Package org.eclipse.rdf4j.sail.lmdb.model

Class LmdbLiteral

java.lang.Object

org.eclipse.rdf4j.model.base.AbstractLiteral

org.eclipse.rdf4j.sail.lmdb.model.LmdbLiteral

All Implemented Interfaces:

Serializable, Literal, Value, LmdbValue

public class LmdbLiteral
extends AbstractLiteral
implements LmdbValue

See Also:

• Serialized Form

Field Summary

Fields inherited from interface org.eclipse.rdf4j.sail.lmdb.model.LmdbValue

UNKNOWN_ID

Constructor Summary

Constructors

Constructor	Description
LmdbLiteral(ValueStoreRevision revision, long internalID)
LmdbLiteral(ValueStoreRevision revision, String label, long internalID)
LmdbLiteral(ValueStoreRevision revision, String label, String lang)
LmdbLiteral(ValueStoreRevision revision, String label, String lang, long internalID)
LmdbLiteral(ValueStoreRevision revision, String label, CoreDatatype datatype)
LmdbLiteral(ValueStoreRevision revision, String label, CoreDatatype coreDatatype, long internalID)
LmdbLiteral(ValueStoreRevision revision, String label, IRI datatype)
LmdbLiteral(ValueStoreRevision revision, String label, IRI datatype, long internalID)
LmdbLiteral(ValueStoreRevision revision, String label, IRI datatype, CoreDatatype coreDatatype)
LmdbLiteral(ValueStoreRevision revision, String label, IRI datatype, CoreDatatype coreDatatype, long internalID)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	Compares this literal to another object.
CoreDatatype	getCoreDatatype()	CoreDatatype is an interface for natively supported datatypes in RDF4J.
IRI	getDatatype()	Gets the datatype for this literal.
long	getInternalID()	Gets the ID that is used in the lmdb store for this Value.
String	getLabel()	Gets the label (the lexical value) of this literal.
Optional<String>	getLanguage()	Gets the language tag for this literal, normalized to lower case.
ValueStoreRevision	getValueStoreRevision()	Gets the revision of the value store that created this value.
int	hashCode()	Computes the hash code of this literal.
void	init()	Initializes this value if it was a lazy value (ID-only value) before.
void	setDatatype(CoreDatatype coreDatatype)
void	setDatatype(IRI datatype)
void	setInternalID(long internalID, ValueStoreRevision revision)	Sets the ID that is used for this value in a specific revision of the value store.
void	setLabel(String label)
void	setLanguage(String language)
String	toString()
protected Object	writeReplace()

Methods inherited from class org.eclipse.rdf4j.model.base.AbstractLiteral

booleanValue, byteValue, calendarValue, decimalValue, doubleValue, floatValue, integerValue, intValue, longValue, shortValue, stringValue, temporalAccessorValue, temporalAmountValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.rdf4j.model.Literal

isLiteral

Methods inherited from interface org.eclipse.rdf4j.model.Value

isBNode, isIRI, isResource, isTriple, stringValue

Constructor Details

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 long internalID)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 long internalID)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 String lang)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 String lang,
 long internalID)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 IRI datatype)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 IRI datatype,
 CoreDatatype coreDatatype)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 CoreDatatype datatype)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 IRI datatype,
 long internalID)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 IRI datatype,
 CoreDatatype coreDatatype,
 long internalID)

LmdbLiteral

public LmdbLiteral(ValueStoreRevision revision,
 String label,
 CoreDatatype coreDatatype,
 long internalID)

Method Details

setInternalID

public void setInternalID(long internalID,
 ValueStoreRevision revision)

Description copied from interface: LmdbValue

Sets the ID that is used for this value in a specific revision of the value store.

Specified by:

setInternalID in interface LmdbValue

getValueStoreRevision

public ValueStoreRevision getValueStoreRevision()

Description copied from interface: LmdbValue

Gets the revision of the value store that created this value. The value's internal ID is only valid when it's value store revision is equal to the value store's current revision.

Specified by:

getValueStoreRevision in interface LmdbValue

Returns:

The revision of the value store that created this value at the time it last set the value's internal ID.

getInternalID

public long getInternalID()

Description copied from interface: LmdbValue

Gets the ID that is used in the lmdb store for this Value.

Specified by:

getInternalID in interface LmdbValue

Returns:

The value's ID, or LmdbValue.UNKNOWN_ID if not yet set.

getDatatype

public IRI getDatatype()

Description copied from interface: Literal

Gets the datatype for this literal.

If Literal.getLanguage() returns a non-empty value than this must return rdf:langString. If no datatype was assigned to this literal by the creator, then this method must return xsd:string.

Specified by:

getDatatype in interface Literal

Returns:

The datatype for this literal.

getCoreDatatype

public CoreDatatype getCoreDatatype()

Description copied from interface: Literal

CoreDatatype is an interface for natively supported datatypes in RDF4J. This includes, among others, the XML Schema datatypes and rdf:langString. CoreDatatypes are implemented as enums and more performant and convenient to work with than IRI-based datatypes. The constant

invalid @link

{@link CoreDatatype#NONE)

} is used to represent a datatype that is not one of the supported core datatypes.

Specified by:

getCoreDatatype in interface Literal

Returns:

The CoreDatatype or

invalid @link

{@link CoreDatatype#NONE)

} if the datatype matches none of the core datatypes. This method will not return null.

setDatatype

public void setDatatype(IRI datatype)

setDatatype

public void setDatatype(CoreDatatype coreDatatype)

getLabel

public String getLabel()

Description copied from interface: Literal

Gets the label (the lexical value) of this literal.

Specified by:

getLabel in interface Literal

Returns:

The literal's label.

setLabel

public void setLabel(String label)

getLanguage

public Optional<String> getLanguage()

Description copied from interface: Literal

Gets the language tag for this literal, normalized to lower case.

Specified by:

getLanguage in interface Literal

Returns:

The language tag for this literal, or Optional.empty() if it doesn't have one.

setLanguage

public void setLanguage(String language)

init

public void init()

Description copied from interface: LmdbValue

Initializes this value if it was a lazy value (ID-only value) before.

Specified by:

init in interface LmdbValue

equals

public boolean equals(Object o)

Description copied from interface: Literal

Compares this literal to another object.

Specified by:

equals in interface Literal

Overrides:

equals in class AbstractLiteral

Parameters:

o - the object to compare this literal to

Returns:

true, if the other object is an instance of Literal and if their labels, language tags and datatypes are equal

hashCode

public int hashCode()

Description copied from interface: Literal

Computes the hash code of this literal.

Specified by:

hashCode in interface Literal

Overrides:

hashCode in class AbstractLiteral

Returns:

a hash code for this literal computed as Literal.getLabel().hashCode()

toString

public String toString()

Overrides:

toString in class AbstractLiteral

writeReplace

protected Object writeReplace()
                       throws ObjectStreamException

Throws:

ObjectStreamException