Examples of org.eclipse.persistence.oxm.mappings.XMLObjectReferenceMapping

Package org.eclipse.persistence.oxm.mappings

Examples of org.eclipse.persistence.oxm.mappings.XMLObjectReferenceMapping

org.eclipse.persistence.oxm.mappings.XMLObjectReferenceMapping
TopLink OXM version of a 1-1 mapping. A list of source-target key field associations is used to link the source xpaths to their related target xpaths, and hence their primary key (unique identifier) values used when (un)marshalling. This mapping has a Vector of XMLFields as opposed to a single XMLField. It is important to note that each target xpath is assumed to be set as a primary key field on the target (reference) class descriptor - this is necessary in order to locate the correct target object instance in the session cache when resolving mapping references.

     * @param descriptor
     * @param namespaceInfo
     * @param referenceClass
     */
    public XMLObjectReferenceMapping generateXMLObjectReferenceMapping(Property property, XMLDescriptor descriptor, NamespaceInfo namespaceInfo, JavaClass referenceClass) {
        XMLObjectReferenceMapping mapping = new XMLObjectReferenceMapping();
        mapping.setAttributeName(property.getPropertyName());


        // handle read-only set via metadata
        if (property.isSetReadOnly()) {
            mapping.setIsReadOnly(property.isReadOnly());
        }
        // handle write-only set via metadata
        if (property.isSetWriteOnly()) {
            mapping.setIsWriteOnly(property.isWriteOnly());
        }
        if (property.isMethodProperty()) {
            if (property.getGetMethodName() == null) {
                // handle case of set with no get method
                String paramTypeAsString = property.getType().getName();
                mapping.setAttributeAccessor(new JAXBSetMethodAttributeAccessor(paramTypeAsString, helper.getClassLoader()));
                mapping.setIsReadOnly(true);
                mapping.setSetMethodName(property.getSetMethodName());
            } else if (property.getSetMethodName() == null) {
                mapping.setGetMethodName(property.getGetMethodName());
                mapping.setIsWriteOnly(true);
            } else {
                mapping.setSetMethodName(property.getSetMethodName());
                mapping.setGetMethodName(property.getGetMethodName());
            }
        }
        mapping.setReferenceClassName(referenceClass.getQualifiedName());


        // here we need to setup source/target key field associations
        if (property.isSetXmlJoinNodes()) {
            for (XmlJoinNode xmlJoinNode: property.getXmlJoinNodes().getXmlJoinNode()) {
                validateJoinNode(descriptor.getJavaClassName(), property, xmlJoinNode.getReferencedXmlPath(), referenceClass);
                mapping.addSourceToTargetKeyFieldAssociation(xmlJoinNode.getXmlPath(), xmlJoinNode.getReferencedXmlPath());
            }
        } else {
            String tgtXPath = null;
            TypeInfo referenceType = typeInfo.get(referenceClass.getQualifiedName());
            if (null != referenceType && referenceType.isIDSet()) {
                Property prop = referenceType.getIDProperty();
                tgtXPath = getXPathForField(prop, namespaceInfo, !prop.isAttribute(), false).getXPath();
            }
            // if the XPath is set (via xml-path) use it, otherwise figure it out
            XMLField srcXPath;
            if (property.getXmlPath() != null) {
                srcXPath = new XMLField(property.getXmlPath());
            } else {
                srcXPath = getXPathForField(property, namespaceInfo, true, false);
            }
            mapping.addSourceToTargetKeyFieldAssociation(srcXPath.getXPath(), tgtXPath);
        }        
        if (property.getInverseReferencePropertyName() != null) {
            mapping.getInverseReferenceMapping().setAttributeName(property.getInverseReferencePropertyName());
            JavaClass backPointerPropertyType = null;
            if (property.getInverseReferencePropertyGetMethodName() != null && property.getInverseReferencePropertySetMethodName() != null && !property.getInverseReferencePropertyGetMethodName().equals("") && !property.getInverseReferencePropertySetMethodName().equals("")) {
                mapping.getInverseReferenceMapping().setGetMethodName(property.getInverseReferencePropertySetMethodName());
                mapping.getInverseReferenceMapping().setSetMethodName(property.getInverseReferencePropertySetMethodName());
                JavaMethod getMethod = referenceClass.getDeclaredMethod(mapping.getInverseReferenceMapping().getGetMethodName(), new JavaClass[]{});
                if (getMethod != null) {
                    backPointerPropertyType = getMethod.getReturnType();
                }
            } else {
                JavaField backpointerField = referenceClass.getDeclaredField(property.getInverseReferencePropertyName());
                if (backpointerField != null) {
                    backPointerPropertyType = backpointerField.getResolvedType();
                }
            }
            if (helper.isCollectionType(backPointerPropertyType)) {
                mapping.getInverseReferenceMapping().setContainerPolicy(ContainerPolicy.buildDefaultPolicy());
            }
        }
        return mapping;
    }

