Module org.apache.jena.core
Package org.apache.jena.ontology.models

Interface ModelGetter

All Known Subinterfaces:
ModelMaker, ModelSource
All Known Implementing Classes:
MemoryModelGetter, ModelMakerImpl
public interface ModelGetter
A ModelGetter object can retrieve a Model given a URL for it. If it doesn't have such a Model, it returns null.

ModelGetters are very weakly constrained. They need not contain any models at all; they may forget models they have just delivered; they may deliver different models given the same URL. They are constrained to deliver an "appropriate" model for the URL, however - whatever they return should be strongly related to the RDF which might, at some time or another, be retrieved from that URL.

  • Method Summary

    Modifier and Type
    Method
    Description
    Model
    getModel(String URL)
    Answer a Model whose content is that associated with the URL, if possible, and otherwise answer null.
    Model
    getModel(String URL, ModelReader loadIfAbsent)
    Answer a model appropriate for URL, If none is to hand, and it's possible to create one, create it and load it using loadIfAbsent.

  • Method Details

    • getModel

      Model getModel(String URL)
      Answer a Model whose content is that associated with the URL, if possible, and otherwise answer null.

    • getModel

      Model getModel(String URL, ModelReader loadIfAbsent)
      Answer a model appropriate for URL, If none is to hand, and it's possible to create one, create it and load it using loadIfAbsent. Otherwise throw CannotCreateException. This method never returns null.