Package openllet.core.rules

Class DatavaluePropertyBindingHelper

java.lang.Object

openllet.core.rules.DatavaluePropertyBindingHelper

All Implemented Interfaces:

BindingHelper

public class DatavaluePropertyBindingHelper
extends java.lang.Object
implements BindingHelper

Title: Datavalue Property Binding Helper

Description: Generates bindings based off the given _pattern. The predicate must be a datatype property. TODO: Rename to DatavaluedPropertyBindingHelper

Copyright: Copyright (c) 2007

Company: Clark & Parsia, LLC.

Author:

Ron Alford

Constructor Summary

Constructors

Constructor	Description
DatavaluePropertyBindingHelper(ABox abox, DatavaluedPropertyAtom pattern)

Method Summary

Modifier and Type	Method	Description
java.util.Collection<AtomVariable>	getBindableVars(java.util.Collection<AtomVariable> bound)
java.util.Collection<AtomVariable>	getPrerequisiteVars(java.util.Collection<AtomVariable> bound)
void	rebind(VariableBinding newBinding)	Set the incoming binding for this helper.
boolean	selectNextBinding()	Selects the next binding.
void	setCurrentBinding(VariableBinding currentBinding)	Set the variables this _pattern uses in the given map.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DatavaluePropertyBindingHelper

public DatavaluePropertyBindingHelper(ABox abox,
                                      DatavaluedPropertyAtom pattern)

Method Detail

getBindableVars

public java.util.Collection<AtomVariable> getBindableVars(java.util.Collection<AtomVariable> bound)

Specified by:

getBindableVars in interface BindingHelper

Returns:

a set of variables which this binding helper can bind.

getPrerequisiteVars

public java.util.Collection<AtomVariable> getPrerequisiteVars(java.util.Collection<AtomVariable> bound)

Specified by:

getPrerequisiteVars in interface BindingHelper

Returns:

a set of variables which must be bound before this helper can generate bindings.

rebind

public void rebind(VariableBinding newBinding)

Set the incoming binding for this helper. This fixes any variables that are already bound by a preceding Binding Helper.

Specified by:

rebind in interface BindingHelper

Parameters:

newBinding - Binding map. Copied on input.

selectNextBinding

public boolean selectNextBinding()

Selects the next binding.

Specified by:

selectNextBinding in interface BindingHelper

Returns:

True if a binding was available for this _pattern given the initial binding. False otherwise. Will return if the binding is not set.

setCurrentBinding

public void setCurrentBinding(VariableBinding currentBinding)

Set the variables this _pattern uses in the given map.

Specified by:

setCurrentBinding in interface BindingHelper

Parameters:

currentBinding -

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object