About JPA

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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
FAQ
131

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
Manual
131

CRUD Database Operations with JPA [2011-02-11]

Given an EntityManager, em, that represents a JPA connection to the object database, we can use ... persisting objects in the database in more detail. JPA Queries with JPQL We can get the number of Point ... COUNT(p) FROM Point p") instructs JPA to count all the Point objects in the database. If you have used
Result
131

ObjectDB - Object Database for Java (JPA/JDO) [2017-10-19]

for developing Java database applications using the Java Persistence API (JPA). It is the first persistence solution that combined a powerful database with JPA support in one product, saving the need to integrate an external JPA ORM with a database. ObjectDB is an extremely easy to use pure Java Object
Manual
131

CRUD Database Operations with JPA

Given an EntityManager, em, that represents a JPA connection to the object database, we can use ... persisting objects in the database in more detail. JPA Queries with JPQL We can get the number of Point ... COUNT(p) FROM Point p") instructs JPA to count all the Point objects in the database. If you have used
Manual
131

JPA Entity Fields

either the Java transient modifier (which also affects serialization) or the JPA @Transient annotation ... and maps of entity types. Basic - for any other persistable type. In JPA only Basic is optional ... of these annotations, so they are useful only for classes that are also in use with an ORM JPA
Manual
131

JPA Persistable Types [2019-08-10]

. ObjectDB supports all the JPA persistable types, which are: User defined classes - Entity classes ... ; @Entity public class MyEntity { } Entity Class Requirements A portable JPA entity class ... Superclasses In JPA, classes that are declared as mapped superclasses have some of the features of entity
Manual
131

JPA Persistable Types [2019-08-10]

. ObjectDB supports all the JPA persistable types, which are: User defined classes - Entity classes ... ; @Entity public class MyEntity { } Entity Class Requirements A portable JPA entity class ... Superclasses In JPA, classes that are declared as mapped superclasses have some of the features of entity
Manual
131

JPA Persistable Types

. ObjectDB supports all the JPA persistable types, which are: User defined classes - Entity classes ... ; @Entity public class MyEntity { } Entity Class Requirements A portable JPA entity class ... Superclasses In JPA, classes that are declared as mapped superclasses have some of the features of entity
Manual
131

JPA Persistable Types [2016-08-06]

. ObjectDB supports all the JPA persistable types, which are: User defined classes - Entity classes ... ; @Entity public class MyEntity { } Entity Class Requirements A portable JPA entity class ... Superclasses In JPA, classes that are declared as mapped superclasses have some of the features of entity