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 and type versioning. Class hierarchy changes are handled automatically. New added fields are handled automatically. Removed fields are handled automatically. Most field type changes are handled ... types , fields and properties . Object Model & Data Types ObjectDB supports persisting complex Java

Literals in JPQL, as in Java, represent constant values. JPQL supports various types of literals ... (e.g. 'abc' ), enum literals (e.g. mypackage.MyEnum.MY_VALUE ) and entity type literals (e.g. Country ... the ordinary Java syntax for enum values, but the fully qualified name of the enum type

JPA Interface Type Type Parameters: - The type of the represented object or attribute Instances of the type Type represent persistent object or attribute types . Since: JPA 2.0 Public Methods Class getJavaType () Return the represented Java type . Return: Java type Since: JPA 2.0 Type

.metamodel. Type $PersistenceType Since: JPA 2.0 Enum Constants BASIC Basic type Since: JPA 2.0 EMBEDDABLE ... Since: JPA 2.0 Public Static Enum Methods: Type $PersistenceType[] values () Returns an array containing the constants of this enum type , in the order they are declared. This method may be used to iterate

(   String name,    Class   type ) Return the single-valued attribute of the managed type that corresponds to the specified name and Java type . Parameters: name - the name of the represented attribute type - the type of the represented attribute Return: single-valued

getDeclaredSingularAttribute (   String name,    Class   type ) Return the single-valued attribute declared by the managed type that corresponds to the specified name and Java type . Parameters: name - the name of the represented attribute type - the type of the represented attribute Return

;attributeName,    Class   type ) Add a node to the graph that corresponds to a map key that is a managed type with inheritance. This allows for construction of multi-node entity graphs that include related managed types . Subclass subgraphs will include the specified attributes

;attributeName,    Class   type ) Add a node to the graph that corresponds to a managed type ... subgraphs Parameters: attributeName - name of the attribute type - entity subclass Return: subgraph ... of this managed type . IllegalArgumentException - if the attribute's target type is not a managed type

object, regardless of its type . Instances of persistent classes can become persistent later, as ... reachability is applicable to all persistent types , including system types , such as String and ArrayList (a complete list of persistent types is available at section 3.2 ). ObjectDB provides an additional

JDO Annotation Attribute in javax.jdo.annotations.Persistent Class[] types default {} Types of the member. Used when the declared member type is a supertype of the actual type that is stored in the member. For example, the declared member type might be an interface type that must contain an object of a concrete type when used for persistence. Since: JDO 2.1