org.apache.jena.reasoner.rulesys

Class MapBuiltinRegistry

java.lang.Object

org.apache.jena.reasoner.rulesys.BuiltinRegistry

org.apache.jena.reasoner.rulesys.MapBuiltinRegistry

public class MapBuiltinRegistry
extends BuiltinRegistry

A registry for mapping functor names on java objects (instances of subclasses of Builtin) which implement their behaviour.

This is currently implemented as a singleton to simply any future move to support different sets of builtins.

See Also:

Builtin

Field Summary

Fields inherited from class org.apache.jena.reasoner.rulesys.BuiltinRegistry

theRegistry

Constructor Summary

Constructors

Constructor and Description
MapBuiltinRegistry() Construct an empty registry

Method Summary

Modifier and Type	Method and Description
Builtin	getImplementation(String functor) Find the implementation of the given builtin functor.
Builtin	getImplementationByURI(String uri) Find the implementation of the given builtin functor.
void	register(Builtin impl) Register an implementation for a given builtin using its default name.
void	register(String functor, Builtin impl) Register an implementation for a given builtin functor.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapBuiltinRegistry

public MapBuiltinRegistry()

Construct an empty registry

Method Detail

register

public void register(String functor,
                     Builtin impl)

Description copied from class: BuiltinRegistry

Register an implementation for a given builtin functor.

Specified by:

register in class BuiltinRegistry

Parameters:

functor - the name of the functor used to invoke the builtin

impl - the implementation of the builtin

register

public void register(Builtin impl)

Description copied from class: BuiltinRegistry

Register an implementation for a given builtin using its default name.

Specified by:

register in class BuiltinRegistry

Parameters:

impl - the implementation of the builtin

getImplementation

public Builtin getImplementation(String functor)

Description copied from class: BuiltinRegistry

Find the implementation of the given builtin functor.

Specified by:

getImplementation in class BuiltinRegistry

Parameters:

functor - the name of the functor being invoked.

Returns:

a Builtin or null if there is none registered under that name

getImplementationByURI

public Builtin getImplementationByURI(String uri)

Description copied from class: BuiltinRegistry

Find the implementation of the given builtin functor.

Specified by:

getImplementationByURI in class BuiltinRegistry

Parameters:

uri - the URI of the builtin to be retrieved

Returns:

a Builtin or null if there is none registered under that name