Package org.aksw.jena_sparql_api.mapper.model

Interface RdfMapper

All Known Subinterfaces:
RdfMapperProperty
All Known Implementing Classes:
RdfMapperPropertyBase, RdfMapperPropertyMulti, RdfMapperPropertySingle
public interface RdfMapper
RdfPopulators map bean properties to triples and vice versa. In general RdfPopulators can implement arbitrary mappings between bean properties and RDF triples, i.e. beanProperties:triples -- 1:n, m:n, m:1 Note that an RDF populator only populates the *immediate* properties. Scheduling Lazy / Eager fetching is NOT up to the populator.
Author:
raven

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    exposeFragment(ResourceFragment out, org.apache.jena.rdf.model.Resource priorState, Object entity)
     
    void
    exposeShape(org.aksw.jena_sparql_api.shape.ResourceShapeBuilder shapeBuilder)
    Expose SPARQL patterns that identify the set of triples that are needed to populate the *immediate* values of the affected entity properties.
    default String
    getName()
    It may be useful giving property mappers names.
    Set<String>
    getPropertyNames()
    Return the set of entity properties which are affected by this populator.
    void
    populate(EntityFragment out, org.apache.jena.rdf.model.Resource shape, Object entity)
     
    PathFragment
    resolve(String propertyName)
    Return a relation that addresses the attribute on in the RDF

  • Method Details

    • getName

      default String getName()
      It may be useful giving property mappers names. For mappers that map to a single java property, the mapper name can be that of the property. But if a mapper writes to multiple java properties, a custom name could be given. A default implementation could return a string from joining the ordered affected property names alphabetically.

    • getPropertyNames

      Set<String> getPropertyNames()
      Return the set of entity properties which are affected by this populator. For instance, an RDF wktLiteral may map to two properties 'lat' and 'long'
      Returns:

    • exposeShape

      void exposeShape(org.aksw.jena_sparql_api.shape.ResourceShapeBuilder shapeBuilder)
      Expose SPARQL patterns that identify the set of triples that are needed to populate the *immediate* values of the affected entity properties.
      Parameters:
      shapeBuilder -

    • exposeFragment

      void exposeFragment(ResourceFragment out, org.apache.jena.rdf.model.Resource priorState, Object entity)

    • populate

      void populate(EntityFragment out, org.apache.jena.rdf.model.Resource shape, Object entity)

    • resolve

      PathFragment resolve(String propertyName)
      Return a relation that addresses the attribute on in the RDF
      Returns: