eu.stratosphere.core.testing

Class InputIterator<T>

java.lang.Object

eu.stratosphere.core.testing.InputIterator<T>

Type Parameters:

T - the record type

All Implemented Interfaces:

Closeable, AutoCloseable, Iterator<T>

public class InputIterator<T>
extends Object
implements Iterator<T>, Closeable

Provides an Iterator for InputFormats. If multiple formats are specified, it is assumed that they are homogeneous and most likely the result of a parallel execution of the previous Function.

Constructor Summary

Constructors

Constructor and Description
InputIterator(eu.stratosphere.api.common.typeutils.TypeSerializer<T> serializer, eu.stratosphere.api.common.io.InputFormat<T,?> inputFormat) Initializes InputIterator from already configured and opened InputFormat.
InputIterator(eu.stratosphere.api.common.typeutils.TypeSerializer<T> serializer, List<? extends eu.stratosphere.api.common.io.InputFormat<T,?>> inputFormats) Initializes InputIterator from already configured and opened InputFormats.

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
boolean	hasNext()
T	next()
void	remove() Not supported.

Methods inherited from class java.lang.Object

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

Constructor Detail

InputIterator

public InputIterator(eu.stratosphere.api.common.typeutils.TypeSerializer<T> serializer,
             eu.stratosphere.api.common.io.InputFormat<T,?> inputFormat)

Initializes InputIterator from already configured and opened InputFormat.

Parameters:

inputFormat - the inputFormat to wrap

InputIterator

public InputIterator(eu.stratosphere.api.common.typeutils.TypeSerializer<T> serializer,
             List<? extends eu.stratosphere.api.common.io.InputFormat<T,?>> inputFormats)

Initializes InputIterator from already configured and opened InputFormats.

Parameters:

inputFormats - the inputFormats to wrap

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

remove

public void remove()

Not supported.

Specified by:

remove in interface Iterator<T>