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WHERE clause (JPQL / Criteria API)

of the where method always uses AND. Therefore, using OR requires building an OR expression ... /where_Expression_">where(      cb.or_Expression__Expression_">or(          cb.

Query Parameters in JPA

/criteria/ParameterExpression">ParameterExpression or its super interface Parameter) rather than by names or numbers. or a combination of date and time, as

Deleting JPA Entity Objects

the remove method or implicitly ... of an entity class or if it is a detached entity. A CascadeType.REMOVE (or

Posting Sample Code

To demonstrate a technical question or an issue - you may have to provide a NullPointerException or ClassCastException) is thrown by ObjectDB - posting the full stack ... should have a no-arg public or protected constructor, An entity class must be a top level class

ObjectDB Object Database Features

, and most other OS with Java support. Java 8 or higher Tested ... with some experience with Hibernate, TopLink, EclipseLink, OpenJPA, JPOX or DataNucleus could start using ... - multiple @Id fields or a @EmbeddedId field.

javax.persistence.criteria.CriteriaQuery

must be eliminated from the query result or whether they must be retained or ... that corresponds to the restriction(s) over the grouping items, or null if no restrictions

javax.persistence.TypedQuery

> Execute an update or delete statement. Execute an update or delete statement. the number of entities updated or deleted

Eclipse/JPA Java EE Tutorial

you will need the following software: Java JDK (6.0 or above). Eclipse IDE for Java EE Developers. GlassFish Server 3.0.1 (or above). The last ... : ObjectDB 2.3.7_04 or later is required if Glassfish 3.1.2 (or later

NetBeans/JPA Java EE Tutorial

>For this tutorial you will need the following software: Java JDK (6.0 or above). NetBeans - Java or All bundle The last version of ObjectDB (just or later is required if Glassfish 3.1.2 (or later) is used.

javax.jdo.PersistenceManager

" title="Interface in javax.jdo">PersistenceManagerFactory (recommended) or by ... >s, or might be garbage collected, at the option of the JDO implementation. Before being used ... throws JDOUserException if the instance is transient or is managed by