Package com.complexible.common.rdf

Class StatementSources.RDFStreamStatementSource

java.lang.Object

com.complexible.common.rdf.StatementSources.RDFStreamStatementSource

All Implemented Interfaces:

StatementSource, Closeable, AutoCloseable

Enclosing class:

StatementSources

public static class StatementSources.RDFStreamStatementSource
extends Object
implements StatementSource

Field Summary

Fields inherited from interface com.complexible.common.rdf.StatementSource

NO_ESTIMATE

Constructor Summary

Constructors

Constructor	Description
RDFStreamStatementSource(RDFStream rdfStream)
RDFStreamStatementSource(List<RDFStream> rdfStreams, Closeable closeable, boolean reusable)

Method Summary

Modifier and Type	Method	Description
void	close()
long	estimatedCount()	Returns the estimated count of statements in this source or NO_ESTIMATE if the estimate is not known.
Resource	getContext()	Return the context these statements belong to.
boolean	isReusable()	Returns true if this source can be iterated multiple times with identical results.
StatementIterator	statements()	Return an iterator over the statements contained by this source.
List<RDFStream>	streams()	Converts the statement source into one or more streams.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.complexible.common.rdf.StatementSource

containsVirtual, inMemory

Constructor Details

RDFStreamStatementSource

public RDFStreamStatementSource(RDFStream rdfStream)

RDFStreamStatementSource

public RDFStreamStatementSource(List<RDFStream> rdfStreams,
 Closeable closeable,
 boolean reusable)

Method Details

statements

public StatementIterator statements()

Description copied from interface: StatementSource

Return an iterator over the statements contained by this source.

Specified by:

statements in interface StatementSource

Returns:

an iteration over the statements.

getContext

public Resource getContext()

Description copied from interface: StatementSource

Return the context these statements belong to. When non-null, this should override the context specified on the statements themselves.

Specified by:

getContext in interface StatementSource

Returns:

the context of all the statements from this source, or `null` if there is no context (for all of them) or they each have their own context specified.

streams

public List<RDFStream> streams()

Description copied from interface: StatementSource

Converts the statement source into one or more streams.

Specified by:

streams in interface StatementSource

isReusable

public boolean isReusable()

Description copied from interface: StatementSource

Returns true if this source can be iterated multiple times with identical results. Sources backed by one-shot iterators or input streams are not reusable.

Specified by:

isReusable in interface StatementSource

Returns:

true if StatementSource.statements() and StatementSource.streams() can be called multiple times

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

estimatedCount

public long estimatedCount()

Description copied from interface: StatementSource

Returns the estimated count of statements in this source or NO_ESTIMATE if the estimate is not known.

Specified by:

estimatedCount in interface StatementSource