ObjectDB Database Search

with the containing entities. Therefore, embedded objects that are retrieved directly by a result path expression ... results: SELECT c.name, c.capital.name FROM Country AS c The result list of this query contains Object[] elements, one for each result row. Each array contains two elements: the first is the country name

of other persistable types can be stored in the database only as embedded objects in containing ... is thrown if the database already contains another entity of the same type with the same primary key ... their containing entities. Therefore, if Address is an embeddable class , the Employee entity is automatically

; // not persistent because of @Transient } The preceding entity class contains only transient (non ... superclasses. When an entity is stored in the database, each persistent field must contain either null or ... class Person { @Embedded Address address; } Inverse fields Inverse (or mappedBy ) fields contain

- { // do work in a persistence context ... }); In the Jakarta EE environment, a container -managed EntityManager may be obtained by dependency injection, using PersistenceContext . // inject the container ... : IllegalStateException - if the entity manager is container -managed. Since: Jakarta Persistence (JPA) 1.0 boolean

by setting the path attribute in the configuration . The recording directory contains two types ... , which has the same transaction ID in its name, contains the database operations that were recorded

The configuration element specifies back-end (database engine) settings for the server and for embedded mode. The default configuration file contains the following element: The element The element specifies the database file and page size settings: The initial attribute specifies the initial size

copy of the attribution notices contained within such NOTICE file, excluding those notices

The configuration element specifies settings for running an ObjectDB Server . The server is also affected by other elements in the configuration file, such as the and elements. The default configuration file contains the following element: The element The element specifies how clients can connect

. A container annotation that groups multiple @NamedQuery definitions on a single class. Supplies parameters

("orderMgt"); Alternatively, in the Jakarta EE environment, a container -managed EntityManagerFactory may be obtained by dependency injection, using PersistenceUnit . // inject the container -managed factory ... EntityManager s. Alternatively, in the Jakarta EE environment, a container -managed EntityManager

) WARNING: javax.ejb.EJBException: Error reading UTF string at com.sun.ejb. containers .EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:723) at com.sun.ejb. containers ... . containers .EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:482

(EJBSecurityManager.java:1124) at com.sun.ejb. containers .BaseContainer.invokeBeanMethod(BaseContainer.java:5367) at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619) at com.sun.ejb. containers ... .proceed(EjbInvocation.java:571) at com.sun.ejb. containers .interceptors.SystemInterceptorProxy

is to be determined entity - entity instance containing the attribute Returns: false if entity's state ... - attribute whose load state is to be determined entity - entity instance containing the attribute Returns

mapping, the referenced column is in the table of the entity containing the collection. Default ... : "" Since: Jakarta Persistence (JPA) 3.2 String table (Optional) The name of the table that contains

. The ManyToMany annotation may be used within an embeddable class contained within an entity class ... containing the embeddable class is the owner of the relationship, the non-owning side must use

is applied to the specified attribute of the embeddable instances contained in the collection a map ... instances contained in the map, or an entity class which extends a mapped superclass , to enable or

. Container .processEvent( Container .java:2229) at java.awt.Component.dispatchEventImpl(Component.java:4861) at java.awt. Container .dispatchEventImpl( Container .java:2287) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.LightweightDispatcher.retargetMouseEvent( Container .java:4832

. Container .processEvent( Container .java:2039) at java.awt.Component.dispatchEventImpl(Component.java:4653) at java.awt. Container .dispatchEventImpl( Container .java:2097) at java.awt.Component.dispatchEvent(Component.java:4481) at java.awt.LightweightDispatcher.retargetMouseEvent( Container .java:4575) at java.awt

part of a containing object. Objects stored explicitly by makePersistent( ... ) are never embedded ... (an embedded object can only be retrieved using a reference from its containing object). 6.2  ... ); String s1 = oid.toString(); // s1 contains a temporary negative number pm.currentTransaction

whose load state is to be determined entity - entity containing the attribute Returns: false if entity's

a relationship with an embeddable class on the owning side of the relationship, the containing entity

class in the hierarchy has its own table, but that table does not contain columns mapped

String table (Optional) The name of the table that contains the column. Defaults: If the map key

that contains the foreign key column. If the join is for a map key for an element collection, the foreign key

