About sequence

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JPA Doc
4

SequenceGenerator.catalog

Annotation Element javax.persistence.SequenceGenerator String catalog (Optional) The catalog of the sequence generator. Default value: "" Since: JPA 2.0
JPA Doc
4

SequenceGenerator.initialValue

Annotation Element javax.persistence.SequenceGenerator int initialValue (Optional) The value from which the sequence object is to start generating. Default value: 1 Since: JPA 1.0
JPA Doc
4

SequenceGenerator.schema

Annotation Element javax.persistence.SequenceGenerator String schema (Optional) The schema of the sequence generator. Default value: "" Since: JPA 2.0
JPA Doc
4

SequenceGenerator.sequenceName

Annotation Element javax.persistence.SequenceGenerator String sequenceName (Optional) The name of the database sequence object from which to obtain primary key values. Defaults to a provider-chosen value. Default value: "" Since: JPA 1.0
JPA Doc
4

javax.persistence.criteria.CriteriaQuery

removed, and results will be returned in no particular order. The left-to-right sequence of the ordering
Forum
3

How to package orm.xml when using EJB in WAR?

Hi, I have database utility classes in one project, the id's use sequences declared in an orm.xml ... ="SEQUENCE" generator="unit_seq"/>                 <sequence-generator name="unit_seq" sequence-name ... , suggesting that the orm.xml is found OK and that the sequences are declared properly (they also work
Forum
3

Possible issue for default id generator

generator when strategy is sequence. Error: Incomplete definition of auto value in field MyTestCase ... and 36: @GeneratedValue(strategy=GenerationType.SEQUENCE)//, generator="seq") @Id ... the GenerationType.SEQUENCE strategy without specifying a sequence is meaningless, because with no sequence
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3

On ensuring ID available after persist

and IDENTITY, the SEQUENCE strategy generates an automatic value as soon as a new entity object ... . SEQUENCE - should work well except for DBMS that do not support sequences. Regarding flush - I think it may be slower than just using SEQUENCE or TABLE. The reason that ObjectDB doesn't assign ID
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2

Change Sequcene Id

? javax.jdo.datastore.Sequence seq = em.unwrap(javax.jdo.PersistenceManager.class).getSequence ... sequence. The purpose of the allocate(...) method is different (hint to improve efficiency by pre-allocating ids). But you may define a new sequence with a new initial id, and set the relevant entity
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2

com.objectdb.o.NLV cannot be cast to com.objectdb.o.CMV

(name="RecordingMetaData") @SequenceGenerator(     name="RecordingMetaData_sequence",     sequenceName="RecordingMetaData_sequence",     allocationSize=1 ) public class RecordingMetaData ... _sequence",     sequenceName="RecordingMetaData_sequence",     allocationSize=1 ) @Indices