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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specifying another name explicitly in the @Entity's name annotation element. Criteria Query Literals
The Java Persistence API (JPA) is a standard API for accessing databases from within Java applications. The main advantage of JPA over JDBC (the older Java API for interacting with databases ... Persistence API (JPA). By interacting with ObjectDB using standard JPA you can keep your application
The JPA Metamodel API provides the ability to examine the persistent object model and retrieve ... Metamodel API is Metamodel. It can be obtained either by the EntityManagerFactory's getMetamodel method or ... . Type Interface Hierarchy Types are represented in the Metamodel API by descendant interfaces
The following interfaces and enum types represent attributes (persistent fields and properties) in the JPA Metamodel API: See the Metamodel Attribute Interface Hierarchy section for more details and examples.
The following interfaces and enum represent types in the JPA Metamodel API: See the Metamodel Type Interface Hierarchy section for more details and examples.
All about ObjectDB API Reference in Java/JPA database - explanations, examples, references, links and related information.
All about ObjectDB APIs in Java/JPA database - explanations, examples, references, links and related information.
. "SELECT c FROM Country"). Criteria Query API Building dynamic queries with a structure that is known ... concatenating JPQL strings into a valid complete JPQL query. JPA 2 introduced the JPA Criteria Query API, as ... instance. Building a dynamic query using the criteria API is managed by the CriteriaQuery interface
how to define queries using the criteria API in Chapter 4 of the ObjectDB/JPA manual. AbstractQuery<T ... javax.persistence.criteria Interface CriteriaQuery<T> Superinterfaces: AbstractQuery<T ... on the specification of the type of the criteria query object created as well as the argument to the multiselect method
You can use ObjectDB with either the Java Persistence API (JPA) or the Java Data Objects (JDO) API ... API, and if necessary, switch to JDO as a secondary API for special additional features that are supported only by JDO. Selecting the more popular API leads to more portable application and extends