ObjectDB Database Search

I have an entity with an embedded object - it works fine. Now I am trying to add an embedded object inside the first level embedded object - but it does not seem to store it and does not throw either... I was wondering if it was a limitation or not? has anyone tried this before? Thanks EKK

Speeding up the creation of Log entity objects related to other objects

to have my persistent objects be cached until the Java Virtual Machine (JVM) does a full Garbage Collection (GC ... to get rid of older objects before more recently accessed ones.  I attempted to use Java SoftReference to my large byte[] and instruct ObjectDB to use soft reference for its Level One (L1) object data

To access relational databases using the Java Persistence API (JPA) you will need an Object ... . The DataNucleus ORM implementation supports also the Java Data Objects (JDO) API. ObjectDB is a full featured standalone Object Database Management System (ODBMS) and not an ORM tool, so it is not intended and cannot be used to access other database management systems.

, if any, and such derivative works, in source code and object code form. b) Subject to the terms ... the Contribution of such Contributor, if any, in source code and object code form. This patent ... to distribute the Program in object code form under its own license agreement, provided that: a) it complies

that contains points in the plane. Each point is represented by an object with two int fields, x and y ... storing, retrieving, updating and deleting Point objects . This chapter contains the following sections ... with the ObjectDB object database. Given the simplicity of ObjectDB, that should be quick and easy even for a novice.

ObjectDB Software develops, markets and supports the ObjectDB Object -Oriented Database Management ... persistence solution for Java, based on the Java Persistence API (JPA) and the Java Data Objects (JDO) standards, since ObjectDB is the first object oriented database with built in support of JPA and JDO

The JPA Metamodel API, which is introduced in JPA 2.0, enables examining the classes, fields and properties of the persistent object model, similarly to the Java reflection API. The main interface ... ) in the persistent object model are represented by the following sets of interfaces and enum types

The JPA Metamodel API provides the ability to examine the persistent object model and retrieve details on managed classes and persistent fields and properties, similarly to the ability ... types  (which are referred to as managed types) in the persistent object model

is "true" or "false" ) specifies if lazy loading of entity objects content is enabled. Instantiating entity objects as hollow, and loading their persistent content lazily, when they are accessed

other JPA annotations are designated for Object Relational Mapping (ORM) JPA providers (for mapping between a relational database and an object model and for direct SQL queries): These ORM annotations are silently ignored by ObjectDB.

The JPA Query Language (JPQL) can be considered as an object oriented version of SQL. Users familiar with SQL should find JPQL very easy to learn and use. This chapter explains how to use JPQL as ... clauses are explained: ObjectDB also supports the Java Data Objects (JDO) Query Language (JDOQL

Removing ObjectDB evaluation restrictions (of 10 entity classes and 1,000,000 entity objects

and objects in a database file. The full edition of the Software (without the restrictions

order to support optional arguments and when applicable simple Java objects as well as criteria expressions.

. Up to 9,223,372,036,854,775,808 entity objects per database file. Unlimited database connections (limited by operating system resources).

Java numeric object : // Create path and parameter expressions: Expression path = country

Free License ObjectDB can be downloaded and used at no cost (including commercially)  with the restriction of a maximum of  10 entity classes and one million entity objects per database file. This could be useful for small projects, academic assignments, evaluation and learning

To store objects in an ObjectDB database using JPA we need to define an entity class: Right click ...   Finish to create the new entity class. A new class that should represent  Guest objects in ... is adding a Spring  DAO Component class that will manage Guest entity objects .

object is constructed and stored in the database. Processing is forwarded to a JSP page ... component to display the existing Guest objects . The returned ModelAndView object defines a target JSP

To store objects in an ObjectDB database using JPA we need to define an entity class: Open ... objects in the database was created in the project (under Source Packages guest). Use copy and paste ... as a JPA provider with the specified database url. The next step is adding a Spring DAO Component class that will manage Guest entity objects .

To store objects in an ObjectDB database using JPA we need to define an entity class: Open ... to create the new class. The new class should represent Guest objects in the database. Use copy ... ; The new class should represent Guest objects in the database. Besides the @Entity annotation

Operations on the database will be performed by an instance of a Data Access Object (DAO ... - for storing a new  Guest entity object in the database. getAllGuests - for retrieving all the existing  Guest objects from the database. By using Spring components we can move some work from

that has signed the guestbook is represented by a  Guest JPA entity object and all the  Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need

that has signed the guestbook is represented as Guest JPA entity object , and all Guest entity objects

To store objects in an ObjectDB database using JPA we need to define an entity class: Right click on the project in the [Package Explorer] window and select New Class . Enter tutorial as the package ... should represent Point objects in the database. Apart from the @Entity annotation and the id field

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the tutorial package node (in the [Projects] window ... objects in the database. Besides the @Entity annotation and the id field (and its annotations

the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database and stored in the request's "guest" attribute

. Every visitor that has signed the guestbook is represented by a Guest entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial

: persist - for storing a new  Guest entity object in the database. getAllGuests - for retrieving all the existing  Guest objects from the database. EJB classes are only supported by Java EE

is represented by a  Guest entity object and all the  Guest entity objects are stored in an ObjectDB

. Every visitor that has signed the guestbook is represented by a Guest JPA entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need

In this step we will add a main class to the project to store and retrieve Point objects from the database: Right click the tutorial package in the [Package Explorer] window and select New Class ... = emf.createEntityManager(); // Store 1000 Point objects in the database: em.getTransaction().begin(); for (int i = 0; i

In this step we will add code to the Main class (that was generated with the project) in order to store Point objects in the database and then retrieve them from the database. Use copy and paste ... .createEntityManager(); // Store 1000 Point objects in the database: em.getTransaction().begin(); for (int i = 0; i

by a Guest entity object and all the Guest entity objects are stored in an ObjectDB database

is managed by JPA. Every visitor that has signed the guestbook is represented by a Guest entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software

by a  Guest entity object and all the  Guest entity objects are stored in an ObjectDB

This tutorial demonstrates how to create and run a simple JPA application. The demonstrated application uses JPA to store and retrieve simple  Point entity objects , where each  Point ... . That is one of the benefits of ObjectDB, which is the only Object Database with built in support of JPA

the guestbook is represented by a Guest entity object and all the Guest entity objects are stored in

entity object is constructed and stored in the database. All the Guest entity objects are retrieved

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Projects] window ... on " + signingDate + ")"; } } The new class should represent Guest objects in the database

) class defines two methods: persist - for storing a new Guest entity object in the database. getAllGuests - for retrieving all the existing Guest objects from the database. EJB classes

that will be added in the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database and stored in the request's

(using a JSP form that is shown in the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database

1,000 objects . You can view the content of the database file by opening it in the ObjectDB Explorer

Started tutorial. The database file contains 1,000 Point entity objects , which represent points

The Guest entity objects will be stored in an ObjectDB database, which will be represented by a JPA's EntityManagerFactory instance with a global application scope. We have to register a ServletContextListener to perform initialization and cleanup operations: The database will be opened (or

This is the Eclipse version of the Quick Start with JPA tutorial. It demonstrates how to create and run a simple JPA application in Eclipse. The demonstrated application uses JPA to store and retrieve simple Point entity objects , where each Point has two persistent fields: x and y

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

The following types can be used to implement external listener classes for JDO lifecycle events: Listener objects can be bound to one or more persistence capable classes by invoking the addInstanceLifecycleListner method either at the PersistenceManagerFactory level or the PersistenceManager level.