| package org.eclipse.jpt.jaxb.core.internal.context.java; |
| |
| import java.util.Collection; |
| import org.eclipse.jpt.common.utility.internal.iterables.ArrayListIterable; |
| import org.eclipse.jpt.jaxb.core.JaxbFactory; |
| import org.eclipse.jpt.jaxb.core.MappingKeys; |
| import org.eclipse.jpt.jaxb.core.context.JaxbAttributeMapping; |
| import org.eclipse.jpt.jaxb.core.context.JaxbPersistentAttribute; |
| import org.eclipse.jpt.jaxb.core.context.java.DefaultJavaAttributeMappingDefinition; |
| import org.eclipse.jpt.jaxb.core.resource.java.JAXB; |
| import org.eclipse.jpt.jaxb.core.resource.java.JavaResourceAttribute; |
| |
| |
| public class JavaXmlElementsMappingDefinition |
| extends AbstractJavaAttributeMappingDefinition |
| implements DefaultJavaAttributeMappingDefinition { |
| |
| // singleton |
| private static final DefaultJavaAttributeMappingDefinition INSTANCE = new JavaXmlElementsMappingDefinition(); |
| |
| |
| /** |
| * Return the singleton. |
| */ |
| public static DefaultJavaAttributeMappingDefinition instance() { |
| return INSTANCE; |
| } |
| |
| |
| /** |
| * Enforce singleton usage |
| */ |
| private JavaXmlElementsMappingDefinition() { |
| super(); |
| } |
| |
| |
| public String getKey() { |
| return MappingKeys.XML_ELEMENTS_ATTRIBUTE_MAPPING_KEY; |
| } |
| |
| public String getAnnotationName() { |
| return JAXB.XML_ELEMENTS; |
| } |
| |
| public Iterable<String> getSupportingAnnotationNames() { |
| return new ArrayListIterable<String>( new String[] { |
| JAXB.XML_ELEMENT_WRAPPER, |
| JAXB.XML_IDREF, |
| JAXB.XML_JAVA_TYPE_ADAPTER }); |
| } |
| |
| public JaxbAttributeMapping buildMapping(JaxbPersistentAttribute parent, JaxbFactory factory) { |
| // TODO: move to factory once API opens up again |
| return new GenericJavaXmlElementsMapping(parent); |
| } |
| |
| /** |
| * From the JAXB spec section 8.12.5.1 Default Mapping: |
| * <p> |
| * A single valued property or field must be mapped by with the following default mapping annotation:<ul> |
| * <li> @XmlElement |
| * </ul> |
| * <p> |
| * A property or field with a collection type must be mapped by with the following default mapping annotation:<ul> |
| * <li> if the property or field is annotated with @XmlList, then the default mapping annotation is:<ul> |
| * <li> @XmlElement |
| * </ul> |
| * <li> otherwise the default mapping annotation is:<ul> |
| * <li> @XmlElements({ @XmlElement(nillable=true)}) |
| * </ul> |
| */ |
| public boolean isDefault(JaxbPersistentAttribute persistentAttribute) { |
| JavaResourceAttribute resourceAttribute = persistentAttribute.getJavaResourceAttribute(); |
| if (resourceAttribute.typeIsSubTypeOf(Collection.class.getName())) { |
| return resourceAttribute.getAnnotation(JAXB.XML_LIST) == null; |
| } |
| return true; |
| } |
| } |