ObjectDB Database Search

Source not found error after downloading ObjectDB 2.3.7_04

Storing a tree of data (depth=3)

How can I enable serialization for objectdb or an entity manager if I do not use a configuration file: System.setProperty("objectdb.???", /* ??? */); OR this.entityManager.setProperty(/* ??? */, /* ??? */); itsme Martin Petzold It has to be enabled in the objectdb.conf file as shown on this manual

Hello, Can I enable and disable the auto schema update? In some cases if multiple applications are using same database and mistakenly one of application uses entity of older version build(my specified entity libs) then the whole db is being corrupted and db need to be restart.  Expected

Hi, I have the following test class that is failing when the enhancer is enabled , resulting in the error 'Failed to write the value of field field TestEmbeddableMap$MyAttributeItem.id using enhanced method.', if I disable the enhancement the test works as expected, and returns the expected

ObjectDB 2.2.3

ObjectDB 2.4.3

ObjectDB 2.9.3_01

ObjectDB 2.3.2

ObjectDB 2.3.5

ObjectDB 2.3.1

ObjectDB 2.9.3

version 2.4.5+ with GlassFish 3.1.2, errors when runs application. Version 2.4.4 worked but not 2.4.5 or later

ObjectDB 2.7.3

ObjectDB 2.5.3

ObjectDB 2.6.3

[ObjectDB 2.3.7_08] Unexpected exception (Error 990)

ObjectDB 2.8.3

ObjectDB 2.0.3

ObjectDB 2.3.4

recursively to any other entities referenced with cascading enabled . Bulk detach The following ... also merges the referenced Address instance. This process continues recursively to any other entities referenced with cascading enabled .

) are instantiated by using proxy classes. These proxy classes extend the original classes and enable transparent ... a constant can cause data loss in existing databases. The @Enumerated annotation enables

. When you use ObjectDB, optimistic locking is enabled by default and is fully automatic. Optimistic ... retrieved it. Optimistic locking is completely automatic and enabled by default in ObjectDB, regardless

Jakarta Persistence (JPA) defines a hierarchy of unchecked exceptions rooted in PersistenceException to handle runtime failures. This structure enables applications to catch specific errors or ... runtime exception for the JPA API. All other JPA exceptions inherit from this class, enabling

cannot be loaded from the database. Since: Jakarta Persistence (JPA) 3 .2 Object getIdentifier ( Object ... is found not to be an entity. Since: Jakarta Persistence (JPA) 3 .2 boolean isInstance ( Object entity ... . Since: Jakarta Persistence (JPA) 3 .2 boolean isLoaded ( Object entity , String attributeName ) Determine

of the transaction Returns: the value returned by the given function. Since: Jakarta Persistence (JPA) 3 ... of the persistence unit. Since: Jakarta Persistence (JPA) 3 .2 Map getNamedEntityGraphs ( Class entityType ... graphs Returns: a map keyed by graph name. Since: Jakarta Persistence (JPA) 3 .2 Map getNamedQueries

of the given basic type. Since: Jakarta Persistence (JPA) 3 .2 Root correlate ( Root parentRoot ) Create ... for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Object value ) Create ... (JPA) 3 .2 Root from ( Class entityClass ) Create and add a query root corresponding to the given

effect during query execution. Inherited from Query Since: Jakarta Persistence (JPA) 3 .2 CacheStoreMode ... . Inherited from Query Since: Jakarta Persistence (JPA) 3 .2 int getFirstResult () The position of the first ... to the transaction. Since: Jakarta Persistence (JPA) 3 .2 Integer getTimeout () The query timeout

that will be in effect during query execution. Since: Jakarta Persistence (JPA) 3 .2 CacheStoreMode ... . Since: Jakarta Persistence (JPA) 3 .2 int getFirstResult () The position of the first result the query object ... the persistence context has not been joined to the transaction. Since: Jakarta Persistence (JPA) 3

that will be in effect during query execution. Inherited from Query Since: Jakarta Persistence (JPA) 3 ... execution. Inherited from Query Since: Jakarta Persistence (JPA) 3 .2 int getFirstResult () The position ... Since: Jakarta Persistence (JPA) 3 .2 int getUpdateCount () Return the update count or -1 if there is no pending

