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per type hierarchy, so generated values are unique only per type hierarchy. The Sequence Strategy The sequence strategy consists of two parts - defining a named sequence and using the named sequence ... a sequence and accepts a name, an initial value (the default is 1) and an allocation size (the default

I want to use sequences in JDO without using annotations. Normally this is done with a package-X ... ? Could you try putting it in the ordinary package.jdo file? support Support I didn't think sequence was valid ... for the sequence , rather than getSequence() .                    

I'm trying to use sequences to set field values in JDO.  I want to do this in XML metadata ... .Audit.id) (error 341) Can you describe how I should be using sequences to provide field values?       sjzlondon Steve Zara It seems that the fully qualified name of this sequence

down to the leaf. The obvious design solution is to write the transactions to the database in sequence ... , which is true.  Commands must, however, be executed in their time-ordered sequence .  Object schemas are stored in the database and updated schemas are added in sequence in the database

JPA Enum Constant in jakarta.persistence.GenerationType SEQUENCE Indicates that the persistence provider must assign primary keys for the entity using a database sequence . May be used to generate primary keys of type Long, Integer, long , or int . Since: JPA 1.0

allocation of global object database IDs. Sequence IDs - IDs are allocated automatically by application defined sequences . Application IDs - primary key values are set explicitly by the application. Query

sequences is not supported by JPA and JDO. The following non portable code, however, resets the global sequence IDs:     javax.jdo.datastore. Sequence sequence =     ... ");      sequence .allocate((int)- sequence .currentValue()); Assuming you use JPA

is specified for the GeneratedValue annotation. A sequence generator may be specified on the entity class ... annotation of any program element in the annotated package has strategy= SEQUENCE and a defaulted plain ... Attributes int allocationSize default 50 (Optional) The amount to increment by when allocating sequence

of my configuration file - and the changes have been succesfully made in database. Unfortunately, sequences ... _BOARD", strategy = GenerationType. SEQUENCE ) lwalkowski Lukasz Walkowski Also, when I modify ... ;     @GeneratedValue(generator = "SEQ_BOARD", strategy = GenerationType. SEQUENCE

generator when strategy is sequence . Error: Incomplete definition of auto value in field MyTestCase ... and 36: @GeneratedValue(strategy=GenerationType. SEQUENCE )//, generator="seq") @Id @SequenceGenerator ... using the  GenerationType. SEQUENCE strategy without specifying a sequence is meaningless

Hi, I have database utility classes in one project, the id's use sequences declared in an orm.xml ... is found OK and that the sequences are declared properly (they also work for postgres ... that the sequence generator isn't working when the EJB is embedded in a WAR file?        

, the SEQUENCE strategy generates an automatic value as soon as a new entity object is   persisted (i.e ... . 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 . support Support The reason that ObjectDB doesn't

? javax.jdo.datastore. Sequence seq = em.unwrap(javax.jdo.PersistenceManager.class).getSequence ... Masaaki Tsugami You cannot set the next id of an existing sequence . The purpose of the allocate ... sequence with a new initial id, and set the relevant entity class to use the new sequence (note

;   @SequenceGenerator(         name="DateTime_ sequence ",         sequenceName="DateTime_ sequence ",     ... ;     @GeneratedValue(strategy=GenerationType. SEQUENCE , generator="DateTime_ sequence

; @SequenceGenerator(         name="DateTime_ sequence ",         sequenceName="DateTime_ sequence ",        ... . SEQUENCE , generator="DateTime_ sequence ")         public Long

;  name="RecordingMetaData_ sequence ",     sequenceName="RecordingMetaData_ sequence ... _ sequence ",     sequenceName="RecordingMetaData_ sequence ",    

@Table(name = "PROJECT") @SequenceGenerator(name = "PROJECT_ SEQUENCE ", sequenceName = "PROJECT_ SEQUENCE ", allocationSize = 1, initialValue = 0) @SuppressWarnings({"PersistenceUnitPresent ... ; @GeneratedValue(strategy = GenerationType. SEQUENCE , generator = "PROJECT_ SEQUENCE ")    

key of type Long, Integer, long , or int , the provider selects between TABLE , SEQUENCE ... . Since: JPA 1.0 SEQUENCE Indicates that the persistence provider must assign primary keys for the entity using a database sequence . May be used to generate primary keys of type Long, Integer, long , or int

(strategy = GenerationType.TABLE, generator = " sequences ") // @TableGenerator(name = " sequences ", initialValue = 1, allocationSize = 50) // @GeneratedValue(strategy = GenerationType. SEQUENCE