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                    }
                    return associations;
                }


                public void setAttributeValueInObject(Object object, Object value) {
                    XMLObjectReferenceMapping mapping = (XMLObjectReferenceMapping) object;
                    List associations = (List)value;
                    mapping.setSourceToTargetKeyFieldAssociations(new HashMap(associations.size() + 1));
                    Iterator iterator = associations.iterator();
                    while (iterator.hasNext()) {
                        Association association = (Association)iterator.next();
                        mapping.getSourceToTargetKeyFieldAssociations().put(association.getKey(), association.getValue());
                    }
                }
            });
        sourceToTargetKeyFieldAssociationsMapping.setAttributeName("sourceToTargetKeyFieldAssociations");
        sourceToTargetKeyFieldAssociationsMapping.setXPath(getPrimaryNamespaceXPath() + "source-to-target-key-field-association/" + getSecondaryNamespaceXPath() + "field-reference");

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                    }
                    return associations;
                }


                public void setAttributeValueInObject(Object object, Object value) {
                    XMLObjectReferenceMapping mapping = (XMLObjectReferenceMapping) object;
                    List associations = (List)value;
                    mapping.setSourceToTargetKeyFieldAssociations(new HashMap(associations.size() + 1));
                    Iterator iterator = associations.iterator();
                    while (iterator.hasNext()) {
                        Association association = (Association)iterator.next();
                        mapping.getSourceToTargetKeyFieldAssociations().put(association.getKey(), association.getValue());
                    }
                }
            });
        sourceToTargetKeyFieldAssociationsMapping.setAttributeName("sourceToTargetKeyFieldAssociations");
        sourceToTargetKeyFieldAssociationsMapping.setXPath(getPrimaryNamespaceXPath() + "source-to-target-key-field-association/" + getSecondaryNamespaceXPath() + "field-reference");

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                    //iterate over the oxm mappings. Any ReferenceMappings that have a 
                    //collection as a backpointer, check to see if the container policy
                    //needs to be matched with the ORM project
                    DatabaseMapping nextMapping = oxmMappingsIterator.next();
                    if(nextMapping instanceof XMLObjectReferenceMapping) {
                        XMLObjectReferenceMapping refMapping = (XMLObjectReferenceMapping)nextMapping;
                        if(refMapping.getInverseReferenceMapping().getAttributeAccessor() != null && refMapping.getInverseReferenceMapping().getContainerPolicy() != null) {
                            ClassDescriptor refDescriptor = ormSession.getClassDescriptor(refMapping.getReferenceClass());
                            if(refDescriptor != null) {
                                DatabaseMapping backpointerMapping =refDescriptor.getMappingForAttributeName(refMapping.getInverseReferenceMapping().getAttributeName());
                                if(backpointerMapping != null && backpointerMapping.isCollectionMapping()) {
                                    refMapping.getInverseReferenceMapping().getContainerPolicy().setContainerClass(((CollectionMapping)backpointerMapping).getContainerPolicy().getContainerClass());
                                }
                            }
                        }
                    }
                }