.properties.doubleValue FROM Action a WHERE a.type = 0 and a.subType = 3 and a.state = 3 and a.endDate = ?1 ... . [Step 1d] Filter the results of step 1c retaining only results that satisfy: (a.state= 3 ). [Step 1e] Filter the results of step 1d retaining only results that satisfy: (a.subType= 3 ). [Step 1f] Filter

expression of the given basic type. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ... for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Object value ) Create a predicate ... ) 3 .2 Path get ( SingularAttribute attribute ) Create a path corresponding to the referenced single

Returns: a scalar expression of the given basic type. Since: Jakarta Persistence (JPA) 3 .2 Predicate ... testing for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Object value ) Create ... Persistence (JPA) 3 .2 String getAlias () Return the alias assigned to the tuple element or null

of the given basic type. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Expression value ... . Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Object value ) Create a predicate to test ... to be tested against Returns: predicate testing for equality. Since: Jakarta Persistence (JPA) 3 .2 String

Persistence (JPA) 3 .2 Predicate equalTo ( Expression value ) Create a predicate to test ... against Returns: predicate testing for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate ... for equality. Since: Jakarta Persistence (JPA) 3 .2 String getAlias () Return the alias assigned

type. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Expression value ) Create a predicate ... Persistence (JPA) 3 .2 Predicate equalTo ( Object value ) Create a predicate to test whether the expression ... against Returns: predicate testing for equality. Since: Jakarta Persistence (JPA) 3 .2 String getAlias () Return

Persistence (JPA) 3 .2 Predicate equalTo ( Expression value ) Create a predicate to test ... against Returns: predicate testing for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate ... for equality. Since: Jakarta Persistence (JPA) 3 .2 String getAlias () Return the alias assigned

(JPA) 3 .2 Predicate equalTo ( Expression value ) Create a predicate to test whether the expression ... for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate equalTo ( Object value ) Create ... to be tested against Returns: predicate testing for equality. Since: Jakarta Persistence (JPA) 3 .2 String

Persistence (JPA) 3 .2 Predicate equalTo ( Expression value ) Create a predicate to test ... to be tested against Returns: predicate testing for equality. Since: Jakarta Persistence (JPA) 3 .2 Predicate ... testing for equality. Since: Jakarta Persistence (JPA) 3 .2 String getAlias () Return the alias assigned

public String getDescription() { return description; } Example 3 : @Column(name = "ORDER_COST", updatable ... , and is not portable across databases. Default: "" Since: Jakarta Persistence (JPA) 3 .2 String table ... driver should be stored in a timestamp column. Default: -1 Since: Jakarta Persistence (JPA) 3 .2

Jakarta Persistence (JPA) Criteria API uses a hierarchy of interfaces to model query conditions and selections, enabling the construction of dynamic, type-safe queries. These interfaces represent the building blocks for defining query logic programmatically. The hierarchy of the expression

cannot. You must enable recording , but no other preparations or settings are required. Setting slave

for defining fetch plans of related entities or embeddables. It enables fine-grained control over deep

License OEM License ObjectDB 2.x OEM license enables distribution of ObjectDB runtime bundled in

You with services available through the Website and to enable You to use some of its features. They help

Point class represents points in a plane. It is marked as an entity class, which enables you to store

Jakarta Persistence (JPA) provides standard annotations to manage dependencies on container-managed persistence resources in both Jakarta EE and Spring Framework environments. They enable the container to inject EntityManager or EntityManagerFactory proxies directly into application components

Query parameters enable you to define reusable queries. You can execute these queries with different parameter values to retrieve different results. Executing the same query multiple times with different parameter values is more efficient than using a new query string for each execution

schema evolution ObjectDB implements an automatic schema evolution mechanism that enables the transparent

fill the fields with arbitrary values to enable it. A new entity class that should represent Guest