slib.graph.model.impl.graph.weight

Class GWS_impl

java.lang.Object

slib.graph.model.impl.graph.weight.GWS_impl

All Implemented Interfaces:

GWS

public class GWS_impl
extends Object
implements GWS

In memory Graph Weighting Scheme (GWS) implementation of GWS

Author:

Sébastien Harispe

Constructor Summary

Constructors

Constructor and Description
GWS_impl() Create a weighting scheme with the default weight set to 1.
GWS_impl(double defaultWeight) Create a weighting scheme with a specific default weight.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	existsWeight(E e) Check if a specific weight is specified for this edge.
boolean	existsWeight(org.openrdf.model.URI e) Check if a weight is defined for a specific predicate.
double	getDefaultWeight() The default weight associated to an edge
double	getWeight(E e) Access to the weight of the edge.
Double	getWeight(org.openrdf.model.URI e) Access to the weight defined for a specific predicate.
void	setDefaultWeight(double w) Set the weight defined by default
void	setWeight(E e, double w) Set the weight for an edge
void	setWeight(org.openrdf.model.URI e, double w) Set the default weight for the specified URI.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

GWS_impl

public GWS_impl()

Create a weighting scheme with the default weight set to 1.

GWS_impl

public GWS_impl(double defaultWeight)

Create a weighting scheme with a specific default weight.

Parameters:

defaultWeight -

Method Detail

getDefaultWeight

public double getDefaultWeight()

Description copied from interface: GWS

The default weight associated to an edge

Specified by:

getDefaultWeight in interface GWS

Returns:

the default weight

setDefaultWeight

public void setDefaultWeight(double w)

Description copied from interface: GWS

Set the weight defined by default

Specified by:

setDefaultWeight in interface GWS

Parameters:

w - the new default weight

existsWeight

public boolean existsWeight(E e)

Description copied from interface: GWS

Check if a specific weight is specified for this edge. This method will return false no specific weight is specified, even if a weight is specified for the edges with the same URIs as the specified edge.

Specified by:

existsWeight in interface GWS

Parameters:

e - the edge we want to check if a weight is specified for.

Returns:

true if a weight is explicitly defined for the edge.

getWeight

public double getWeight(E e)

Description copied from interface: GWS

Access to the weight of the edge. The value return is the first from below:

• The specific weight associated to the edge
• The specific weight associated to predicate (type) of the edge
• The default weight

Specified by:

getWeight in interface GWS

Parameters:

e - the edge

Returns:

the weight associated to the edge

setWeight

public void setWeight(E e,
             double w)

Description copied from interface: GWS

Set the weight for an edge

Specified by:

setWeight in interface GWS

Parameters:

e - the edge

w - the weight

existsWeight

public boolean existsWeight(org.openrdf.model.URI e)

Description copied from interface: GWS

Check if a weight is defined for a specific predicate.

Specified by:

existsWeight in interface GWS

Returns:

true if a default weight exists for this predicate

getWeight

public Double getWeight(org.openrdf.model.URI e)

Description copied from interface: GWS

Access to the weight defined for a specific predicate.

Specified by:

getWeight in interface GWS

Parameters:

e - the predicate

Returns:

the default weight associated to the predicate. Null if no weight is associated to the predicate.

setWeight

public void setWeight(org.openrdf.model.URI e,
             double w)

Description copied from interface: GWS

Set the default weight for the specified URI.

Specified by:

setWeight in interface GWS

Parameters:

e - the default URI

w - the weight

toString

public String toString()

Overrides:

toString in class Object