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                    }
                    return associations;
                }


                public void setAttributeValueInObject(Object object, Object value) {
                    XMLObjectReferenceMapping mapping = (XMLObjectReferenceMapping) object;
                    List associations = (List)value;
                    mapping.setSourceToTargetKeyFieldAssociations(new HashMap(associations.size() + 1));
                    Iterator iterator = associations.iterator();
                    while (iterator.hasNext()) {
                        Association association = (Association)iterator.next();
                        mapping.getSourceToTargetKeyFieldAssociations().put(association.getKey(), association.getValue());
                    }
                }
            });
        sourceToTargetKeyFieldAssociationsMapping.setAttributeName("sourceToTargetKeyFieldAssociations");
        sourceToTargetKeyFieldAssociationsMapping.setXPath(getPrimaryNamespaceXPath() + "source-to-target-key-field-association/" + getSecondaryNamespaceXPath() + "field-reference");

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                        }
                       
                      
                        continue;
                    } else if (xmlMapping instanceof XMLObjectReferenceMapping) {
                        XMLObjectReferenceMapping xmlORMapping = (XMLObjectReferenceMapping)xmlMapping;
                        Iterator fieldIt = xmlORMapping.getFields().iterator();
                        while (fieldIt.hasNext()) {
                            XMLField xmlFld = (XMLField)fieldIt.next();
                            mappingNodeValue = new XMLObjectReferenceMappingNodeValue(xmlORMapping, xmlFld);
                            if (mappingNodeValue.isContainerValue()) {
                                addContainerValue((ContainerValue)mappingNodeValue);

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                            final Callable c;
                            try {
                                if (primaryKey.getPrimaryKey().length > 1) {
                                    Map<String, Object> idWrapper = new HashMap<String, Object>();
                                    for (int y = 0; y < primaryKey.getPrimaryKey().length; y++) {
                                        XMLObjectReferenceMapping refMapping = (XMLObjectReferenceMapping) reference.getMapping();
                                        String idName = (String) refMapping.getReferenceDescriptor().getPrimaryKeyFieldNames().get(y);
                                        Object idValue = primaryKey.getPrimaryKey()[y];
                                        idWrapper.put(idName, idValue);
                                    }
                                    c = userSpecifiedResolver.resolve(idWrapper, reference.getTargetClass());
                                } else {
                                    c = userSpecifiedResolver.resolve(primaryKey.getPrimaryKey()[0], reference.getTargetClass());
                                }
                                if (c != null) {
                                    value = c.call();
                                }
                            } catch (Exception e) {
                                throw XMLMarshalException.unmarshalException(e);
                            }
                        } else {
                            value = getValue(session, reference, primaryKey, handler);
                        }
                        
                        if (value != null) {
                             cPolicy.addInto(value, container, session);
                        }
                    }
                }
                // for each reference, get the source object and add it to the container policy
                // when finished, set the policy on the mapping
                mapping.setAttributeValueInObject(referenceSourceObject, container);
                XMLInverseReferenceMapping inverseReferenceMapping = mapping.getInverseReferenceMapping();
                if(inverseReferenceMapping != null && value != null) {
                    AttributeAccessor backpointerAccessor = inverseReferenceMapping.getAttributeAccessor();
                    ContainerPolicy backpointerContainerPolicy = inverseReferenceMapping.getContainerPolicy();
                    if(backpointerContainerPolicy == null) {
                        backpointerAccessor.setAttributeValueInObject(value, referenceSourceObject);
                    } else {
                        Object backpointerContainer = backpointerAccessor.getAttributeValueFromObject(value);
                        if(backpointerContainer == null) {
                            backpointerContainer = backpointerContainerPolicy.containerInstance();
                            backpointerAccessor.setAttributeValueInObject(value, backpointerContainer);
                        }
                        backpointerContainerPolicy.addInto(referenceSourceObject, backpointerContainer, session);
                    }
                }
            } else if (reference.getMapping() instanceof XMLObjectReferenceMapping) {
                CacheId primaryKey = (CacheId) reference.getPrimaryKey();
                Object value = null;
                if (userSpecifiedResolver != null) {
                    final Callable c;
                    try {
                        if (primaryKey.getPrimaryKey().length > 1) {
                            Map<String, Object> idWrapper = new HashMap<String, Object>();
                            for (int y = 0; y < primaryKey.getPrimaryKey().length; y++) {
                                XMLObjectReferenceMapping refMapping = (XMLObjectReferenceMapping) reference.getMapping();
                                String idName = (String) refMapping.getReferenceDescriptor().getPrimaryKeyFieldNames().get(y);
                                Object idValue = primaryKey.getPrimaryKey()[y];
                                idWrapper.put(idName, idValue);
                            }
                            c = userSpecifiedResolver.resolve(idWrapper, reference.getTargetClass());
                        } else {
                            c = userSpecifiedResolver.resolve(primaryKey.getPrimaryKey()[0], reference.getTargetClass());
                        }
                        if (c != null) {
                            value = c.call();
                        }
                    } catch (Exception e) {
                        throw XMLMarshalException.unmarshalException(e);
                    }
                } else {
                    value = getValue(session, reference, primaryKey, handler);
                }


