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currentTime()

Method javax.persistence.criteria.CriteriaBuilder Expression<Time> currentTime() Create expression to return current time. Returns: expression for current time Since: JPA 2.0
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javax.persistence.EntityExistsException

time. The current transaction, if one is active, will be marked for rollback. Since: JPA 1.0 ... and the entity already exists. The current transaction, if one is active, will be marked for rollback ... within this Throwable object information about the current state of the stack frames for the current thread
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javax.persistence.EntityTransaction

- if isActive() is true Since: JPA 1.0 void commit() Commit the current resource transaction, writing any unflushed changes to the database. Commit the current resource transaction, writing any ... - if the commit fails Since: JPA 1.0 boolean getRollbackOnly() Determine whether the current
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javax.persistence.PessimisticLockException

. This exception may be thrown as part of an API call, a flush or at commit time. The current ... information about the current state of the stack frames for the current thread. Returns: a reference
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javax.persistence.QueryTimeoutException

: Serializable Thrown by the persistence provider when a query times out and only the statement is rolled back. The current transaction, if one is active, will be not be marked for rollback. Since: JPA 2 ... about the current state of the stack frames for the current thread. Returns: a reference to this Throwable instance
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javax.persistence.OptimisticLockException

. This exception may be thrown as part of an API call, a flush or at commit time. The current transaction ... information about the current state of the stack frames for the current thread. Returns: a reference
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[ODB1] Chapter 1 - About ObjectDB

a very short time, because it is very easy to use. In fact, it is the easiest JDO implementation
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javax.jdo.datastore.Sequence

of additional values to allocate Since: JDO 2.0 Object current() Returns the current sequence value object if it is available. Returns the current sequence value object if it is available. It is intended to return a sequence value object previously used. If the current sequence value is not available, throw
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javax.jdo.spi.StateInterrogation

the application or the data store, then the ObjectId returned is only valid within the current ... instance has been deleted. Instances that have been deleted in the current transaction return Boolean ... if the parameter instance was deleted in the current transaction. Since: JDO 2.0
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javax.jdo.Query

. Returns: the current setting of the flag Since: JDO 2.0 void setCandidates( Extent pcs) Set ... expression returned false for the evaluation of the current set of variable values. Other values ... the cache. For optimistic transactions, this can dramatically improve query response times

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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