About URL connection

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Tutorial
4

Step 3: Add a Main Class [2018-10-20]

class Main { public static void main(String[] args) { // Open a database connection ... connection: em.close(); emf.close(); } } The main method creates an ObjectDB
Tutorial
4

Step 3: Add a Main Class

connection // (create a new database if it doesn't exist yet): EntityManagerFactory ... the database connection: em.close(); emf.close(); } } The main method creates
Tutorial
4

Step 3: Add a Main Class [2011-02-11]

) { // Open a database connection // (create a new database if it doesn't exist ... ); } // Close the database connection: em.close(); emf.close
Tutorial
4

Step 3: Add a Main Class

[] args) { // Open a database connection // (create a new database if it doesn't exist ... ); } // Close the database connection: em.close(); emf.close
Forum
4

Failover from Master to Slave

to the replicated database by changing connection url, i.e. by connecting to the replicated database using its own url. In that case, the new connection is an ordinary connection that is not limited to read ... to the replicated database url, switching the master and slave roles (in order to replicate changes in
Forum
4

Server vs embedded mode in multi-instance scenario

the full connection URL that i should pass to the persistance.xml to connect ODB server started in embedded ... . the full client-server connection url should be "objectdb://host:port/" with no path. host ... connections from multiple instances. But from what I can tell, there will be about a 50% performance drop
Result
3

[ODB1] Chapter 5 - JDO Connections

PersistenceManager instance. The PersistenceManagerFactory's connection url specifies the location of the database ... one. If a database file is not found at the specified connection url, ObjectDB tries to create a new ... The PersistenceManagerFactory interface represents a factory of database connections. Its main role
JPA Doc
3

getJarFileUrls()

Method javax.persistence.spi.PersistenceUnitInfo List<URL> getJarFileUrls() Returns a list of URLs ... for managed classes of the persistence unit. Each URL corresponds to a jar-file element in the persistence.xml file. A URL will either be a file: URL referring to a jar file or referring to a directory
JPA Doc
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
Forum
3

Replication issue, Replayer failing due to NullPointerException.

> <connection port="2122" max="100" /> url ... cannot get an EntityManager connection to the slave DB though. I've tried stopping both servers and copying ... " /> <url-history size="50" user="true" password="true