About settings

111-120 of 200Refresh
Manual
7

JPA Persistence Unit

A JPA Persistence Unit is a logical grouping of user defined persistable classes (entity classes, embeddable classes and mapped superclasses) with related settings. Defining a persistence unit is optional when using ObjectDB, but required by JPA. persistence.xml Persistence units are defined in
Manual
7

Online Backup

backup root directory can be specified by setting the target parameter before executing the backup
Manual
7

Running JPA Queries

("UPDATE Country SET area = 0").executeUpdate(); A TransactionRequiredException is thrown
Tutorial
7

Step 1: Create a Java Project

qualified class name is set (you may use copy & paste). Click the Finish button to create
Tutorial
7

Step 2: Entity Class and Persistence Unit

+ ")"; } } A default JPA persistence unit (with default settings) was generated in a persistence.xml
Tutorial
7

Step 2: Entity Class and Persistence Unit

entity class will represents guests in the database. We also need to configure JPA by setting a META-INF
Tutorial
7

Step 2: Entity Class and Persistence Unit

+ ")"; } } A default JPA persistence unit (with default settings) was generated in a persistence.xml file
Tutorial
7

Step 2: Entity Class and Persistence Unit

guests in the database. We also need to configure JPA by setting a META-INF/persistence.xml file
Tutorial
7

Step 3: Create an ObjectDB Data Source

. The next step is using this data source to create a data set for the BIRT report.
Tutorial
7

Step 5: Add a JSP Page

the request's "guests" attribute that is set by the servlet in the previous step). The next step