About Object Database

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Forum
16

Best practice: Database update/migration of embedded databases in products

is now held otherwise. The product store user data in the ObjectDB-Database. Example: V1.0: EntityPerson ... city;}     DB3: [name=”Max Mustermann”; zip=”26135”; city=”Oldenburg”] How can we load the Database ... -> V2.0 directly, and you make sure that on upgrade all the old objects are converted and stored in
Tutorial
16

Step 3: Define an EJB Session Bean

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 are only supported by Java EE ... Operations on the database will be performed by an instance of a session bean (EJB) class
Tutorial
16

Step 3: Define an EJB Session Bean

the database. getAllGuests - for retrieving all the existing Guest objects from the database. EJB classes ... Operations on the database will be performed by an instance of a session bean (EJB) class ... ; @Stateless public class GuestDao { // Injected database connection
Manual
15

JPA Query API

, the same JPQL query which retrieves all the Country objects in the database is represented by both q1 ... results and the lowest known common denominator of all the result objects is Object. When a more specific ... only Country objects), a TypedQuery is preferred. There is another advantage of using TypedQuery in
Result
15

Company

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
Manual
14

Query Parameters in JPA

) The following method retrieves a Country object from the database by its name: public Country ... ("name", name).getSingleResult(); } The WHERE clause reduces the query results to Country objects ... other query elements) are represented by objects (of type ParameterExpression or its super interface
Forum
14

Soft Reference Object Cache Recommendation

size limit being exceeded before the post attempt.  =(  ) I desire to have my persistent objects ... 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 cache.  I disable the L2
Forum
14

Time Sequence Object Command DB

We (www.s2ssystems.com) have a time-sequential object command database.  I would like ... commands are generally used to trigger creation of transient objects.  The database can be branched ... again that the database is not an object database, but rather a command database.  You can of course
Issue
14

each 1-2 days objects on some objectdb level lock/block each other

objects and updates by type per minute), etc. a link for downloading the up to date 60GB database ... queries without any object manipulation in these threads we how have compiled with the 02 version ... (0x00000000bc88c318) is related to reading from the database file using the new "objectdb.temp.concurrent
Tutorial
13

Step 2: Define a JPA Entity Class

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New ... name + " (signed on " + signingDate + ")"; } } The new class should represent Guest objects in the database. Besides the @Entity annotation and the id field (and its annotations) - the Guest