ObjectDB Database Search

hi, How can I realize multi selection with the criteria api concerning distinct? I.e. doing something like SELECT DISTINCT $1, $2 wouldn't work because I do only have something like criteria.multiselect(...) and nothing like builder.distinct( selection ) so that I could do something like criteria

SELECT : TypedQuery query = em.createQuery(     " SELECT p FROM Point p WHERE p ... ); ** the Point class is of the tutorial. I found the above select method is ten times slower ... . Is there any faster method of select ? TIA pikotenta pikotenta Entity objects can be retrieved by

create a JPA query that selects such objects?  Something like the following (but clearly does not work) :  SELECT p FROM Person p where p.pMap['location']='California' Any thoughts?  Thanks, -Adam   adamMc Adam Please try the following query: SELECT p FROM Person p WHERE p.pMap

Hello, I got a realy strange SELECT problem. In explorer query " select p  from Player p where p.confirmed==false", given me some results with p.confirmed==TRUE. And when I try to do (see image) " select p, p.confirmed  from Player p where p.confirmed==false", I getting p-confirmed-true

Hello is there way to get random rows? Functions like rand(), random(), newid() doesn't work ;/ for example: em.createQuery(" SELECT s FROM StawkaVat s ORDER BY rand()").setMaxResults(5).getResultList(); gives exception: Exception in thread "AWT-EventQueue-0" [ObjectDB 2.5.6_02] SELECT s FROM StawkaVat s == rand

so when I use... SELECT firstName + " " + middleName + " " + lastName FROM Employee     ... an additional field. e.g. displayName . Use a method in the SELECT clause. It could be a static method

;   issue: In case 1 transaction is committed, but select fails!  *   *     ... (em.createQuery(" select a from A a", A.class).getResultList());     }   

) Example query looks like : String strSelect = " SELECT e FROM TestEntity WHERE e.state.entityState IN

simple codes(see attachment), failed.   gzdillon Lai Yang DELETE queries should not be run with getSingleResult ( which is for SELECT queries). Use executeUpdate instead. See this manual page . support Support

Hello. I have a query UPDATE Look l SET l.partlySold = FALSE WHERE ( SELECT count(a) FROM l.things a WHERE a.thing.status != :status)

I am trying to query all entities whose date is between today and today + X days. The date inside the entity is a LocalDate . To do so I created the following query: .createQuery( " SELECT e FROM ... the SELECT a Date is used and not a LocalDate , so I ignored this error. Now I tried a LocalDate

If I open a class in the explorer via the "Open Table Window" button, select a row by its index and prex "Del" or use right click "Delete" the last entry of the table is removed and not the selected one. If I try the same using the "Open Tree Window" it works as expected. Kevin Kevin Pfaff Thank

When I run the following code: EntityManager em = getEm(); Customer result = null; try {     logger.debug("Ident: "+ident);     result = em.createQuery(" Select c from Customer c where c.identifier=:id", Customer.class).setParameter("id", ident).getSingleResult

we try to optimize for our queries and tried a selective update, but in explorer it just shows query execution error:   UPDATE ObjectNode o SET o.state = 5 where o.classIdentifier = '(MA)' and o.objectNameUpper = 'DMU200P2' and o.state = 0 and o.type = 1 and o.parentNode.classIdentifier

and TypedQuery objects: Query q1 = em. createQuery (" SELECT c FROM Country c"); TypedQuery q2 = em. createQuery (" SELECT c FROM Country c", Country.class); In the preceding code, the same JPQL query

an alternative way to update entities. Unlike SELECT queries, which retrieve data, UPDATE queries modify ... . On success, the executeUpdate() method returns the number of objects that the query modified. Selective

: - the type of the selection item. Super Interfaces: AbstractQuery , Expression , CommonAbstractCriteria , Selection , TupleElement The Subquery interface defines functionality that is specific to subqueries. A subquery has an expression as its selection item. Since: Jakarta Persistence (JPA) 2.0 Public

_ SELECTIVE Caching is enabled for all entities except those for which Cacheable(false) is specified. Entities for which Cacheable(false) is specified are not cached. Since: Jakarta Persistence (JPA) 1.0 ENABLE _ SELECTIVE Caching is enabled for all entities for which Cacheable(true) is specified

, From , Path , FetchParent , Expression , Selection , TupleElement The PluralJoin interface defines ... query construction. Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

referenced by the path Super Interfaces: Expression , Selection , TupleElement Represents a simple ... how to use Path . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item

Interfaces: PluralJoin , Join , From , Path , FetchParent , Expression , Selection , TupleElement ... Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

: - the entity type referenced by the root Super Interfaces: From , Path , FetchParent , Expression , Selection ... . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

