edu.cornell.mannlib.vitro.webapp.modelaccess.adapters

Class ListCachingModelMaker

java.lang.Object

edu.cornell.mannlib.vitro.webapp.modelaccess.adapters.AbstractModelMakerDecorator

edu.cornell.mannlib.vitro.webapp.modelaccess.adapters.ListCachingModelMaker

All Implemented Interfaces:

org.apache.jena.rdf.model.ModelGetter, org.apache.jena.rdf.model.ModelMaker, org.apache.jena.rdf.model.ModelSource

public class ListCachingModelMaker
extends AbstractModelMakerDecorator

This ModelMaker keeps a cached list of the available models. The methods that create a model must add its name to the list. The methods that remove a model must remove its name from the list. This is a useful decorator for some ModelMakers where listModels() is a costly operation. The drawback is that it will not see models that were created at a lower level; perhaps by RDFServiceDataset.getNamedModel(). If listModels() is not costly, you might be better off with a ModelMakerWithPersistentEmptyModels.

Constructor Summary

Constructors

Constructor and Description
ListCachingModelMaker(org.apache.jena.rdf.model.ModelMaker inner)

Method Summary

Modifier and Type	Method and Description
org.apache.jena.rdf.model.Model	createModel(String name)
org.apache.jena.rdf.model.Model	createModel(String name, boolean strict)
org.apache.jena.rdf.model.Model	getModel(String URL)
org.apache.jena.rdf.model.Model	getModel(String URL, org.apache.jena.rdf.model.ModelReader loadIfAbsent)
boolean	hasModel(String name)
org.apache.jena.util.iterator.ExtendedIterator<String>	listModels()
org.apache.jena.rdf.model.Model	openModel(String name)
org.apache.jena.rdf.model.Model	openModel(String name, boolean strict)
org.apache.jena.rdf.model.Model	openModelIfPresent(String name)
void	removeModel(String name)

Methods inherited from class edu.cornell.mannlib.vitro.webapp.modelaccess.adapters.AbstractModelMakerDecorator

close, createDefaultModel, createFreshModel, getGraphMaker, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ListCachingModelMaker

public ListCachingModelMaker(org.apache.jena.rdf.model.ModelMaker inner)

Method Detail

hasModel

public boolean hasModel(String name)

Specified by:

hasModel in interface org.apache.jena.rdf.model.ModelMaker

Overrides:

hasModel in class AbstractModelMakerDecorator

listModels

public org.apache.jena.util.iterator.ExtendedIterator<String> listModels()

Specified by:

listModels in interface org.apache.jena.rdf.model.ModelMaker

Overrides:

listModels in class AbstractModelMakerDecorator

getModel

public org.apache.jena.rdf.model.Model getModel(String URL)

Specified by:

getModel in interface org.apache.jena.rdf.model.ModelGetter

Overrides:

getModel in class AbstractModelMakerDecorator

getModel

public org.apache.jena.rdf.model.Model getModel(String URL,
                                                org.apache.jena.rdf.model.ModelReader loadIfAbsent)

Specified by:

getModel in interface org.apache.jena.rdf.model.ModelGetter

Overrides:

getModel in class AbstractModelMakerDecorator

createModel

public org.apache.jena.rdf.model.Model createModel(String name,
                                                   boolean strict)

Specified by:

createModel in interface org.apache.jena.rdf.model.ModelMaker

Overrides:

createModel in class AbstractModelMakerDecorator

createModel

public org.apache.jena.rdf.model.Model createModel(String name)

Specified by:

createModel in interface org.apache.jena.rdf.model.ModelMaker

Overrides:

createModel in class AbstractModelMakerDecorator

openModel

public org.apache.jena.rdf.model.Model openModel(String name)

Specified by:

openModel in interface org.apache.jena.rdf.model.ModelSource

Overrides:

openModel in class AbstractModelMakerDecorator

openModelIfPresent

public org.apache.jena.rdf.model.Model openModelIfPresent(String name)

Specified by:

openModelIfPresent in interface org.apache.jena.rdf.model.ModelSource

Overrides:

openModelIfPresent in class AbstractModelMakerDecorator

openModel

public org.apache.jena.rdf.model.Model openModel(String name,
                                                 boolean strict)

Specified by:

openModel in interface org.apache.jena.rdf.model.ModelMaker

Overrides:

openModel in class AbstractModelMakerDecorator

removeModel

public void removeModel(String name)

Specified by:

removeModel in interface org.apache.jena.rdf.model.ModelMaker

Overrides:

removeModel in class AbstractModelMakerDecorator