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Server Configuration

other elements in the configuration file, particularly the users"><users> ... ="$objectdb/db-files" />   <!--   <replication url="objectdb://localhost/my.odb;user ... ://localhost/my.odb;user=admin;password=admin" /> The <replication>

JPA / JDO Class Enhancer

the byte code of compiled classes after compilation. Enhancement is mainly for user-defined persistable ... using the get and set methods). If you follow this practice only user defined ... ;dir>  :  path to input user classes -pu <name> :  persistence unit name -s

General Settings and Logging

="0" />   <url-history size="50" user="true" password="true" /> <log path ... -history> element   <url-history size="50" user="true ... >0 as the maximum list size. The user attribute 

Locking in JPA

to the same data by two concurrent users. Locking in ObjectDB (and in JPA) is always at the database ... do not match, indicating that the object has been modified by another user (using another user (which is represented by another EntityManager instance) currently holds

SELECT clause (JPQL / Criteria API)

expressions that represent anything but entity objects (e.g. values of system types and user defined ... _constructor_expressions">user defined result objects are also supported by the JPA criteria query ... results as instances of a user defined class (

JPA Persistence Unit

A JPA Persistence Unit is a logical grouping of user defined persistable classes ... ; <property name="javax.persistence.jdbc.user" value="admin"/> <property name ... > Managed Persistable Classes JPA requires registration of all the user defined

Setting and Tuning of JPA Queries

committing the transaction (but not to users of other EntityManager instances). JPA ... objects by multiple users. JPA 2 adds support for

[ODB1] Chapter 6 - Persistent Objects

the use of makePersistent(...) to instances of user defined persistent classes ... , system types are embedded and user defined types (like the Address instance above) are not ... of user defined persistent classes are not (more details are provided in

[ODB1] Chapter 4 - JDO Metadata

>java.util.Date. Collections, arrays and references to user defined classes are excluded by ... , for all fields except fields whose type is a user defined persistent classes or java.lang.Object. To use embedded objects for fields of user defined persistent classes, a metadata

[ODB1] Chapter 3 - Persistent Classes

Persistent Classes are user defined classes whose instances can be stored in a database ... applications, however, should only store instances of user defined persistent classes in ... specification (including *? wildcards) <options> include: -cp classpath for input user