18 | Replication issue, Replayer failing due to NullPointerException. path and where all the DB's are on the master. I cannot get an EntityManager connection to the slave DB ... " /> <url-history size="50" user="true" password="true" /> <log path="/var/log/test/" max="10mb ... " /> </entities> <schema> </schema> <server> <connection port="2122" max="100" /> <data path="/usr |
17 | Eclipse plugin problem (using ObjectDB as a separate bundle).callsite.AbstractCallSite.call(AbstractCallSite.java:112) at com.epimss.lab.db.Connection.store(Connection.groovy:261) at com.epimss.lab.ui.toxicology.TherapeauticDrugScreenRqstWizard.performFinish ... .getRequestDateAndNumber() ); new Connection( ISharedPreference.DB_OBJECTDB, "admin", "admin |
3 | getPersistenceUnitRootUrl()Method javax.persistence.spi.PersistenceUnitInfo URL getPersistenceUnitRootUrl() Returns the URL ... is rooted in the WEB-INF/classes directory, this will be the URL of that directory.) The URL will either be a file: URL referring to a jar file or referring to a directory that contains an exploded jar |
3 | Is ObjectDB scalable? What are its limitations?. Up to 9,223,372,036,854,775,808 entity objects per database file. Unlimited database connections (limited by operating system resources). |
3 | CRUD Database Operations with JPAGiven an EntityManager, em, that represents a JPA connection to the object database, we can use it to store, retrieve, update and delete database objects. Storing New Entity Objects The following code fragment stores 1,000 Point objects in the database: em.getTransaction().begin(); for (int |
0 | Step 3: Define an EJB Session Bean class GuestDao { // Injected database connection: @PersistenceContext private EntityManager |
0 | Step 3: Define a Spring DAO Component connection: @PersistenceContext private EntityManager em; // Stores a new guest |
0 | Step 3: Define a Spring DAO Component.annotation.Transactional; @Component public class GuestDao { // Injected database connection |
0 | javax.jdo.datastore.JDOConnectionjavax.jdo.datastore Interface JDOConnection The underlying connection that is being used by a javax.jdo.PersistenceManager. Since: JDO 2.0 void close() Returns this connection to the JDO implementation. Returns this connection to the JDO implementation. The object must be returned to the JDO |
0 | [ODB1] Chapter 2 - A Quick Tour connection: 20 Properties properties = new Properties(); 21 properties |
