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6

Paths and Types in JPQL and Criteria API

type method. For example, the following criteria expression checks if the type of a specified entity e
6

Working with JPA Entity Objects

soft references instead of weak references. The contains method can check if a specified entity object
3

find(entityClass, primaryKey, lockMode, properties)

and the entity has a version attribute, the persistence provider must perform optimistic version checks when obtaining the database lock. If these checks fail, the OptimisticLockException will be thrown ... - if the optimistic version check fails PessimisticLockException - if pessimistic locking fails
3

find(entityClass, primaryKey, lockMode)

must perform optimistic version checks when obtaining the database lock. If these checks fail ... OptimisticLockException - if the optimistic version check fails PessimisticLockException - if pessimistic locking fails
1

Java EE 6 JPA Tutorial - IntelliJ Project

at the toolbar and click the green run icon (or Shift+F10). If the browser fails to open check the settings at File > Settings > Web Browsers.
0

[ODB1] Chapter 4 - JDO Metadata

is a reference index. In that case equality queries will check reference equality (as == operator in Java
0

javax.jdo.spi.JDOPermission

for closePersistenceManagerFactory permission checking. An instance of JDOPermission to be used for closePersistenceManagerFactory permission checking. Since: JDO 1.0.1 JDOPermission GET_METADATA An instance of JDOPermission to be used for getMetadata permission checking. An instance of JDOPermission to be used
0

javax.jdo.spi.PersistenceCapable

'. Since: JDO 1.0 byte CHECK_READ If jdoFieldFlags for a field includes CHECK_READ, then the field ... . If jdoFieldFlags for a field includes CHECK_READ, then the field has been enhanced ... CHECK_WRITE If jdoFieldFlags for a field includes CHECK_WRITE, then the field has been enhanced
0

checkAuthorizedStateManager(sm)

Static Method javax.jdo.spi.JDOImplHelper void checkAuthorizedStateManager( StateManager sm ) Check ... ("setStateManager"). To improve performance, first the set of authorized classes is checked, and if not present, a regular permission check is made. The regular permission check requires that all callers
0

javax.jdo.PersistenceManagerFactory

this PersistenceManagerFactory. Close this PersistenceManagerFactory. Check for JDOPermission("closePersistenceManagerFactory") and if not authorized, throw SecurityException. If the authorization check succeeds, check

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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