Class LmdbTripleTerm

java.lang.Object

org.eclipse.rdf4j.model.base.AbstractTripleTerm

org.eclipse.rdf4j.sail.lmdb.model.LmdbTripleTerm

All Implemented Interfaces:

Serializable, TripleTerm, Value, LmdbValue

public class LmdbTripleTerm
extends AbstractTripleTerm
implements LmdbValue

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface Value

Value.Type

Field Summary

Fields inherited from interface LmdbValue

UNKNOWN_ID

Constructor Summary

Constructors

Constructor	Description
LmdbTripleTerm(ValueStoreRevision revision, long internalID)
LmdbTripleTerm(ValueStoreRevision revision, Resource subject, IRI predicate, Value object)
LmdbTripleTerm(ValueStoreRevision revision, Resource subject, IRI predicate, Value object, long internalID)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	Compares this triple to another object.
long	getInternalID()	Gets the ID that is used in the lmdb store for this Value.
Value	getObject()	Gets the object of this triple.
IRI	getPredicate()	Gets the predicate of this triple.
Resource	getSubject()	Gets the subject of this triple.
ValueStoreRevision	getValueStoreRevision()	Gets the revision of the value store that created this value.
int	hashCode()	Computes the hash code of this triple.
void	init()	Initializes this value if it was a lazy value (ID-only value) before.
void	setFromInitializedValue(LmdbValue initializedValue)	Sets this value's data from an initialized value.
void	setInternalID(long id, ValueStoreRevision revision)	Sets the ID that is used for this value in a specific revision of the value store.
protected Object	writeReplace()

Methods inherited from class AbstractTripleTerm

stringValue, toString

Methods inherited from class Object

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

Methods inherited from interface TripleTerm

getType, isTripleTerm

Methods inherited from interface Value

isBNode, isIRI, isLiteral, isResource, stringValue

Constructor Details

LmdbTripleTerm

public LmdbTripleTerm(ValueStoreRevision revision,
 long internalID)

LmdbTripleTerm

public LmdbTripleTerm(ValueStoreRevision revision,
 Resource subject,
 IRI predicate,
 Value object)

LmdbTripleTerm

public LmdbTripleTerm(ValueStoreRevision revision,
 Resource subject,
 IRI predicate,
 Value object,
 long internalID)

Method Details

getSubject

public Resource getSubject()

Description copied from interface: TripleTerm

Gets the subject of this triple.

Specified by:

getSubject in interface TripleTerm

Returns:

The triple's subject.

getPredicate

public IRI getPredicate()

Description copied from interface: TripleTerm

Gets the predicate of this triple.

Specified by:

getPredicate in interface TripleTerm

Returns:

The triple's predicate.

getObject

public Value getObject()

Description copied from interface: TripleTerm

Gets the object of this triple.

Specified by:

getObject in interface TripleTerm

Returns:

The triple's object.

setInternalID

public void setInternalID(long id,
 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

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.

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

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.

setFromInitializedValue

public void setFromInitializedValue(LmdbValue initializedValue)

Description copied from interface: LmdbValue

Sets this value's data from an initialized value.

This must be only called within a synchronized block in the init() method of the uninitialized value.

Specified by:

setFromInitializedValue in interface LmdbValue

Parameters:

initializedValue - the initialized value to copy data from

writeReplace

protected Object writeReplace()
                       throws ObjectStreamException

Throws:

ObjectStreamException

equals

public boolean equals(Object o)

Description copied from interface: TripleTerm

Compares this triple to another object.

Specified by:

equals in interface TripleTerm

Overrides:

equals in class AbstractTripleTerm

Parameters:

o - the object to compare this triple to

Returns:

true if the other object is an instance of TripleTerm and if their subjects, predicates and objects are equal; false otherwise

hashCode

public int hashCode()

Description copied from interface: TripleTerm

Computes the hash code of this triple.

Specified by:

hashCode in interface TripleTerm

Overrides:

hashCode in class AbstractTripleTerm

Returns:

a hash code for this triple computed as Objects.hash( TripleTerm.getSubject(), TripleTerm.getPredicate(), TripleTerm.getObject())