, From , Path , FetchParent , Expression , Selection , TupleElement The SetJoin interface is the type ... that has been specified as a java.util.Set . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed

: PluralJoin , Join , From , Path , FetchParent , Expression , Selection , TupleElement The CollectionJoin ... Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from Selection

: - the type of the selection item Super Interfaces: Selection , TupleElement The CompoundSelection interface defines a compound selection item (a tuple, array, or result of a constructor). Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias

, From , Path , FetchParent , Expression , Selection , TupleElement The ListJoin interface is the type ... that has been specified as a java.util.List . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias

: - the source type - the target type Super Interfaces: Path , FetchParent , Expression , Selection ... to the type. Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns

, Expression , Selection , TupleElement A join to an entity, embeddable, or basic type. Since: Jakarta ... Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

: Expression , Selection , TupleElement The type of a simple or compound predicate: a conjunction or ... how to use Predicate . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same

Parameters: - the type of the parameter expression Super Interfaces: Parameter , Expression , Selection ... Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

.persistence.criteria.CriteriaBuilder.Case Super Interfaces: Expression , Selection , TupleElement ... which they are specified. Since: Jakarta Persistence (JPA) 1.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

.persistence.criteria.CriteriaBuilder.In Super Interfaces: Predicate , Expression , Selection ... Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from Selection Parameters

.persistence.criteria.CriteriaBuilder.Coalesce Super Interfaces: Expression , Selection , TupleElement ... otherwise. Since: Jakarta Persistence (JPA) 1.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned

editor (by right clicking and selecting   Open With Text Editor or by double click ... that file: Right click the WEB-INF node in the [Package Explorer] window, select   New Other... XML

In this step we will add a servlet to manage guestbook web requests: Open the [Create Servlet] dialog box by right clicking the guest package node (in the [Package Explorer] window),  selecting ... of guests: List guestList = em.createQuery( " SELECT g FROM Guest g", Guest.class).getResultList

We start by creating a new Maven-WTP dynamic web project in Eclipse: Open the [New Project] dialog box, e.g. by using  File New Project... Select   Maven Maven Project and click  ... ; maven-archetype-webapp as a filter, select   maven-archetype-webapp in the artifact list and click

clicking and selecting Edit or by double click and then moving to the XML tab in the editor window ... , select New Other... and then choose the XML category, XML Document and click Next . Enter spring

We start by creating a new Maven web project in NetBeans: Open the [New Project] dialog box, e.g. by using File New Project... Select Maven Maven Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and select Java EE 5. Enter Maven Group Id (e.g. com.objectdb.tutorial.spring

We start by creating a new Java EE dynamic web project in Eclipse: Open the [New Project] dialog box, e.g. by using File New Project... Select Web Dynamic Web Project and click Next . Choose a Project Name (e.g. Guestbook ). Select GlassFish Server Open Source Edition 3 (Java EE 6) as the Target

node (in the [Projects] window), selecting New Other... Java EE (or Enterprise JavaBeans) Session ... getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class

clicking the guest package node (in the [Projects] window under Source Packages) and selecting New ... () { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class); return

Connections to the database are represented in BIRT as data sources. To create an ObjectDB data source: Open the [New Data Source] dialog box by right clicking the Data Sources node in the [Data Explorer] window and selecting   New Data Source . Select ObjectDB Data Source from the list

) layout. Set the column number to 2 , number of details to 1 , select the data set (e.g. Points by X ... in the [Navigator] window and selecting Report Run Report :  

clicking the guest package node (in the [Package Explorer] window) and selecting   New Class ... getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class); return

To use BIRT we need to create a BIRT Report project in Eclipse: Open the [New Project] dialog box, e.g. by using File New Project... Select Business Intelligence and Reporting Tools Report Project ... project: Right click the Reports node in the [Navigator] and select New Report . Enter the report

We start by creating a new Eclipse Dynamic Web Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Web Dynamic Web Project and click Next . Choose a Project Name (e.g. Guestbook ). Select Apache Tomcat v6.0 as the Target runtime. Note: You may have to add Tomcat 6

] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Other... Select Web Web Application Listener and click Next . Enter GuestListener as the class name - use

Project] dialog box: Select Java Project and click Next . Choose a Project Name (e.g. Tutorial ) and click Next . In the Libraries tab, click Add External JARs... and select the objectdb.jar file from

node (in the [Package Explorer] window) and selecting New Class . The package name should be guest ... ); } // Retrieves all the guests: public List getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM

In this step we will add a servlet to manage guestbook web requests: Open the [New Servlet] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Servlet ... .getTransaction().commit(); } // Display the list of guests: List guestList = em.createQuery( " SELECT g FROM