                XMLObjectReferenceMapping mapping = (XMLObjectReferenceMapping)reference.getMapping();
                if (value != null) {
                    mapping.setAttributeValueInObject(reference.getSourceObject(), value);
                }
                if (null != reference.getSetting()) {
                    reference.getSetting().setValue(value);
                }


                XMLInverseReferenceMapping inverseReferenceMapping = mapping.getInverseReferenceMapping();
                if(inverseReferenceMapping != null) {
                    AttributeAccessor backpointerAccessor = inverseReferenceMapping.getAttributeAccessor();
                    ContainerPolicy backpointerContainerPolicy = inverseReferenceMapping.getContainerPolicy();
                    if(backpointerContainerPolicy == null) {
                        backpointerAccessor.setAttributeValueInObject(value, referenceSourceObject);

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        }
        return mapping;
    }


    private DatabaseMapping buildXMLObjectReferenceMapping(String mappingUri) {
        XMLObjectReferenceMapping mapping = new XMLObjectReferenceMapping();
        mapping.setAttributeName(getName());


        if (getType().isDataObjectType()) {
            getType().setImplClassName(SDOConstants.SDO_DATA_OBJECT_IMPL_CLASS_NAME);
        }
        mapping.setReferenceClassName(getType().getImplClassName());
        mapping.setReferenceClass(getType().getImplClass());


        String sourcexpath = getQualifiedXPath(getContainingType().getURI(), true);


        // Get reference ID property if it exists
        SDOProperty targetIDProp = getIDProp(getType());


        if (targetIDProp != null) {
            String targetxpath = targetIDProp.getQualifiedXPath(getType().getURI(), true);
            mapping.addSourceToTargetKeyFieldAssociation(sourcexpath, targetxpath);
        } else {
            throw SDOException.noTargetIdSpecified(getType().getURI(), getType().getName());
        }
        return mapping;
    }

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     */
    DatabaseMapping getJAXBMappingForProperty(SDOProperty sdoProperty) {
        DatabaseMapping sdoMapping = sdoProperty.getXmlMapping();
        XMLField field;
        if (sdoMapping instanceof XMLObjectReferenceMapping) {
            XMLObjectReferenceMapping referenceMapping = (XMLObjectReferenceMapping) sdoMapping;
            field = (XMLField) referenceMapping.getFields().get(0);
        } else {
            field = (XMLField) sdoMapping.getField();
        }
        TreeObjectBuilder treeObjectBuilder = (TreeObjectBuilder) descriptor.getObjectBuilder();
        XPathNode xPathNode = treeObjectBuilder.getRootXPathNode();

