org.linkeddatafragments.fragments

Interface ILinkedDataFragment

All Superinterfaces:

AutoCloseable, Closeable

All Known Subinterfaces:

ITriplePatternFragment

All Known Implementing Classes:

LinkedDataFragmentBase, TriplePatternFragmentBase, TriplePatternFragmentImpl

public interface ILinkedDataFragment
extends Closeable

Represents any possible Linked Data Fragment.

Author:

Olaf Hartig

Method Summary

Modifier and Type	Method and Description
org.apache.jena.rdf.model.StmtIterator	getControls() Returns an iterator over an RDF description of the controls associated with this fragment.
long	getMaxPageSize() Returns the maximum number of triples per page if getTriples() returns a page of data only (that is, if isPageOnly() returns true).
org.apache.jena.rdf.model.StmtIterator	getMetadata() Returns an iterator over the metadata of this fragment.
long	getPageNumber() Returns the number of the page of data returned by getTriples() if the data is paged (that is, if isPageOnly() returns true).
org.apache.jena.rdf.model.StmtIterator	getTriples() Returns an iterator over the RDF data of this fragment (possibly only partial if the data is paged, as indicated by isPageOnly()).
boolean	isLastPage() Returns true if getTriples() returns a page of data only and this is the last page of the fragment.
boolean	isPageOnly() Returns true if getTriples() returns a page of data only.

Methods inherited from interface java.io.Closeable

close

Method Detail

getTriples

org.apache.jena.rdf.model.StmtIterator getTriples()

Returns an iterator over the RDF data of this fragment (possibly only partial if the data is paged, as indicated by isPageOnly()).

Returns:

isPageOnly

boolean isPageOnly()

Returns true if getTriples() returns a page of data only. In this case, getPageNumber() can be used to obtain the corresponding page number.

Returns:

getPageNumber

long getPageNumber()
            throws UnsupportedOperationException

Returns the number of the page of data returned by getTriples() if the data is paged (that is, if isPageOnly() returns true). If the data is not paged, this method throws an exception.

Returns:

Throws:

UnsupportedOperationException - If the data of this fragment is not paged.

isLastPage

boolean isLastPage()
            throws UnsupportedOperationException

Returns true if getTriples() returns a page of data only and this is the last page of the fragment. If the data is not paged (i.e., if isPageOnly() returns false), this method throws an exception.

Returns:

Throws:

UnsupportedOperationException - If the data of this fragment is not paged.

getMaxPageSize

long getMaxPageSize()
             throws UnsupportedOperationException

Returns the maximum number of triples per page if getTriples() returns a page of data only (that is, if isPageOnly() returns true). If the data is not paged, this method throws an exception.

Returns:

Throws:

UnsupportedOperationException - If the data of this fragment is not paged.

getMetadata

org.apache.jena.rdf.model.StmtIterator getMetadata()

Returns an iterator over the metadata of this fragment.

Returns:

getControls

org.apache.jena.rdf.model.StmtIterator getControls()

Returns an iterator over an RDF description of the controls associated with this fragment.

Returns: