org.rdfhdt.hdt.hdt.impl

Class HDTImpl

java.lang.Object

org.rdfhdt.hdt.hdt.impl.HDTImpl

All Implemented Interfaces:

Closeable, AutoCloseable, HDT, HDTPrivate, RDFAccess

public class HDTImpl
extends Object
implements HDTPrivate

Basic implementation of HDT interface

Field Summary

Fields

Modifier and Type	Field and Description
protected DictionaryPrivate	dictionary
protected HeaderPrivate	header
protected TriplesPrivate	triples

Constructor Summary

Constructors

Constructor and Description
HDTImpl(HDTOptions spec)

Method Summary

Modifier and Type	Method and Description
void	close()
String	getBaseURI()
Dictionary	getDictionary()
String	getHDTFileName()
Header	getHeader()
Triples	getTriples()
boolean	isClosed()
boolean	isMapped()
void	loadFromHDT(InputStream input, ProgressListener listener) Loads a HDT file
void	loadFromHDT(String hdtFileName, ProgressListener listener) Loads a HDT file
void	loadFromModifiableHDT(TempHDT modHdt, ProgressListener listener)
void	loadFromParts(HeaderPrivate h, DictionaryPrivate d, TriplesPrivate t)
void	loadOrCreateIndex(ProgressListener listener) Generates any additional index needed to solve all triple patterns more efficiently
void	mapFromHDT(File f, long offset, ProgressListener listener)
void	populateHeaderStructure(String baseUri)
void	saveToHDT(OutputStream output, ProgressListener listener)
void	saveToHDT(String fileName, ProgressListener listener)
IteratorTripleString	search(CharSequence subject, CharSequence predicate, CharSequence object)
protected void	setTriples(TriplesPrivate triples)
long	size()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

header

protected HeaderPrivate header

dictionary

protected DictionaryPrivate dictionary

triples

protected TriplesPrivate triples

Constructor Detail

HDTImpl

public HDTImpl(HDTOptions spec)

Parameters:

spec2 -

Method Detail

populateHeaderStructure

public void populateHeaderStructure(String baseUri)

Specified by:

populateHeaderStructure in interface HDTPrivate

loadFromHDT

public void loadFromHDT(InputStream input,
                        ProgressListener listener)
                 throws IOException

Description copied from interface: HDTPrivate

Loads a HDT file

Specified by:

loadFromHDT in interface HDTPrivate

Parameters:

input - InputStream to read from

Throws:

IOException

loadFromHDT

public void loadFromHDT(String hdtFileName,
                        ProgressListener listener)
                 throws IOException

Description copied from interface: HDTPrivate

Loads a HDT file

Specified by:

loadFromHDT in interface HDTPrivate

Throws:

IOException

mapFromHDT

public void mapFromHDT(File f,
                       long offset,
                       ProgressListener listener)
                throws IOException

Specified by:

mapFromHDT in interface HDTPrivate

Throws:

IOException

saveToHDT

public void saveToHDT(OutputStream output,
                      ProgressListener listener)
               throws IOException

Specified by:

saveToHDT in interface HDT

Throws:

IOException

saveToHDT

public void saveToHDT(String fileName,
                      ProgressListener listener)
               throws IOException

Specified by:

saveToHDT in interface HDT

Throws:

IOException

search

public IteratorTripleString search(CharSequence subject,
                                   CharSequence predicate,
                                   CharSequence object)
                            throws NotFoundException

Specified by:

search in interface RDFAccess

Throws:

NotFoundException

getHeader

public Header getHeader()

Specified by:

getHeader in interface HDT

getDictionary

public Dictionary getDictionary()

Specified by:

getDictionary in interface HDT

getTriples

public Triples getTriples()

Specified by:

getTriples in interface HDT

size

public long size()

Specified by:

size in interface HDT

loadFromParts

public void loadFromParts(HeaderPrivate h,
                          DictionaryPrivate d,
                          TriplesPrivate t)

loadFromModifiableHDT

public void loadFromModifiableHDT(TempHDT modHdt,
                                  ProgressListener listener)

loadOrCreateIndex

public void loadOrCreateIndex(ProgressListener listener)

Description copied from interface: HDTPrivate

Generates any additional index needed to solve all triple patterns more efficiently

Specified by:

loadOrCreateIndex in interface HDTPrivate

Parameters:

listener - A listener to be notified of the progress.

getBaseURI

public String getBaseURI()

Specified by:

getBaseURI in interface HDT

setTriples

protected void setTriples(TriplesPrivate triples)

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

getHDTFileName

public String getHDTFileName()

isClosed

public boolean isClosed()

isMapped

public boolean isMapped()