Examples with OneToMany javax.persistence.OneToMany used on opensource projects

Example 21 with OneToMany

use of javax.persistence.OneToMany in project orientdb by orientechnologies.

the class OObjectEntitySerializer method registerClass.

/**
   * Registers the class informations that will be used in serialization, deserialization and lazy loading of it. If already
   * registered does nothing.
   *
   * @param iClass
   *          :- the Class<?> to register
   * @param forceReload whether or not to force the reload of the schema before registering
   */
@SuppressWarnings("unchecked")
public static synchronized void registerClass(final Class<?> iClass, boolean forceReload) {
    if (!ODatabaseRecordThreadLocal.INSTANCE.isDefined() || ODatabaseRecordThreadLocal.INSTANCE.get().isClosed())
        return;
    final OObjectEntitySerializedSchema serializedSchema = getCurrentSerializedSchema();
    if (serializedSchema == null)
        return;
    if (Proxy.class.isAssignableFrom(iClass) || iClass.isEnum() || OReflectionHelper.isJavaType(iClass) || iClass.isAnonymousClass() || serializedSchema.classes.contains(iClass)) {
        return;
    }
    boolean reloadSchema = false;
    boolean automaticSchemaGeneration = false;
    final ODatabaseDocumentInternal db = ODatabaseRecordThreadLocal.INSTANCE.get();
    final OSchema oSchema = db.getMetadata().getSchema();
    if (forceReload) {
        oSchema.reload();
    }
    if (!oSchema.existsClass(iClass.getSimpleName())) {
        if (Modifier.isAbstract(iClass.getModifiers()))
            oSchema.createAbstractClass(iClass.getSimpleName());
        else
            oSchema.createClass(iClass.getSimpleName());
        reloadSchema = true;
        if (db.getDatabaseOwner() instanceof OObjectDatabaseTx)
            automaticSchemaGeneration = ((OObjectDatabaseTx) db.getDatabaseOwner()).isAutomaticSchemaGeneration();
    }
    for (Class<?> currentClass = iClass; currentClass != Object.class; ) {
        if (!serializedSchema.classes.contains(currentClass)) {
            serializedSchema.classes.add(currentClass);
            Class<?> fieldType;
            for (Field f : currentClass.getDeclaredFields()) {
                final String fieldName = f.getName();
                final int fieldModifier = f.getModifiers();
                boolean transientField = false;
                if (Modifier.isStatic(fieldModifier) || Modifier.isFinal(fieldModifier) || Modifier.isNative(fieldModifier) || Modifier.isTransient(fieldModifier)) {
                    List<String> classTransientFields = serializedSchema.transientFields.get(currentClass);
                    if (classTransientFields == null)
                        classTransientFields = new ArrayList<String>();
                    classTransientFields.add(fieldName);
                    serializedSchema.transientFields.put(currentClass, classTransientFields);
                    transientField = true;
                }
                if (fieldName.equals("this$0")) {
                    List<String> classTransientFields = serializedSchema.transientFields.get(currentClass);
                    if (classTransientFields == null)
                        classTransientFields = new ArrayList<String>();
                    classTransientFields.add(fieldName);
                    serializedSchema.transientFields.put(currentClass, classTransientFields);
                    transientField = true;
                }
                if (OObjectSerializerHelper.jpaTransientClass != null) {
                    Annotation ann = f.getAnnotation(OObjectSerializerHelper.jpaTransientClass);
                    if (ann != null) {
                        // @Transient DEFINED
                        List<String> classTransientFields = serializedSchema.transientFields.get(currentClass);
                        if (classTransientFields == null)
                            classTransientFields = new ArrayList<String>();
                        classTransientFields.add(fieldName);
                        serializedSchema.transientFields.put(currentClass, classTransientFields);
                        transientField = true;
                    }
                }
                if (!transientField) {
                    List<String> allClassFields = serializedSchema.allFields.get(currentClass);
                    if (allClassFields == null)
                        allClassFields = new ArrayList<String>();
                    allClassFields.add(fieldName);
                    serializedSchema.allFields.put(currentClass, allClassFields);
                }
                if (OObjectSerializerHelper.jpaOneToOneClass != null) {
                    Annotation ann = f.getAnnotation(OObjectSerializerHelper.jpaOneToOneClass);
                    if (ann != null) {
                        // @OneToOne DEFINED
                        OneToOne oneToOne = ((OneToOne) ann);
                        if (checkCascadeDelete(oneToOne)) {
                            addCascadeDeleteField(currentClass, fieldName);
                        }
                        if (checkFetchLazy(oneToOne)) {
                            addFetchLazyField(currentClass, fieldName);
                        }
                    }
                }
                if (OObjectSerializerHelper.jpaOneToManyClass != null) {
                    Annotation ann = f.getAnnotation(OObjectSerializerHelper.jpaOneToManyClass);
                    if (ann != null) {
                        // @OneToMany DEFINED
                        OneToMany oneToMany = ((OneToMany) ann);
                        if (checkCascadeDelete(oneToMany)) {
                            addCascadeDeleteField(currentClass, fieldName);
                        }
                    }
                }
                if (OObjectSerializerHelper.jpaManyToManyClass != null) {
                    Annotation ann = f.getAnnotation(OObjectSerializerHelper.jpaManyToManyClass);
                    if (ann != null) {
                        // @OneToMany DEFINED
                        ManyToMany manyToMany = ((ManyToMany) ann);
                        if (checkCascadeDelete(manyToMany)) {
                            addCascadeDeleteField(currentClass, fieldName);
                        }
                    }
                }
                fieldType = f.getType();
