ObjectDB Database Search

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Privacy Policy

 is any information that relates to an identified or identifiable individual. Service  refers ... While using Our Service, We may ask You to provide Us with certain personally identifiable information that can be used to contact or identify You and to process payments by You. Personally identifiable

Query Parameters in JPA

filters the query results to Country objects whose name field is equal to :name . The :name identifier ... the call to getSingleResult in the same expression. Named parameters in a query string are identifiable by their format: a colon (:) followed by a valid JPQL identifier that serves as the parameter name. JPA

FROM clause (JPQL / Criteria API)

Country c Reserved identifiers The name of a JPQL query variable must be a valid Java identifier ... , WHEN, WHERE. JPQL variables, as well as all the reserved identifiers in the list above, are case

JPA Metamodel Types

, corresponding to the subinterfaces below. Managed and identifiable types Complex types that manage ... , binding, and identifier attributes. Represents a @MappedSuperclass , defining persistent state

Eclipse Public License - v 1.0

copyright notices contained within the Program. Each Contributor must identify itself as the originator of its Contribution, if any, in a manner that reasonably allows subsequent Recipients to identify

jakarta.persistence.metamodel.IdentifiableType

: IllegalArgumentException - if id attribute of the given type is not declared in the identifiable type or if the identifiable type has an id class. Since: Jakarta Persistence (JPA) 1.0 ListAttribute ... : IllegalArgumentException - if version attribute of the type is not declared in the identifiable type

jakarta.persistence.metamodel.EntityType

is not declared in the identifiable type or if the identifiable type has an id class ... - if version attribute of the type is not declared in the identifiable type. Since: Jakarta Persistence ... attribute of the given type is not present in the identifiable type or if the identifiable type

jakarta.persistence.metamodel.MappedSuperclassType

declared in the identifiable type or if the identifiable type has an id class. Since: Jakarta ... attribute of the type is not declared in the identifiable type. Since: Jakarta Persistence (JPA) 1.0 ... of the given type is not present in the identifiable type or if the identifiable type has an id

Retrieving JPA Entities

and primary key Every entity can be uniquely identified and retrieved by the combination of its class

JPA Core Types

obtained from EntityManagerFactory . It provides methods to inspect identifiers and version

Database Doctor

the ObjectDB Doctor diagnosis to identify potential problems early. Running doctor diagnosis The ObjectDB

jakarta.persistence.Convert

attribute. The value of each identifier used with the dot notation is the name of the respective embedded ... Since: Jakarta Persistence (JPA) 1.0 String attributeName A name or period-separated path identifying

jakarta.persistence.metamodel.IdentifiableType.getSupertype()

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.IdentifiableType IdentifiableType getSupertype() Return the identifiable type that corresponds to the most specific mapped superclass or entity extended by the entity or mapped superclass. Returns: supertype of identifiable type or

jakarta.persistence.metamodel.IdentifiableType.hasSingleIdAttribute()

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.IdentifiableType boolean hasSingleIdAttribute() Whether the identifiable type has a single id attribute. Returns true for a simple id or embedded id; returns false for an idclass. Returns: boolean indicating whether the identifiable

jakarta.persistence.metamodel.IdentifiableType.hasVersionAttribute()

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.IdentifiableType boolean hasVersionAttribute() Whether the identifiable type has a version attribute. Returns: boolean indicating whether the identifiable type has a version attribute. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.metamodel.IdentifiableType.getId(Class)

the identifiable type or if the identifiable type has an id class. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.metamodel.IdentifiableType.getDeclaredId(Class)

of the given type is not declared in the identifiable type or if the identifiable type has an id class. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.metamodel.IdentifiableType.getIdClassAttributes()

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.IdentifiableType Set getIdClassAttributes() Return the attributes corresponding to the id class of the identifiable type. Returns: id attributes. Throws: IllegalArgumentException - if the identifiable type does not have an id class. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.Id

Jakarta Persistence (JPA) Annotation Type jakarta.persistence.Id Implemented Interfaces: Annotation Target: Method, Field Identifies the primary key of an entity. The field or property to which the Id annotation is applied should have one of the following types: any Java primitive type; any

jakarta.persistence.IdClass

Jakarta Persistence (JPA) Annotation Type jakarta.persistence.IdClass Implemented Interfaces: Annotation Target: Type Specifies a composite primary key type whose fields or properties map to the identifier fields or properties of the annotated entity class. The specified primary key type

jakarta.persistence.GenerationType

provider must assign primary keys for the entity by generating an RFC 4122 Universally Unique IDentifier

jakarta.persistence.ManyToMany

the relationship attribute within the embedded attribute. The value of each identifier used with the dot

jakarta.persistence.ManyToOne

the relationship attribute within the embedded attribute. The value of each identifier used

jakarta.persistence.NamedEntityGraph

name (Optional) The name used to identify the entity graph in calls to EntityManager.getEntityGraph

jakarta.persistence.Version

field or property holds a version number or timestamp identifying the revision of the entity data

jakarta.persistence.AttributeOverride

within an embedded attribute. The value of each identifier used with the dot notation is the name

jakarta.persistence.AssociationOverride

. The value of each identifier used with the dot notation is the name of the respective embedded field or

jakarta.persistence.metamodel.IdentifiableType.getDeclaredVersion(Class)

: IllegalArgumentException - if version attribute of the type is not declared in the identifiable type. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.metamodel.IdentifiableType.getVersion(Class)

of the given type is not present in the identifiable type. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.GenerationType.UUID

