Package org.eclipse.rdf4j.model.impl

Class GenericStatement<R extends Resource,I extends IRI,V extends Value>

java.lang.Object

org.eclipse.rdf4j.model.impl.GenericStatement<R,I,V>

All Implemented Interfaces:

Serializable, Statement

Direct Known Subclasses:

MemStatement

@Experimental
public class GenericStatement<R extends Resource,I extends IRI,V extends Value>
extends Object
implements Statement

An implementation of the Statement interface with support for Java Generics.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected final R	context
protected final V	object
protected final I	predicate
protected final R	subject

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GenericStatement(R subject, I predicate, V object, R context)	Creates a new Statement with the supplied subject, predicate and object for the specified associated context.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	Compares this statement to another object.
R	getContext()	Gets the context of this statement.
V	getObject()	Gets the object of this statement.
I	getPredicate()	Gets the predicate of this statement.
R	getSubject()	Gets the subject of this statement.
int	hashCode()	Computes the hash code of this statement.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

subject

protected final R extends Resource subject

predicate

protected final I extends IRI predicate

object

protected final V extends Value object

context

protected final R extends Resource context

Constructor Details

GenericStatement

protected GenericStatement(R subject,
 I predicate,
 V object,
 R context)

Creates a new Statement with the supplied subject, predicate and object for the specified associated context.

Note that creating an objects directly via this constructor is not the recommended approach. Instead, use a ValueFactory (obtained from your repository or by using SimpleValueFactory.getInstance()) to create new Statement objects.

Parameters:

subject - The statement's subject, must not be null.

predicate - The statement's predicate, must not be null.

object - The statement's object, must not be null.

context - The statement's context, null to indicate no context is associated.

Method Details

getSubject

public R getSubject()

Description copied from interface: Statement

Gets the subject of this statement.

Specified by:

getSubject in interface Statement

Returns:

The statement's subject.

getPredicate

public I getPredicate()

Description copied from interface: Statement

Gets the predicate of this statement.

Specified by:

getPredicate in interface Statement

Returns:

The statement's predicate.

getObject

public V getObject()

Description copied from interface: Statement

Gets the object of this statement.

Specified by:

getObject in interface Statement

Returns:

The statement's object.

getContext

public R getContext()

Description copied from interface: Statement

Gets the context of this statement.

Specified by:

getContext in interface Statement

Returns:

The statement's context, or null in case of the null context or if not applicable.

equals

public boolean equals(Object o)

Description copied from interface: Statement

Compares this statement to another object.

Specified by:

equals in interface Statement

Overrides:

equals in class Object

Parameters:

o - the object to compare this statement to

Returns:

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

hashCode

public int hashCode()

Description copied from interface: Statement

Computes the hash code of this statement.

Specified by:

hashCode in interface Statement

Overrides:

hashCode in class Object

Returns:

a hash code for this statement computed as Objects.hash( Statement.getSubject(), Statement.getPredicate(), Statement.getObject(), Statement.getContext())

toString

public String toString()

Overrides:

toString in class Object