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Persistence API (JPA) Java Data Objects ( JDO ) Using a standard Java API (JPA / JDO ) provides many benefits

cascade settings. The "auto" value functions as "true" when using JDO and as "false" when using JPA ... of either global or local setting) should be applied during commit and flush. Note: Both JPA and JDO

- JPQL / SQL Set 2 - Java / JDO Less Than Less Than or Equal To = Equal = == Not Equal ... its own notation (which is also in use by JDOQL, the JDO Query Language). ObjectDB supports both forms

API - managed only by standard Java APIs (JPA 2 / JDO 2). Extremely fast - faster than any other JPA / JDO product. Suitable for database files ranging from kilobytes to terabytes. Supports both Client

persistence solution for Java, based on the Java Persistence API (JPA) and the Java Data Objects ( JDO ) standards, since ObjectDB is the first object oriented database with built in support of JPA and JDO

JDO Class LongIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.LongIdentity This class is for identity with a single long field. Since: JDO 1.0 Public Constructors LongIdentity () Constructor only for Externalizable. Since: JDO 1.0 LongIdentity

JDO Class IntIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.IntIdentity This class is for identity with a single int field. Since: JDO 1.0 Public Constructors IntIdentity () Constructor only for Externalizable. Since: JDO 1.0 IntIdentity (Class

JDO Class ByteIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.ByteIdentity This class is for identity with a single byte field. Since: JDO 1.0 Public Constructors ByteIdentity () Constructor only for Externalizable. Since: JDO 1.0 ByteIdentity

JDO Class CharIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.CharIdentity This class is for identity with a single character field. Since: JDO 1.0 Public Constructors CharIdentity () Constructor only for Externalizable. Since: JDO 1.0

JDO Class ShortIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.ShortIdentity This class is for identity with a single short field. Since: JDO 1.0 Public Constructors ShortIdentity () Constructor only for Externalizable. Since: JDO 1.0

JDO Class InstanceLifecycleEvent java.lang.Object ∟  java.util.EventObject ∟  javax. jdo ... NotSerializableException. Since: JDO 2.0 Public Constructors InstanceLifecycleEvent (Object source, int ... - the instance that triggered the event type - the event type Since: JDO 2.0 InstanceLifecycleEvent

JDO Interface InstanceCallbacks Super Interfaces: ClearCallback , DeleteCallback , LoadCallback ... implements this interface. For JDO 2.0, InstanceCallbacks has been refactored to extend ... of the other callbacks. For backward compatibility with JDO 1.0, the InstanceCallbacks interface is preserved

JDO Class ObjectIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.ObjectIdentity This class is for identity with a single Object type field. Since: JDO 1.0 Public Constructors ObjectIdentity () Constructor only for Externalizable. Since: JDO 1.0

JDO Class StringIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ∟  javax. jdo .identity.StringIdentity This class is for identity with a single String field. Since: JDO 1.0 Public Constructors StringIdentity () Constructor only for Externalizable. Since: JDO 1.0

JDO Enum ObjectState java.lang.Object ∟  java.lang.Enum ∟  javax. jdo .ObjectState This class defines the object states for JDO instances. Since: JDO 1.0 Enum Constants DETACHED_CLEAN Since: JDO 1.0 DETACHED_DIRTY Since: JDO 1.0 HOLLOW_PERSISTENT_NONTRANSACTIONAL Since: JDO 1.0 PERSISTENT

JDO Interface DataStoreCache Many JDO implementations allow instances to be cached in a second ... standardizes this behavior. Since: JDO 2.0 Public Methods void evict (Object oid) Evict ... . Since: JDO 2.0 void evictAll () Evict the parameter instances from the second-level cache

JDO Annotation Join Target: ElementType.TYPE, ElementType.FIELD, ElementType.METHOD Implemented ... ". Since: JDO 2.1 Public Annotation Attributes String column default "" Name of the column in the join table. Since: JDO 2.1 Column [] columns default {} Detail definition of the join column(s

