About URL connection

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Tutorial
6

Step 2: Entity Class and Persistence Unit

Manual
6

JPA Persistence Unit

>
Tutorial
6

Step 6: Set the Spring XML

> spring <url-pattern>*.htmlurl-pattern> 30
Tutorial
6

Step 2: Entity Class and Persistence Unit

.objectdb.jpa.Provider
Tutorial
6

Step 1: Install BIRT and ObjectDB Driver

> Install New Software... In the [Work with] field enter the BIRT update site url. http://download.eclipse ... > Install New Software... In the [Work with] field enter the ObjectDB update site url: http://www
Tutorial
6

Step 2: Entity Class and Persistence Unit

Tutorial
6

Step 6: Set the Spring XML

-mapping> spring <url-pattern>*.htmlurl-pattern>
JPA Doc
6

javax.persistence.spi.PersistenceUnitInfo

any classes, resources, or open URLs. Returns ClassLoader that the provider may use to load any classes, resources, or open URLs. Returns: ClassLoader that the provider may use to load any classes, resources, or open URLs Since: JPA 1.0 List<URL> getJarFileUrls() Returns a list of URLs for the jar
Forum
5

Connection is closed (error 526)

. Exception in thread "main" [ObjectDB 2.2.7_08] javax.persistence.PersistenceException Connection ... (testNodes.java:308) Caused by: com.objectdb.o.UserException: Connection is closed at com.objectdb.o.MSG ... .PersistenceException Connection is closed (error 526) at com.objectdb.jpa.JpaQuery.getResultList(JpaQuery.java:633
Forum
5

Connections pool

Hi! Does ObjectDB keeps and reuses a pool of connections as MySQL JDBC driver does? I mean ... instance manages a pool of connections and reuses them when it creates new EntityManager instances. By default the maximum connection pool size is 50. You can change it in the persistence.xml file