net.engio.pips.data

Interface IDataProcessor<IN,OUT>

All Known Subinterfaces:

IAggregate<IN,OUT>, IDataCollector<IN>

All Known Implementing Classes:

Average, Counter, DataCollector, DataProcessor, DoubleToLong, ItemCounter, Max, Min, Sampler, SlidingAggregator, Synchronizer, ValueMapper

public interface IDataProcessor<IN,OUT>

A data processor produces outgoing data points from incoming data points using any kind of processing logic. Data processors can be connected to form implicit data processing pipelines where each data processor is fed with the outcome of its predecessor. Each processor can receive input from multiple processors as well as it may feed any number of subsequent processors. Thus, complex networks of processors can be formed to implement any data processing logic in a composite fashion. It is not specified how many outgoing data points are generated for each incoming data point. Data points may be duplicated, dropped, converted, delayed, stored, aggregated etc.

Author:

bennidi Date: 2/25/14

Field Summary

Fields

Modifier and Type	Field and Description
static IDataProcessor	Void A data processor that acts like /dev/null

Method Summary

Modifier and Type	Method and Description
IDataProcessor<IN,OUT>	add(IDataProcessor<OUT,?> destination) Connect another data processor to this data processor.
IDataProcessor<IN,OUT>	connectTo(IDataProcessor<OUT,?>... destination) Connect multiple other data processor to this data processor.
<V> IDataProcessor<OUT,V>	connectTo(IDataProcessor<OUT,V> destination) Connect another data processor to this data processor.
void	receive(DataPoint<IN> datapoint) Receive a new data point
void	receive(IN value) Convenience method to receive new values

Field Detail

Void

static final IDataProcessor Void

A data processor that acts like /dev/null

Method Detail

connectTo

<V> IDataProcessor<OUT,V> connectTo(IDataProcessor<OUT,V> destination)

Connect another data processor to this data processor. The newly connected processor will be added to the list of receivers and fed with outgoing data points from this processor.

Type Parameters:

V - - The type of value that the added processor outputs. Used to build pipelines of data processors in a type-safe manner

Parameters:

destination - - The data processor to be added to the list of receivers

Returns:

- The added data processor

connectTo

IDataProcessor<IN,OUT> connectTo(IDataProcessor<OUT,?>... destination)

Connect multiple other data processor to this data processor. The newly connected processor will be added to the list of receivers and fed with outgoing data points from this processor.

Parameters:

destination - - The data processors to be added to the list of receivers

Returns:

- This data processor

add

IDataProcessor<IN,OUT> add(IDataProcessor<OUT,?> destination)

Connect another data processor to this data processor. The newly connected processor will be added to the list of receivers and fed with outgoing data points from this processor.

Parameters:

destination - - The data processor to be added to the list of receivers

Returns:

This data processor

receive

void receive(DataPoint<IN> datapoint)

Receive a new data point

Parameters:

datapoint -

receive

void receive(IN value)

Convenience method to receive new values

Parameters:

value -