STREAM extends ApexStream<O>> STREAM	ApexStream.map(Function.MapFunction<T,O> mapFunction, Option... opts) Simple map transformation Add an operator to the DAG which convert tuple T to tuple O
<STREAM extends ApexStream<T>> STREAM	ApexStream.print(Option... opts) Add a stdout console output operator
<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<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

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

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

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)
DagMeta.NodeMeta	DagMeta.addNode(com.datatorrent.api.Operator operator, DagMeta.NodeMeta parent, com.datatorrent.api.Operator.OutputPort parentOutput, com.datatorrent.api.Operator.InputPort inputPort, Option... options)
<O,STREAM extends ApexStream<O>> STREAM	ApexStreamImpl.addOperator(com.datatorrent.api.Operator op, com.datatorrent.api.Operator.InputPort<T> inputPort, com.datatorrent.api.Operator.OutputPort<O> outputPort, 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 ApexStream<O>> STREAM	ApexStreamImpl.endWith(com.datatorrent.api.Operator op, com.datatorrent.api.Operator.InputPort<T> inputPort, Option... opts)
<STREAM extends ApexStream<T>> STREAM	ApexStreamImpl.filter(Function.FilterFunction<T> filter, Option... opts)
<O,STREAM extends ApexStream<O>> STREAM	ApexStreamImpl.flatMap(Function.FlatMapFunction<T,O> flatten, 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)
static ApexStream<String>	StreamFactory.fromFolder(String folderName, Option... opts) Create a stream of string tuples from reading files in hdfs folder line by line
static <T> ApexStream<T>	StreamFactory.fromInput(com.datatorrent.api.InputOperator operator, com.datatorrent.api.Operator.OutputPort<T> outputPort, Option... opts) Create a stream with any input operator
static ApexStream<String>	StreamFactory.fromKafka08(String zookeepers, String topic, Option... opts) Create a stream of string reading input from kafka 0.8
static ApexStream<byte[]>	StreamFactory.fromKafka09(String brokers, String topic, Option... opts) Create stream of byte array messages from kafka 0.9
static ApexStream<byte[]>	StreamFactory.fromKafka09(String brokers, String topic, PartitionStrategy strategy, int partitionNumber, Option... opts) Create stream of byte array messages from kafka 0.9 with more partition options
<O,K,STREAM extends WindowedStream<KeyValPair<K,Iterable<O>>>> STREAM	ApexWindowedStreamImpl.groupByKey(Function.ToKeyValue<T,K,O> convertToKeyVal, Option... opts)
<O,STREAM extends ApexStream<O>> STREAM	ApexStreamImpl.map(Function.MapFunction<T,O> mf, Option... opts)
ApexStreamImpl<T>	ApexStreamImpl.print(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<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)

Constructors in org.apache.apex.malhar.stream.api.impl with parameters of type Option

Constructor and Description
DagMeta.NodeMeta(com.datatorrent.api.Operator operator, Option... options)