com.bigdata.rdf.internal.encoder

Class SolutionSetStreamDecoder

java.lang.Object

com.bigdata.rdf.internal.encoder.SolutionSetStreamDecoder

All Implemented Interfaces:

ICloseable, ICloseableIterator<IBindingSet[]>, Iterator<IBindingSet[]>

public class SolutionSetStreamDecoder
extends Object
implements ICloseableIterator<IBindingSet[]>

Stream decoder for solution sets (chunk oriented).

Author:

Bryan Thompson

See Also:

SolutionSetStreamEncoder

Constructor Summary

Constructors

Constructor and Description
SolutionSetStreamDecoder(String name, DataInputStream in, long solutionSetCount)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Closes the iterator, releasing any associated resources.
boolean	hasNext()
IBindingSet[]	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

SolutionSetStreamDecoder

public SolutionSetStreamDecoder(String name,
                        DataInputStream in,
                        long solutionSetCount)

Parameters:

name - The name of the solution set.

in - The solutions are read from this stream.

solutionSetCount - The #of solutions to be read from the stream.

Throws:

IOException

Method Detail

close

public void close()

Description copied from interface: ICloseableIterator

Closes the iterator, releasing any associated resources. This method MAY be invoked safely if the iterator is already closed. Implementations of this interface MUST invoke ICloseableIterator.close() if Iterator.hasNext() method returns false to ensure that the iterator is closed (and its resources release) as soon as it is exhausted.

Note: Implementations that support Iterator.remove() MUST NOT eagerly close the iterator when it is exhausted since that would make it impossible to remove the last visited statement. Instead they MUST wait for an explicit ICloseableIterator.close() by the application.

Specified by:

close in interface ICloseable

Specified by:

close in interface ICloseableIterator<IBindingSet[]>

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<IBindingSet[]>

next

public IBindingSet[] next()

Specified by:

next in interface Iterator<IBindingSet[]>

remove

public void remove()

Specified by:

remove in interface Iterator<IBindingSet[]>