                if (Collection.class.isAssignableFrom(fieldType) || fieldType.isArray() || Map.class.isAssignableFrom(fieldType)) {
                    fieldType = OReflectionHelper.getGenericMultivalueType(f);
                }
                if (isToSerialize(fieldType)) {
                    Map<Field, Class<?>> serializeClass = serializedSchema.serializedFields.get(currentClass);
                    if (serializeClass == null)
                        serializeClass = new HashMap<Field, Class<?>>();
                    serializeClass.put(f, fieldType);
                    serializedSchema.serializedFields.put(currentClass, serializeClass);
                }
                // CHECK FOR DIRECT-BINDING
                boolean directBinding = true;
                if (f.getAnnotation(OAccess.class) == null || f.getAnnotation(OAccess.class).value() == OAccess.OAccessType.PROPERTY)
                    directBinding = true;
                else // JPA 2+ AVAILABLE?
                if (OObjectSerializerHelper.jpaAccessClass != null) {
                    Annotation ann = f.getAnnotation(OObjectSerializerHelper.jpaAccessClass);
                    if (ann != null) {
                        directBinding = true;
                    }
                }
                if (directBinding) {
                    List<String> classDirectAccessFields = serializedSchema.directAccessFields.get(currentClass);
                    if (classDirectAccessFields == null)
                        classDirectAccessFields = new ArrayList<String>();
                    classDirectAccessFields.add(fieldName);
                    serializedSchema.directAccessFields.put(currentClass, classDirectAccessFields);
                }
                if (f.getAnnotation(ODocumentInstance.class) != null)
                    // BOUND DOCUMENT ON IT
                    serializedSchema.boundDocumentFields.put(currentClass, f);
                boolean idFound = false;
                if (f.getAnnotation(OId.class) != null) {
                    // RECORD ID
                    serializedSchema.fieldIds.put(currentClass, f);
                    idFound = true;
                } else // JPA 1+ AVAILABLE?
                if (OObjectSerializerHelper.jpaIdClass != null && f.getAnnotation(OObjectSerializerHelper.jpaIdClass) != null) {
                    // RECORD ID
                    serializedSchema.fieldIds.put(currentClass, f);
                    idFound = true;
                }
                if (idFound) {
                    // CHECK FOR TYPE
                    if (fieldType.isPrimitive())
                        OLogManager.instance().warn(OObjectSerializerHelper.class, "Field '%s' cannot be a literal to manage the Record Id", f.toString());
                    else if (!ORID.class.isAssignableFrom(fieldType) && fieldType != String.class && fieldType != Object.class && !Number.class.isAssignableFrom(fieldType))
                        OLogManager.instance().warn(OObjectSerializerHelper.class, "Field '%s' cannot be managed as type: %s", f.toString(), fieldType);
                }
                boolean vFound = false;
                if (f.getAnnotation(OVersion.class) != null) {
                    // RECORD ID
                    serializedSchema.fieldVersions.put(currentClass, f);
                    vFound = true;
                } else // JPA 1+ AVAILABLE?
                if (OObjectSerializerHelper.jpaVersionClass != null && f.getAnnotation(OObjectSerializerHelper.jpaVersionClass) != null) {
                    // RECORD ID
                    serializedSchema.fieldVersions.put(currentClass, f);
                    vFound = true;
                }
                if (vFound) {
                    // CHECK FOR TYPE
                    if (fieldType.isPrimitive())
                        OLogManager.instance().warn(OObjectSerializerHelper.class, "Field '%s' cannot be a literal to manage the Version", f.toString());
                    else if (fieldType != String.class && fieldType != Object.class && !Number.class.isAssignableFrom(fieldType))
                        OLogManager.instance().warn(OObjectSerializerHelper.class, "Field '%s' cannot be managed as type: %s", f.toString(), fieldType);
                }
                // JPA 1+ AVAILABLE?
                if (OObjectSerializerHelper.jpaEmbeddedClass != null && f.getAnnotation(OObjectSerializerHelper.jpaEmbeddedClass) != null) {
                    List<String> classEmbeddedFields = serializedSchema.embeddedFields.get(currentClass);
                    if (classEmbeddedFields == null)
                        classEmbeddedFields = new ArrayList<String>();
                    classEmbeddedFields.add(fieldName);
                    serializedSchema.embeddedFields.put(currentClass, classEmbeddedFields);
                }
            }
            registerCallbacks(currentClass);
        }
        if (automaticSchemaGeneration && !currentClass.equals(Object.class) && !currentClass.equals(ODocument.class)) {
            ((OSchemaProxyObject) db.getDatabaseOwner().getMetadata().getSchema()).generateSchema(currentClass, db);
        }
        String iClassName = currentClass.getSimpleName();
        currentClass = currentClass.getSuperclass();
        if (currentClass == null || currentClass.equals(ODocument.class))
            // POJO EXTENDS ODOCUMENT: SPECIAL CASE: AVOID TO CONSIDER
            // ODOCUMENT FIELDS
            currentClass = Object.class;
        if (!currentClass.equals(Object.class)) {
            OClass oSuperClass;
            OClass currentOClass = oSchema.getClass(iClassName);
            if (!oSchema.existsClass(currentClass.getSimpleName())) {
                OSchema schema = oSchema;
                if (Modifier.isAbstract(currentClass.getModifiers())) {
                    oSuperClass = schema.createAbstractClass(currentClass.getSimpleName());
                } else {
                    oSuperClass = schema.createClass(currentClass.getSimpleName());
                }
                reloadSchema = true;
            } else {
                oSuperClass = oSchema.getClass(currentClass.getSimpleName());
            }
            if (!currentOClass.getSuperClasses().contains(oSuperClass)) {
                currentOClass.setSuperClasses(Arrays.asList(oSuperClass));
                reloadSchema = true;
            }
        }
    }
    if (reloadSchema) {
        oSchema.save();
        oSchema.reload();
    }
}