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Tutorial
12

Step 3: Define a Spring DAO Component

= em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest.class); return ... Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right
Tutorial
12

Step 3: Define a Spring DAO Component

( "SELECT g FROM Guest g ORDER BY g.id", Guest.class); return query ... Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right
Forum
12

A lot of ENT and SIV instances which are not cleared by GC

through mapped by to-many relationships. Please check the new build. If you still get the exception we may need a test case that demonstrate the issue in order to explore it further. Thanks, no exception
JDO Doc
11

javax.jdo.Query

declarations separated by commas. Each ordering declaration is the name of the field on which to order ... with a PersistenceManager. Multiple queries might be executed simultaneously by different threads ... , import statements, ordering and grouping specifications, result and result class, the range
Manual
11

Deleting JPA Entity Objects

Existing entity objects can be deleted from the database either explicitly by invoking the remove method or implicitly as a result of a cascade operation. Explicit Remove In order to delete an object ... back and not committed the object is not deleted. An IllegalArgumentException is thrown by remove
Manual
11

SSL Configuration

") specifies if SSL is used. As shown above, SSL is disabled by default. It could be enabled ... . This file is generated from the Keystore file by omitting the private key (it still contains ... of the client machine by the server is also required a Keystore file (which might be different from
Manual
11

ObjectDB Developer's Guide

(SQL, JDBC, ORM or JPA) is not required in order to follow this guide, but a strong background ... on practical issues in order to make the reader proficient in a short time. After reading this guide you may want to extend your knowledge of JPA by reading a book on JPA.  
FAQ
10

What is the Java Persistence API (JPA)?

) is that in JPA data is represented by classes and objects rather than by tables and records as in JDBC ... programming. A JPA implementation (sometimes referred to as a JPA provider) is needed in order ... Persistence API (JPA). By interacting with ObjectDB using standard JPA you can keep your application
Manual
9

Strings in JPQL and Criteria Queries

). To match an actual underscore or percent character it has to be preceded by an escape character ... to 'UK'. By default, space characters are removed, but any other character can also be specified: TRIM ... ); As demonstrated above, most methods are overloaded in order to support optional arguments
FAQ
9

What are the main benefits of using ObjectDB?

By using ObjectDB you can reduce development time and costs and improve your application ... fields can be stored by ObjectDB simply as part of the containing object. Relational databases lack that ability and require multiple tables, multiple records and join operations in order to support