Class MemStatement

java.lang.Object

org.eclipse.rdf4j.model.impl.GenericStatement<MemResource, MemIRI, MemValue>

org.eclipse.rdf4j.sail.memory.model.MemStatement

All Implemented Interfaces:

Serializable, Statement

public class MemStatement
extends GenericStatement<MemResource, MemIRI, MemValue>

A MemStatement is a Statement which contains context information and a flag indicating whether the statement is explicit or inferred.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	explicit	Flag indicating whether or not this statement has been added explicitly or that it has been inferred.
private static final org.slf4j.Logger	logger
private static final long	serialVersionUID
private final int	sinceSnapshot	Identifies the snapshot in which this statement was introduced.
private static final VarHandle	TILL_SNAPSHOT
private int	tillSnapshot	Identifies the snapshot in which this statement was revoked, defaults to Integer.MAX_VALUE.

Fields inherited from class GenericStatement

context, object, predicate, subject

Constructor Summary

Constructors

Constructor	Description
MemStatement(MemResource subject, MemIRI predicate, MemValue object, MemResource context, boolean explicit, int sinceSnapshot)	Creates a new MemStatement with the supplied subject, predicate, object and context.
MemStatement(MemResource subject, MemIRI predicate, MemValue object, MemResource context, int sinceSnapshot)	Creates a new MemStatement with the supplied subject, predicate, object and context and marks it as 'explicit'.

Method Summary

Modifier and Type	Method	Description
void	addToComponentLists()	Lets this statement add itself to the appropriate statement lists of its subject, predicate, object and context.
boolean	exactMatch(MemResource subject, MemIRI predicate, MemValue object, MemResource context)
int	getSinceSnapshot()
int	getTillSnapshot()
boolean	isExplicit()
boolean	isInSnapshot(int snapshot)
boolean	matchesContext(MemResource[] memContexts)
boolean	matchesSPO(MemResource subject, MemIRI predicate, MemValue object)
void	setExplicit(boolean explicit)	Deprecated, for removal: This API element is subject to removal in a future version.
void	setTillSnapshot(int snapshot)

Methods inherited from class GenericStatement

equals, getContext, getObject, getPredicate, getSubject, hashCode, toString

Methods inherited from class Object

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

Field Details

logger

private static final org.slf4j.Logger logger

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

explicit

private final boolean explicit

Flag indicating whether or not this statement has been added explicitly or that it has been inferred.

sinceSnapshot

private final int sinceSnapshot

Identifies the snapshot in which this statement was introduced.

tillSnapshot

private volatile int tillSnapshot

Identifies the snapshot in which this statement was revoked, defaults to Integer.MAX_VALUE.

TILL_SNAPSHOT

private static final VarHandle TILL_SNAPSHOT

Constructor Details

MemStatement

public MemStatement(MemResource subject,
 MemIRI predicate,
 MemValue object,
 MemResource context,
 int sinceSnapshot)

Creates a new MemStatement with the supplied subject, predicate, object and context and marks it as 'explicit'.

MemStatement

public MemStatement(MemResource subject,
 MemIRI predicate,
 MemValue object,
 MemResource context,
 boolean explicit,
 int sinceSnapshot)

Creates a new MemStatement with the supplied subject, predicate, object and context. The value of the explicit parameter determines if this statement is marked as 'explicit' or not.

Method Details

getSinceSnapshot

public int getSinceSnapshot()

setTillSnapshot

public void setTillSnapshot(int snapshot)

getTillSnapshot

public int getTillSnapshot()

isInSnapshot

public boolean isInSnapshot(int snapshot)

setExplicit

@Deprecated(since="4.0.0",
            forRemoval=true)
public void setExplicit(boolean explicit)

Deprecated, for removal: This API element is subject to removal in a future version.

isExplicit

public boolean isExplicit()

addToComponentLists

public void addToComponentLists()
                         throws InterruptedException

Lets this statement add itself to the appropriate statement lists of its subject, predicate, object and context. The transaction status will be set to new.

Throws:

InterruptedException

matchesSPO

public boolean matchesSPO(MemResource subject,
 MemIRI predicate,
 MemValue object)

matchesContext

public boolean matchesContext(MemResource[] memContexts)

exactMatch

public boolean exactMatch(MemResource subject,
 MemIRI predicate,
 MemValue object,
 MemResource context)