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.GenerationType UUID Indicates that the persistence provider must assign primary keys for the entity by generating an RFC 4122 Universally Unique IDentifier . May be used to generate primary keys of type java.util.UUID or String . Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.NamedEntityGraph.name

Jakarta Persistence (JPA) Method in jakarta.persistence.NamedEntityGraph String name (Optional) The name used to identify the entity graph in calls to EntityManager.getEntityGraph . If no name is explicitly specified, the name defaults to the entity name of the annotated root entity. Entity graph

jakarta.persistence.NamedNativeQuery.name

Jakarta Persistence (JPA) Method in jakarta.persistence.NamedNativeQuery String name The name used to identify the query in calls to EntityManager.createNamedQuery . Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.NamedQuery.name

Jakarta Persistence (JPA) Method in jakarta.persistence.NamedQuery String name (Required) The name used to identify the query in calls to EntityManager.createNamedQuery . Since: Jakarta Persistence (JPA) 1.0

General Performance Issues Illustrated with a Specific Method

; import javax.persistence.Temporal; import lk.gov.health.phsp.pojcs. Identifiable ; @Entity @Table public class Client implements Serializable , Identifiable { // @Id @GeneratedValue(strategy ... .phsp.pojcs. Identifiable ; import org.joda.time.LocalDate; import org.joda.time.Period; import org.joda

Optimization Question

to identify exactly what fields have changed from one update to the next. Currently the following ... prone code to identify exactly what's changed and replace only exactly those items ... identifier and a mapping of that to the ObjectDB OID is used to delete the existing track data before

Performance issue in a query due to compareTo calls

(AccessType.FIELD) public class TCStep extends Identifiable { @Index private long stepNumber; @Basic ... @Access (AccessType.FIELD) public class Values extends Identifiable { @Index private long stepNumber ... (AccessType.FIELD) public class Values extends Identifiable { @OneToOne (fetch = FetchType.EAGER) private

"Unexpected query expression" using CriteriaQuery FetchParent Interface

: Unexpected query expression end (non keyword identifier is expected)] with root cause com.objectdb.o.UserException: Unexpected query expression end (non keyword identifier is expected) at com.objectdb.o ... end (non keyword identifier is expected) (error 751) (position 9) at com.objectdb.jpa.JpaQuery

JPQL JOIN FETCH Error

. identifiers identifiers left join fetch metadata.sources sources left join fetch metadata.languages ... metadata.formats LEFT JOIN FETCH metadata. identifiers LEFT JOIN FETCH metadata.sources LEFT JOIN FETCH

[ODB1] Chapter 6 - Persistent Objects

; Object IDs and Names Identifying database objects by unique IDs and by names is useful in object retrieval, as shown in the next section ( section 6.3 ). ObjectDB supports two identifying methods ... are not described in the JDO metadata files, the enhancer identifies them as not persistent and does

Need help to make this test work and define proper annotations for entities Lists

identifier ;             public String apiName ... ;             identifier = ident;  

Updating existing persistence entries

*within* the session, I can do it wherever and whenever I want and hibernate identifies the object by ... are identified automatically. Of course, you have to begin and commit a transaction (when SAVE

How to enable and disable auto schema update?

a previous schema version. The fields are identified by their names only. If you add a new persistent ... then it will not remove the field as ObjectDB will identify it as an old schema. Anyway, this is not

Java FX tableview fill with an aggregated query

.objectdb.o._PersistenceException: Unexpected query token 'value' (non keyword identifier is expected ... keyword identifier is expected) at com.objectdb.o.MSG.a(MSG.java:64) at com.objectdb.o.TKN.w(TKN.java:781

[ODB1] Chapter 9 - ObjectDB Explorer

and may therefore be represented by more than one node. To help identify circles in the graph of objects, a special ... of the same tree path (i.e. the object is identified as a descendant of itself in the tree). To open

ObjectDB throws `NullPointerException` in internal code (`com.objectdb.o.ENH.b`)

clear. There have been similar reports in the past, but more details are needed to identify the exact

InternalError on query of empty database

Hi, I have reasons for sometimes trying to query the database before anything has been created. The problem is the database throws a InternalException when that happens. Is it possible to throw something that identifies that that is the issue, say something like "MissingSchemaException", ie

References to objects of missing obsolete entity classes

database: [2021-03-31 15:19:54 #1 type] Type com.btc.ep.vector.tc.internal.dmos. Identifiable is not ... for field property com.btc.ep.vector.tc.internal.dmos. Identifiable .uid using reflection at com ... : java.lang.NoSuchMethodException: com.btc.ep.vector.tc.internal.dmos. Identifiable .setUid(java.lang

[ObjectDB 2.2.6_02] Unexpected exception (Error 990) at com.objectdb.o.OBC.aJ(OBC.java:961)

, TimePeriod identifier ) throws Exception { // obtain the moment Calendar now = Calendar.getInstance ... ); latestPoint.setY(y); // create and update a Chart ChartEntity chart = new ChartEntity( identifier

queries under 2.7.6_4 significantly slower than under 2.7.6

, if you can identify the exact build in which these new issues started (_01, _02, _03 or _04) it could help ... ) it may help identifying a pattern and finding a solution. If the schema and indexes are the same

each 1-2 days objects on some objectdb level lock/block each other

to identify the real issue. support Support attached a series of 5 thread dumps hgzwicker Hans-Georg ... requests before hitting ObjectDB? You can probably identify that activity in your log files (or in