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5

ObjectDB Web Site - Terms and Conditions of Use

this web site you are agreeing to be bound by the then current version of these Terms and Conditions
Manual
5

Defining a JPA Entity Class [2018-10-20]

for persistent fields, how to define and use a primary key and what a version field is and how to use
Manual
5

Defining a JPA Entity Class [2019-01-29]

, how to define and use a primary key and what a version field is and how to use
Manual
5

Defining a JPA Entity Class [2019-01-29]

, how to define and use a primary key and what a version field is and how to use
Manual
5

Defining a JPA Entity Class [2019-01-31]

, how to define and use a primary key and what a version field is and how to use
Manual
5

Defining a JPA Entity Class

, how to define and use a primary key and what a version field is and how to use
JPA Doc
5

javax.persistence.LockModeType

.OPTIMISTIC on a versioned object, the entity manager must ensure that neither of the following ... of type LockModeType.OPTIMISTIC_FORCE_INCREMENT on a versioned object, will also force an update (increment) to the entity's version column. The persistence implementation is not required to support
JDO Doc
4

javax.jdo.Constants

See Also: PersistenceManagerFactory.getProperties() String NONCONFIGURABLE_PROPERTY_VERSION_NUMBER ... See Also: PersistenceManagerFactory.supportedOptions() String OPTION_VERSION_DATETIME "javax.jdo.option.version.DateTime" "javax.jdo.option.version.DateTime" Since: JDO 2.1
JPA Doc
4

javax.persistence.MappedSuperclass

{ @Id protected Integer empId; @Version protected Integer version; @ManyToOne ... to FTEMPLOYEE.EMPID // Inherited version field mapped to FTEMPLOYEE.VERSION ... empId field mapped to PT_EMP.EMPID // Inherited version field mapped to PT_EMP.VERSION
Forum
3

Optimistic locking failure

---------------------------------------------------------- READ(A) version=1 value=0 | READ(B) version=1 value=0 | | READ(A) version=1 value=0 | READ(B) version=1 value=0 | B = A + B + 20 | WRITE(B) version=2