Examples of org.joggito.core.descriptors.ResourceDescriptor

org.joggito.core.descriptors.ResourceDescriptor
Maintains meta-data of a resource bean. The meta information is obtained from the annotations declared in the bean class. Meta-data for an resource bean is created and stored in the meta context when the bean class is started to be used (the first instance is created) by the client and is kept alive by the end of the application (if it is not intentionally removed). @author Ovunc CETIN

    assertEquals(5, phonesProp.getMaxCardinality());
  }


  @Test
  public void creatingResourceDescriptors() throws Exception {
    ResourceDescriptor rd = factory.createResource(Person.class);


    assertEquals(Person.getPropertyCount(), rd.getProperties().size());
    assertNotNull(rd.getProperty(FOAF.firstName.getURI()));
    assertNotNull(rd.getProperty(FOAF.family_name.getURI()));
    assertNotNull(rd.getProperty(FOAF.mbox_sha1sum.getURI()));
    assertNotNull(rd.getProperty(FOAF.birthday.getURI()));
    assertNotNull(rd.getProperty(FOAF.phone.getURI()));
  }

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    // May be the bean is already registered.
    T bean = session.getRegisteredBean(rscID);
    if (bean == null) {
      // Create the bean object.
      final ResourceDescriptor desc = forceGetDescriptor(beanType);
      bean = ReflectUtils.createInstance(beanType, new Object[0]);
      ((ResourceBean) bean).setID(rscID);
      
      // Register the bean object.
      session.registerBean(bean);


      // Set property values.
      Collection<PropertyDescriptor> properties = desc.getProperties();
      for (PropertyDescriptor propDesc : properties) {
        this.setPropertyValue(rsc, bean, propDesc);
      }


    }

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  public <T> T createBean(Resource rsc) {
    final MetaContext metaContext = session.getMetaContext();


    // find the corresponding descriptor.
    Resource rdfType = rsc.getProperty(RDF.type).getResource();
    ResourceDescriptor descriptor = metaContext.getDescriptor(rdfType);
    if (descriptor == null) {
      throw new DescriptorNotFoundException(rdfType);
    }


    return this.<T> createBean((Class<T>) descriptor.getBeanClass(), rsc);
  }

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   * Returns the resource descriptor for the given bean type if exists,
   * otherwise throws a {@link DescriptorNotFoundException}.
   */
  private <T> ResourceDescriptor forceGetDescriptor(Class<T> beanType) {
    MetaContext metaContext = session.getMetaContext();
    final ResourceDescriptor desc = metaContext.getDescriptor(beanType);


    if (desc == null) { // no descriptor for bean type.
      throw new DescriptorNotFoundException(beanType);
    }
    return desc;

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Related Classes of org.joggito.core.descriptors.ResourceDescriptor

org.joggito.core.BeanFactory

org.joggito.test.core.TestRDFDescriptorCreations

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