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     * @param descriptor
     * @param namespaceInfo
     * @param referenceClass
     */
    public XMLObjectReferenceMapping generateXMLObjectReferenceMapping(Property property, XMLDescriptor descriptor, NamespaceInfo namespaceInfo, JavaClass referenceClass) {
        XMLObjectReferenceMapping mapping = new XMLObjectReferenceMapping();
        mapping.setAttributeName(property.getPropertyName());


        // handle read-only set via metadata
        if (property.isSetReadOnly()) {
            mapping.setIsReadOnly(property.isReadOnly());
        }
        // handle write-only set via metadata
        if (property.isSetWriteOnly()) {
            mapping.setIsWriteOnly(property.isWriteOnly());
        }
        if (property.isMethodProperty()) {
            if (property.getGetMethodName() == null) {
                // handle case of set with no get method
                String paramTypeAsString = property.getType().getName();
                mapping.setAttributeAccessor(new JAXBSetMethodAttributeAccessor(paramTypeAsString, helper.getClassLoader()));
                mapping.setIsReadOnly(true);
                mapping.setSetMethodName(property.getSetMethodName());
            } else if (property.getSetMethodName() == null) {
                mapping.setGetMethodName(property.getGetMethodName());
                mapping.setIsWriteOnly(true);
            } else {
                mapping.setSetMethodName(property.getSetMethodName());
                mapping.setGetMethodName(property.getGetMethodName());
            }
        }
        mapping.setReferenceClassName(referenceClass.getQualifiedName());


        // here we need to setup source/target key field associations
        if (property.isSetXmlJoinNodes()) {
            for (XmlJoinNode xmlJoinNode: property.getXmlJoinNodes().getXmlJoinNode()) {
                validateJoinNode(descriptor.getJavaClassName(), property, xmlJoinNode.getReferencedXmlPath(), referenceClass);
                mapping.addSourceToTargetKeyFieldAssociation(xmlJoinNode.getXmlPath(), xmlJoinNode.getReferencedXmlPath());
            }
        } else {
            String tgtXPath = null;
            TypeInfo referenceType = typeInfo.get(referenceClass.getQualifiedName());
            if (null != referenceType && referenceType.isIDSet()) {
                Property prop = referenceType.getIDProperty();
                tgtXPath = getXPathForField(prop, namespaceInfo, !prop.isAttribute()).getXPath();
            }
            // if the XPath is set (via xml-path) use it, otherwise figure it out
            XMLField srcXPath;
            if (property.getXmlPath() != null) {
                srcXPath = new XMLField(property.getXmlPath());
            } else {
                srcXPath = getXPathForField(property, namespaceInfo, true);
            }
            mapping.addSourceToTargetKeyFieldAssociation(srcXPath.getXPath(), tgtXPath);
        }        
        if (property.getInverseReferencePropertyName() != null) {
            mapping.getInverseReferenceMapping().setAttributeName(property.getInverseReferencePropertyName());
            JavaClass backPointerPropertyType = null;
            if (property.getInverseReferencePropertyGetMethodName() != null && property.getInverseReferencePropertySetMethodName() != null && !property.getInverseReferencePropertyGetMethodName().equals("") && !property.getInverseReferencePropertySetMethodName().equals("")) {
                mapping.getInverseReferenceMapping().setGetMethodName(property.getInverseReferencePropertySetMethodName());
                mapping.getInverseReferenceMapping().setSetMethodName(property.getInverseReferencePropertySetMethodName());
                JavaMethod getMethod = referenceClass.getDeclaredMethod(mapping.getInverseReferenceMapping().getGetMethodName(), new JavaClass[]{});
                if (getMethod != null) {
                    backPointerPropertyType = getMethod.getReturnType();
                }
            } else {
                JavaField backpointerField = referenceClass.getDeclaredField(property.getInverseReferencePropertyName());
                if (backpointerField != null) {
                    backPointerPropertyType = backpointerField.getResolvedType();
                }
            }
            if (isCollectionType(backPointerPropertyType)) {
                mapping.getInverseReferenceMapping().setContainerPolicy(ContainerPolicy.buildDefaultPolicy());
            }
        }
        return mapping;
    }

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