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> and TypedQuery objects obtained from it will throw the Object" title="Method of javax.persistence.EntityManager">contains (Object ... > - a criteria query object

of an embeddable class can only be stored in the database as embedded objects, i.e. as part of a containing entity object. A class is declared as embeddable by marking it with the objects and do not require separate space allocation and separate store

automatic object IDs for entity objects with no primary key fields defined (as explained in ... for every new entity object. These generated values are unique at the database level and are never recycled, as ... entity object. The difference is that a separate identity generator is managed per type hierarchy

denominator of all the result objects is Object. When a more specific result type ... the above code, the same JPQL query which retrieves all the Country objects in ... is known (the query returns only Country objects), a TypedQuery is preferred

> The position of the first result the query object was set to retrieve ... of the first result the query object was set to retrieve. Returns 0 if setFirstResult was not applied to the query object.

with databases) is that in JPA data is represented by classes and objects rather than by tables and records as in JDBC. Using plain old Java objects (POJO) to represent persistent data can significantly ... . These implementations are Object Relational Mapping (ORM) tools. The mapping bridges between

>that retrieves all the Country objects in the database: setLockMode and Object ... , including the definition of named queries. But, because mapping files are useful mainly for Object

programming easier and faster. The ability to store ordinary objects in the database directly ... >ObjectDB is especially designed to store and manage graphs of objects efficiently. That can accelerate the execution time of object oriented applications significantly. For instance, collection and map

>Class JDOHelper java.lang.Object ... ="member_5040" class="member method"> Object Object" title="Static Method of javax.jdo.JDOHelper

An object ID is a combination of a persistence capable class and a primary key. It provides a unique representation of a persistent object. The following classes serve as ... > Object IDs are used