About JPA

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Manual
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JPA Persistence Unit

A JPA Persistence Unit is a logical grouping of user defined persistable classes (entity classes ... is optional when using ObjectDB, but required by JPA. persistence.xml Persistence units are defined in ... to instantiate an EntityManagerFactory in JPA (as explained in the JPA Overview section) requires
Manual
75

JPA Query API

Queries are represented in JPA 2 by two interfaces - the old Query interface, which was the only interface available for representing queries in JPA 1, and the new TypedQuery interface that was introduced in JPA 2. The TypedQuery interface extends the Query interface. In JPA 2 the Query interface
Manual
75

JPA Criteria API Queries

The JPA Criteria API provides an alternative way for defining JPA queries, which is mainly useful for building dynamic queries whose exact structure is only known at runtime. JPA Criteria API vs JPQL JPQL queries are defined as strings, similarly to SQL. JPA criteria queries, on the other hand
Tutorial
75

JPA Tutorials [2011-02-09]

The following tutorials demonstrate how to develop database driven applications using JPA and the ObjectDB ODBMS (Object Oriented Database Management System). Console JPA Tutorial The Quick Start tutorial demonstrates how to use ObjectDB and JPA in a console application: Quick Start with JPA
Tutorial
75

JPA Tutorials

The following tutorials demonstrate how to develop database driven applications using JPA and the ObjectDB ODBMS (Object Oriented Database Management System). Console JPA Tutorial The Quick Start tutorial demonstrates how to use ObjectDB and JPA in a console application: Quick Start with JPA
Result
75

ObjectDB - Object Database for Java (JPA/JDO) [2017-10-18]

it is the bottleneck in most applications. ObjectDB is extremely fast and much faster than any other JPA solution ... is complex.   See JPA benchmark results... Reduce development time. Improve productivity. ObjectDB ... API (JPA). It is the first persistence solution that combined a powerful database with JPA support
Result
75

ObjectDB - Object Database for Java (JPA/JDO) [2018-10-30]

it is the bottleneck in most applications. ObjectDB is extremely fast and much faster than any other JPA solution ... is complex.   See JPA benchmark results... Reduce development time. Improve productivity. ObjectDB ... API (JPA). It is the first persistence solution that combined a powerful database with JPA support
Result
75

ObjectDB - Object Database for Java (JPA/JDO) [2018-11-03]

it is the bottleneck in most applications. ObjectDB is extremely fast and much faster than any other JPA solution ... is complex.   See JPA benchmark results... Reduce development time. Improve productivity. ObjectDB ... API (JPA). It is the first persistence solution that combined a powerful database with JPA support
Result
75

ObjectDB - Object Database for Java (JPA/JDO)

it is the bottleneck in most applications. ObjectDB is extremely fast and much faster than any other JPA solution ... is complex. See JPA benchmark results... Reduce development time. Improve productivity. ObjectDB ... API (JPA). It is the first persistence solution that combined a powerful database with JPA support in
FAQ
74

What is the Java Persistence API (JPA)?

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) is that in JPA data is represented by classes and objects rather than by tables and records as in JDBC