org.tribuo.datasource

Class AggregateDataSource<T extends Output<T>>

java.lang.Object

org.tribuo.datasource.AggregateDataSource<T>

All Implemented Interfaces:

com.oracle.labs.mlrg.olcut.provenance.Provenancable<DataSourceProvenance>, Iterable<Example<T>>, DataSource<T>

public class AggregateDataSource<T extends Output<T>>
extends Object
implements DataSource<T>

Aggregates multiple DataSources, uses AggregateDataSource.IterationOrder to control the iteration order.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AggregateDataSource.AggregateDataSourceProvenance Provenance for the AggregateDataSource.
static class	AggregateDataSource.IterationOrder Specifies the iteration order of the inner sources.

Constructor Summary

Constructors

Constructor and Description
AggregateDataSource(List<DataSource<T>> sources) Creates an aggregate data source which will iterate the provided sources in the order of the list (i.e., using AggregateDataSource.IterationOrder.SEQUENTIAL.
AggregateDataSource(List<DataSource<T>> sources, AggregateDataSource.IterationOrder order) Creates an aggregate data source using the supplied sources and iteration order.

Method Summary

Modifier and Type	Method and Description
OutputFactory<T>	getOutputFactory() Returns the OutputFactory associated with this Output subclass.
DataSourceProvenance	getProvenance()
Iterator<Example<T>>	iterator()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

AggregateDataSource

public AggregateDataSource(List<DataSource<T>> sources)

Creates an aggregate data source which will iterate the provided sources in the order of the list (i.e., using AggregateDataSource.IterationOrder.SEQUENTIAL.

Parameters:

sources - The sources to aggregate.

AggregateDataSource

public AggregateDataSource(List<DataSource<T>> sources,
                           AggregateDataSource.IterationOrder order)

Creates an aggregate data source using the supplied sources and iteration order.

Parameters:

sources - The sources to iterate.

order - The iteration order.

Method Detail

toString

public String toString()

Overrides:

toString in class Object

getOutputFactory

public OutputFactory<T> getOutputFactory()

Description copied from interface: DataSource

Returns the OutputFactory associated with this Output subclass.

Specified by:

getOutputFactory in interface DataSource<T extends Output<T>>

Returns:

The output factory.

iterator

public Iterator<Example<T>> iterator()

Specified by:

iterator in interface Iterable<Example<T extends Output<T>>>

getProvenance

public DataSourceProvenance getProvenance()

Specified by:

getProvenance in interface com.oracle.labs.mlrg.olcut.provenance.Provenancable<DataSourceProvenance>