JDO Class I18NHelper java.lang.Object ∟  javax. jdo .spi.I18NHelper Helper class ... to a bundle, as in I18NHelper msg = I18NHelper.getInstance("javax. jdo .Bundle"); This call uses the class ... JDOFatalInternalException (msg.msg("ERR_NoMetadata", cls.getName())); Since: JDO 1.0 Public Methods

JDO Exception JDOFatalInternalException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOFatalException ∟  javax. jdo .JDOFatalInternalException This class represents errors in

JDO Exception JDOUserCallbackException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDOUserException ∟  javax. jdo .JDOUserCallbackException

JDO Exception JDOObjectNotFoundException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDODataStoreException ∟  javax. jdo

JDO Annotation PersistenceCapable Target: ElementType.TYPE Implemented Interfaces: Annotation Annotation for whether the class or interface is persistence-capable. Since: JDO 2.1 Public Annotation ... . Since: JDO 2.2 String catalog default "" Catalog to use for persisting this class or interface. Since: JDO

JDO Exception JDOFatalUserException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOFatalException ∟  javax. jdo .JDOFatalUserException This class represents user errors

JDO Exception JDOFatalDataStoreException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOFatalException ∟  javax. jdo .JDOFatalDataStoreException This class represents data store

JDO Annotation Column Target: ElementType.FIELD, ElementType.METHOD Implemented Interfaces: Annotation Annotation for a column in the database. Corresponds to the xml element "column". Since: JDO 2 ... to be inserted. Since: JDO 2.1 String defaultValue default "" Default value for this column

JDO Exception JDOUserException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDOUserException This class represents user errors that can possibly

JDO Exception JDOOptimisticVerificationException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOFatalException ∟  javax. jdo .JDOFatalDataStoreException ∟  javax. jdo

JDO Exception JDODataStoreException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDODataStoreException This class represents data store exceptions

JDO Class JDOPermission java.lang.Object ∟  java.security.Permission ∟  java.security.BasicPermission ∟  javax. jdo .spi.JDOPermission The JDOPermission class is for operations that are reserved for JDO implementations and should not be called by other code. A JDOPermission is a named

JDO Exception JDOUnsupportedOptionException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDOUserException ∟  javax. jdo

JDO Exception JDONullIdentityException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDOUserException ∟  javax. jdo .JDONullIdentityException

JDO Exception JDODetachedFieldAccessException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDOUserException ∟  javax. jdo

JDO Class SingleFieldIdentity java.lang.Object ∟  javax. jdo .identity.SingleFieldIdentity ... one persistent field in the class to represent identity. In this case, the application can use a standard JDO class instead of creating a new user-defined class for the purpose. Since: JDO 1.0 Public

JDO Interface JDOConnection The underlying connection that is being used by a javax. jdo .PersistenceManager . Since: JDO 2.0 Public Methods void close () Returns this connection to the JDO implementation. The object must be returned to the JDO implementation prior to calling any JDO method or

JDO Exception JDOReadOnlyException java.lang.Object ∟  java.lang.Throwable ∟  java.lang.Exception ∟  java.lang.RuntimeException ∟  javax. jdo .JDOException ∟  javax. jdo .JDOCanRetryException ∟  javax. jdo .JDOUserException ∟  javax. jdo .JDOReadOnlyException This class

JDO Method in javax. jdo .PersistenceManager Object getObjectId (   Object pc ) The ObjectId returned by this method represents the JDO identity of the instance. The ObjectId is a copy (clone) of the internal state of the instance, and changing it does not affect the JDO identity

JDO Method in javax. jdo .PersistenceManager Object getObjectById (   Object oid ... the cache with the specified JDO identity. The oid parameter object might have been returned by ... in the cache with the same JDO identity as the oid parameter, then this method returns