JPA Annotation Attribute in jakarta.persistence.SequenceGenerator int allocationSize default 50 (Optional) The amount to increment by when allocating sequence numbers from the sequence . Since: JPA 1.0

= GenerationType. SEQUENCE , generator = "sampleSeqGenerator") @Id long id;   The id field is as expected ... Mortimer Cladwell To obtain an automatic id on persist before commit use sequence or table strategy . support Support

to finding ID of entity before commit? lwalkowski Lukasz Walkowski You can use a SEQUENCE (or TABLE ... to sequence or table or I will try to force setting id. Thanks. lwalkowski Lukasz Walkowski

collation sequence . So I wonder if JPA will ever support this. Also, in an RDBMS, you can specify ... , since most international customers probably just use one collation sequence anyhow. Maybe some property

keys are sequential and therefore they are stored in sequence pages in the database. New objects ... objects their primary keys are sequential and therefore they are stored in sequence pages in

="RecordingMetaData_ sequence ", sequenceName="RecordingMetaData_ sequence ", allocationSize=1 ) @Indices

= "b", allocationSize = 1) public class Parent { @Id @GeneratedValue(strategy = GenerationType. SEQUENCE ... @GeneratedValue(strategy = GenerationType. SEQUENCE , generator = "b") private int id; @ManyToOne

JPA Annotation Attribute in jakarta.persistence.SequenceGenerator int initialValue default 1 (Optional) The value from which the sequence object is to start generating. Since: JPA 1.0

JPA Annotation Attribute in jakarta.persistence.SequenceGenerator String schema default "" (Optional) The schema of the sequence generator. Since: JPA 2.0

JPA Annotation Attribute in jakarta.persistence.SequenceGenerator String catalog default "" (Optional) The catalog of the sequence generator. Since: JPA 2.0

JPA Annotation Attribute in jakarta.persistence.SequenceGenerator String sequenceName default "" (Optional) The name of the database sequence object from which to obtain primary key values. Defaults to a provider-chosen value. Since: JPA 1.0

JPA Annotation Attribute in jakarta.persistence.SequenceGenerator String options default "" (Optional) A SQL fragment appended to the generated DDL statement which creates this sequence . Since: JPA 3.2

-to-right sequence of the ordering expressions determines the precedence, whereby the leftmost

when this callback occurs only for UUID , TABLE , or SEQUENCE primary key generation. For IDENTITY

int , the provider selects between TABLE , SEQUENCE , and IDENTITY . The AUTO generation strategy

. The left-to-right sequence of the ordering expressions determines the precedence

- please consider: a different GeneratedValue 's strategy  (in ObjectDB the SEQUENCE  

=GenerationType. SEQUENCE , generator="user_pwd_seq")     @SequenceGenerator(name="user_pwd

@GeneratedValue (strategy = GenerationType. SEQUENCE , generator = "seq" ) private Long id

sequence executes when a track update comes in: - If it’s a new track simply add it to the database

=false   I can also confirm that the following sequence of updates works fine: UPDATE

; @GeneratedValue(strategy = GenerationType. SEQUENCE , generator = "gen") @Id private int principalId; public

less useful, unless  startDate is last. support Support the sequence of the index members is the key, thanks hgzwicker Hans-Georg Zwicker

This makes sense. The database file may have unused space, and if that space contains a long sequence

When using JDO without annotations, database sequences are normally defined in the ORM file. Following discussion on the forum I was told that ObjectDB supports sequences if specified in the JDO ... javax.jdo.datastore. Sequence ; import testcase.Thing; public class Testcase { public static void main

would have to switch to TABLE or SEQUENCE strategy instead of AUTO to get an ID ensured after just persist ... /ticket/314) Ok, I've tested objectdb-2.2.5_10 on the larger test sequence of ConfigBean (not just ... relationships corresponding to the test case sequence appear correct, and the once "missing" objects

type. Fixed JDO sequence names to be fully qualified names (issue #1074 ). Fixed accessing a package level JDO sequence using getSequence ( issue #1074 ). Fixed false Doctor warnings when updating

(except that this may be related to using large number of entity classes and/or sequences ). Can you post a test that causes ... , and sequences is large. The workaround just increased the threshold but didn't fix the problem in the general

Support we are a bit lost, where do we find that list/ sequence of query plans ? hgzwicker Hans-Georg

The JPQL (Java Persistence Query Language) supports defining subqueries, which are nested queries that are embedded in other queries. Subqueries are currently not supported by ObjectDB, and as a workaround, you can use a sequence of two or more queries, where the results of one query serves as a parameter in the next queries. support Support

Zwicker one more sequence (system not more performing) hgzwicker Hans-Georg Zwicker we increased