Package com.complexible.common.rdf

Class StatementPropertiesSource

java.lang.Object

com.complexible.common.rdf.impl.AbstractStatementSource

com.complexible.common.rdf.StatementPropertiesSource

All Implemented Interfaces:

StatementSource, com.complexible.stardog.index.QuadSource, Closeable, AutoCloseable

public class StatementPropertiesSource
extends com.complexible.common.rdf.impl.AbstractStatementSource
implements com.complexible.stardog.index.QuadSource

Represents edge-properties of all statements in the original StatementSource

Since:

7.1

Author:

Pavel Klinov

Field Summary

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

NO_ESTIMATE

Constructor Summary

Constructors

Constructor	Description
StatementPropertiesSource(StatementSource theSource, com.complexible.stardog.index.IndexConnection theIdxConnection, CancelCheck theCheck)

Method Summary

Modifier and Type	Method	Description
long	estimatedCount()	Returns the estimated count of statements in this source or NO_ESTIMATE if the estimate is not known.
boolean	isReusable()	Returns true if this source can be iterated multiple times with identical results.
CloseableIterator<com.complexible.stardog.index.Quad>	iterator()
StatementIterator	statements()	Return an iterator over the statements contained by this source.

Methods inherited from class com.complexible.common.rdf.impl.AbstractStatementSource

close, getContext, 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

StatementPropertiesSource

public StatementPropertiesSource(StatementSource theSource,
 com.complexible.stardog.index.IndexConnection theIdxConnection,
 CancelCheck theCheck)

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.

iterator

public CloseableIterator<com.complexible.stardog.index.Quad> iterator()

Specified by:

iterator in interface com.complexible.stardog.index.QuadSource

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

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 com.complexible.stardog.index.QuadSource

Specified by:

isReusable in interface StatementSource

Returns:

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