JDO Method in javax. jdo .spi.PersistenceCapable Object jdoGetObjectId () Return a copy of the JDO identity associated with this instance. Persistent instances of PersistenceCapable classes have a JDO ... that represents the JDO identity. Transient instances return null. The ObjectId may be serialized and later

JDO Static Method in javax. jdo .JDOHelper Object getObjectId (   Object pc ) Return a copy of the JDO identity associated with the parameter instance. Persistent instances of PersistenceCapable classes have a JDO identity managed by the PersistenceManager . This method returns a copy

JDO Enum IdGeneratorStrategy java.lang.Object ∟  java.lang.Enum ∟  javax. jdo .annotations.IdGeneratorStrategy Enumeration of the id generator strategy values. Since: JDO 2.1 Enum Constants IDENTITY Since: JDO 2.1 INCREMENT Since: JDO 2.1 NATIVE Since: JDO 2.1 SEQUENCE Since: JDO 2.1

JDO Method in javax. jdo .spi.StateInterrogation Object getObjectId (   Object pc ) Return a copy of the JDO identity associated with the parameter instance. Persistent instances of PersistenceCapable classes have a JDO identity managed by the PersistenceManager . This method returns

JDO Annotation ForeignKey Target: ElementType.TYPE, ElementType.FIELD, ElementType.METHOD ... "foreign-key". Since: JDO 2.1 Public Annotation Attributes Column [] columns default {} Columns that compose this foreign key. Since: JDO 2.1 String deferred default "" Whether this foreign key

JDO Annotation Query Target: ElementType.TYPE Implemented Interfaces: Annotation Annotation for a named query. Corresponds to the xml element "query". Since: JDO 2.1 Public Annotation Attributes Extension [] extensions default {} Vendor extensions. Since: JDO 2.1 String fetchPlan default

mode are discussed in Section 1.2 . Because the JDO API and the format of the database file ... the odbse.jar and jdo .jar files. By default, server.exe starts the server using the following

JDO Interface Extent Super Interfaces: Iterable Instances of the Extent class represent the entire ... of a particular class or interface Since: JDO 1.0 Public Methods void close (Iterator  it) Close ... the method iterator() on this Extent instance. Since: JDO 1.0 void closeAll () Close all Iterator s

JDO Enum ForeignKeyAction java.lang.Object ∟  java.lang.Enum ∟  javax. jdo .annotations.ForeignKeyAction Enumeration of the foreign-key delete/update action values. Since: JDO 2.1 Enum Constants CASCADE Since: JDO 2.1 DEFAULT Since: JDO 2.1 NONE Since: JDO 2.1 NULL Since: JDO 2.1 RESTRICT

JDO Class RegisterClassEvent java.lang.Object ∟  java.util.EventObject ∟  javax. jdo .spi ... registers itself with the JDOImplHelper . Since: JDO 1.0 Public Constructors RegisterClassEvent ... - the persistence-capable superclass Since: JDO 1.0 Public Methods byte[] getFieldFlags () Returns the flags

JDO Interface Sequence Implementations of this interface can be used to obtain sequences. The behavior with regard to the transaction and rollover behavior are defined in the metadata. Since: JDO 2 ... to allocate Since: JDO 2.0 Object current () Returns the current sequence value object

JDO Method in javax. jdo .datastore.JDOConnection void close () Returns this connection to the JDO implementation. The object must be returned to the JDO implementation prior to calling any JDO method or performing any action on any persistent instance that might require the JDO implementation

JDO Enum VersionStrategy java.lang.Object ∟  java.lang.Enum ∟  javax. jdo .annotations.VersionStrategy Enumeration of the version strategy values. Since: JDO 2.1 Enum Constants DATE_TIME Since: JDO 2.1 NONE Since: JDO 2.1 STATE_IMAGE Since: JDO 2.1 UNSPECIFIED Since: JDO 2.1 VERSION_NUMBER