.Component.processEvent(Unknown Source) at java.awt. Container .processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt. Container .dispatchEventImpl(Unknown Source ... .LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt. Container .dispatchEventImpl(Unknown

.Final] at org.jboss.as.jpa. container .ExtendedEntityManager.internalAssociateWithJtaTx(ExtendedEntityManager.java:129) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final] at org.jboss.as.jpa. container ... .Final] at org.jboss.as.jpa. container .AbstractEntityManager.createQuery(AbstractEntityManager.java:112

.JavaEETransactionManagerSimplified.commit(JavaEETransactionManagerSimplified.java:857) at com.sun.ejb. containers .BaseContainer.completeNewTx(BaseContainer.java:5115) at com.sun.ejb. containers .BaseContainer.postInvokeTx(BaseContainer.java:4880) at com.sun.ejb. containers .BaseContainer.postInvoke(BaseContainer.java:2039) at com.sun

cache should work independently on the DB as if it contained transient objects. However those instances of B contain the field __odbTracker of type com.objectdb.o.EMT, which then holds a reference ... makeTransient(A, true) with a FetchPlan containing FetchGroup with category

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceConfiguration PersistenceUnitTransactionType transactionType() The transaction type . If PersistenceUnitTransactionType.JTA , a JTA data source must be provided via PersistenceConfiguration.jtaDataSource , or by the container

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceContext PersistenceProperty[] properties (Optional) Properties for the container or persistence provider. Vendor specific properties may be included in this set of properties. Properties that are not recognized by a vendor

of attribute whose load state is to be determined entity - entity instance containing the attribute

whose load state is to be determined entity - entity instance containing the attribute Returns: false

, which contains a simple form for signing the guestbook, followed by a list of all the guests

: mvn package jetty:run The current directory should be  guestbook-web ( containing the  pom

Started tutorial. The database file contains 1,000 Point entities, which represent points on the line y

.CreateException: Initialization failed for Singleton ReflectionHelper at com.sun.ejb. containers .AbstractSingletonContainer.createSingletonEJB(AbstractSingletonContainer.java:476) at com.sun.ejb. containers .AbstractSingletonContainer.access$000(AbstractSingletonContainer.java:74) at com.sun.ejb. containers

;   return cop; } When the query is run, debugging shows that "list" contains ... ;      if (!this.XCCompetitorCounts. contains (obj)) {     

"), surname)); List allPersons = query.getResultList(); The results will contain records where name ... it an AND condition instead so that it will only contain records with both name AND surname as specified? I

Netbeans project with the error case. It contains 1. App client ( Book_dberror_client ), 2. The enterprise application ( Book_dberror ) which contains the EJB module ( Book_dberror-ejb ) 3. A Java

with the containing entity. Check what the object contains in the debugger, and try to access the collection

, but they may contain collections (explicit or derived) with a large number of elements. Again, most likely I'm ... your own static methods you have to run the Explorer with classpath that contains your classes

I try  to export all Objects in an Flatfile-Hiearchy (.csv). But only the first exported Table contains all necessary Data. Most of the others   contains all  Object-Rows', but most Values of the Columns are missing. With a  em.clear() inside the Loop, all tables are exported

I have the following problem: Setup: Two hierachical Entities (Element, DataElement), which contain an ElementCollection of Embeddables (Costs). The Embeddable from the ElementCollection ... this to a minimal self contained test case, as explained in the  posting instructions , with no external

from within NetBeans - version 7.0 beta (or above) is required. A WAR file that contains the Java EE

itself is running in client-server mode using configuration contained in the default location (objectdb root

.conf configuration file should be located: Usually it should be located in the directory that contains

basic database programming using ObjectDB. Subsequent chapters contain detailed instructions

object after garbage collecting of the containing entity object may cause this exception ... .Worker.run(Worker.java:54) The Log file:   (It contains two error ... ) at objectdb.java.util.ArrayList.add(Unknown Source) at com.btc.ep.formalnotation.bl.impl. containers

: rbccm.felix.framework.ApplicationException: Error flushing graph container at rbccm.felix.objectdb ... at this point is performing a delete query for all entity objects that the database contains : EntityManager em ... (); throw new ApplicationException("Error flushing graph container ", e); } finally { em.close(); } I've

, but if the query has already been run and the field already contains a value - it will not be run again unless ... ? The argument to refresh is the object that contains the inverse field. This way you enforce reloading