org.aksw.jena_sparql_api.mapper.model

Class RdfTypeCollection

java.lang.Object

org.aksw.jena_sparql_api.mapper.impl.type.RdfTypeBase

org.aksw.jena_sparql_api.mapper.impl.type.RdfTypeComplexBase

org.aksw.jena_sparql_api.mapper.model.RdfTypeCollection

All Implemented Interfaces:

RdfType

public abstract class RdfTypeCollection
extends RdfTypeComplexBase

Field Summary

Fields

Modifier and Type	Field and Description
protected Class<?>	collectionClass
protected org.apache.jena.graph.Node	predicate

Constructor Summary

Constructors

Constructor and Description
RdfTypeCollection(Class<?> collectionClass, org.apache.jena.graph.Node predicate)

Method Summary

Modifier and Type	Method and Description
Object	createJavaObject(org.apache.jena.rdf.model.RDFNode node) Extract a Java (literal) object from a given node.
void	exposeShape(ResourceShapeBuilder rsb)
Class<?>	getEntityClass() Return the Java class corresponding to this type (maybe it should be Type instead of Class)
org.apache.jena.graph.Node	getRootNode(Object obj) Return the root node that corresponds to the given object in regard to this RdfType.
boolean	hasIdentity() Flag to indicate whether entities created from this mapping have their own identity.

Methods inherited from class org.aksw.jena_sparql_api.mapper.impl.type.RdfTypeComplexBase

isSimpleType

Methods inherited from class org.aksw.jena_sparql_api.mapper.impl.type.RdfTypeBase

resolve

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.jena_sparql_api.mapper.model.RdfType

exposeFragment, populate

Field Detail

predicate

protected org.apache.jena.graph.Node predicate

collectionClass

protected Class<?> collectionClass

Constructor Detail

RdfTypeCollection

public RdfTypeCollection(Class<?> collectionClass,
                         org.apache.jena.graph.Node predicate)

Method Detail

getEntityClass

public Class<?> getEntityClass()

Description copied from interface: RdfType

Return the Java class corresponding to this type (maybe it should be Type instead of Class)

Returns:

getRootNode

public org.apache.jena.graph.Node getRootNode(Object obj)

Description copied from interface: RdfType

Return the root node that corresponds to the given object in regard to this RdfType. In the case of classes, this is an IRI node, whereas for literals this is either a plain or typed literal node. Note, that the following condition is expected to hold: getRootNode(createJavaObject(node)).equals(node) For types mapping to plain literals, this method should (must?) never return null. Note that certain Java types may not have capabilities assigned for returning a node for a given object. In this case, the result will be null.

Returns:

createJavaObject

public Object createJavaObject(org.apache.jena.rdf.model.RDFNode node)

Description copied from interface: RdfType

Extract a Java (literal) object from a given node. Note: Creating a *non-primitive* java object is not a concern of RdfType which only *MAPS* between a java object and its corresponding triples. The reason is, that via the RdfType's entity class the association to a newInstance method can be indirectly made on the outside, without RdfType having to be aware of it. Also, an RdfType reading a collection may be capable of reading and writing to any collection type, regardless of the concrete sub-type (list, set, etc). Create an empty java object (i.e. no properties set) based on the given node. In the case of primitive types (e.g. String, Long, etc), the object will already carry the correct value. In the case of classes, the result may either be a Java object regardless of the node argument, or a proxy to such java object that holds the node

Returns:

exposeShape

public void exposeShape(ResourceShapeBuilder rsb)

hasIdentity

public boolean hasIdentity()

Description copied from interface: RdfType

Flag to indicate whether entities created from this mapping have their own identity. If not, ids are usually derived from the parent object

Returns: