Fast Object Database for Java - with JPA/JDO support

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javax.persistence Annotation ExcludeDefaultListeners Target: Classes Specifies that the invocation of default listeners is to be excluded for the entity class (or mapped superclass) and its subclasses. Since: JPA 1.0 Learn how to define and use entity listeners in Chapter 3 of the ObjectDB/JPA


Annotation Element javax.jdo.annotations.Persistent String embeddedElement Whether the elements of this member are embedded. Returns: whether the elements of this member are embedded Default value: "" Since: JDO 2.1


javax.persistence.criteria Interface Predicate Superinterfaces: Expression, Selection, TupleElement Subinterfaces: In The type of a simple or compound predicate: a conjunction or disjunction of restrictions. A simple predicate is considered to be a conjunction


Annotation Element javax.jdo.annotations.Persistent String embedded Whether this member is embedded. Returns: whether this member is embedded Default value: "" Since: JDO 2.1


javax.persistence.criteria Interface Root Superinterfaces: Expression, FetchParent, From, Path, Selection, TupleElement A root type in the from clause. Query roots always reference entities. Since: JPA 2.0 Learn how to use JPA criteria API's Root in Chapter 4


javax.persistence.criteria Interface PluralJoin Superinterfaces: Expression, FetchParent, From, Join, Path, Selection, TupleElement Subinterfaces: CollectionJoin, ListJoin, MapJoin, SetJoin The PluralJoin interface defines functionality that is common to joins


Annotation Element javax.jdo.annotations.Persistent IdGeneratorStrategy valueStrategy Value strategy to use to generate the value for this field or property (if any). Returns: the generated value strategy Default value: javax.jdo.annotations.IdGeneratorStrategy.UNSPECIFIED Since: JDO 2.1


javax.persistence Annotation JoinTable Target: Fields (including property get methods) Used in the mapping of associations. It is specified on the owning side of an association. A join table is typically used in the mapping of many-to-many and unidirectional one-to-many associations


Annotation Element javax.jdo.annotations.Persistent String dependentValue Whether the values of this member are dependent. Returns: whether the values of this member are dependent Default value: "" Since: JDO 2.1


javax.persistence.criteria Interface Selection Superinterfaces: TupleElement Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, SetJoin, Subquery The Selection

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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