ObjectDB Database Search

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

internally runs SELECT NEW ... queries. For example: SELECT NEW com.arunta.base.db.FileNameDTO(r.id, r.fileName) FROM RecordingMetaData AS r WHERE ... A remote RMI client runs SELECT (but not SELECT ... is that once we UPDATE a record from the client (via the RMI interface), all SELECT NEW ... queries

;  String q1 = " select distinct s_location "          ... ;   q1 = " select distinct s.location "          ... ;   String q2 = " select distinct s.location "        

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());     }   

extension. To install it: Open the Install dialog box by selecting Help Install New Software... . In ... .  Select the ObjectDB BIRT/ODA feature. Complete the installation by clicking Next twice ... and selecting New Data Source . Select ObjectDB Data Source from the list of available data source types

identification variables and SELECT result variables. Parameters : Instances of these classes that are assigned ... names with their capital city names: SELECT c.name, c.capital.name FROM Country c The c ... in the database, excluding Country entities: SELECT COUNT(e) FROM Object e WHERE TYPE(e) Country

them to accelerate query execution. Indexes are especially efficient for lookup and range queries: SELECT p FROM Point p WHERE p.x = 100 SELECT p FROM Point p WHERE p.x BETWEEN 50 AND 80 SELECT p FROM Point p ... . ObjectDB also uses indexes for sorting results and for projection: SELECT MIN(p.x) FROM Point p WHERE p.x

with full type safety. General query objects Execute SELECT , UPDATE and DELETE queries in JPA using ... (" SELECT ... FROM ... WHERE ..."); or Criteria query objects, as described below. For detailed usage ... that represent the query structure itself ( SELECT , UPDATE, or DELETE) and provide methods for refining

=" SELECT c FROM Country c") The @NamedQuery annotation has four elements: two required ... @NamedQuery ( name ="Country.findAll", query =" SELECT c FROM Country c") public class Country ... : @Entity @NamedQueries({ @NamedQuery ( name ="Country.findAll", query =" SELECT c FROM Country c

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

utilizes Jakarta Validation. Use this to explicitly enable , disable, or set validation to auto

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

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

a remove operation. To avoid dangling references, enable this feature only for fields that hold private

The JPA Metamodel API enables you to examine the persistent object model and retrieve details about managed classes, persistent fields, and properties, similar to how Java reflection provides this capability for general Java types. The Metamodel interface The main interface of the JPA Metamodel

CascadeType . ALL are also persisted. If global cascade persist is enabled , all reachable entities

and area exceed specified limits: SELECT c FROM Country c WHERE c.population :population AND c.area ... a specified limit: SELECT c FROM Country c WHERE c.population :population OR c.area :area Valid operands ... The following query retrieves all countries whose population does not exceed a specified limit: SELECT c FROM

an alternative way to delete entities. Unlike SELECT queries, which retrieve data from the database ... . Selective deletion The structure of DELETE queries is simpler than that of SELECT queries. DELETE queries

criteria queries, compound selections , expressions, predicates, orderings. Note that Predicate ... . Since: Jakarta Persistence (JPA) 1.0 CompoundSelection array ( Selection ... selections ) Create an array-valued selection item. Parameters: selections - selection items Returns: array-valued compound selection

Persistence (JPA) 1.0 Selection getSelection () Return the selection of the query, or null if no selection has been set. Inherited from AbstractQuery Returns: selection item. Since: Jakarta Persistence ... must be eliminated. Since: Jakarta Persistence (JPA) 1.0 CriteriaQuery multiselect ( Selection ... selections

It is getting more and more frustrating :( We've introduced distinct select instead of regular selection in our code (no changes else) and suddenly receive invalid identifiers in queries exceptions ... ) multiple times for different selections in the same query!! so after debugging the query returns

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

selecting Help Install New Software... In the [Work with] field enter the BIRT update site url. http ... /update-site/4.6  (Eclipse Neon, Oxygen) and press ENTER. Click the Select All button to select ... ] dialog box by selecting Help Install New Software... In the [Work with] field enter the ObjectDB

: Select File Import... Maven Existing Maven Projects and click Next . Select the points-console directory as Root Directory and press ENTER . Select the project and click  Finish . Run the project in Eclipse: Right click the project node and select Run As Java Application . Select Main - point and click OK .

) and selecting   New Class . Enter  guest as the package name - use  exactly that case ... node (in the [Project Explorer] window) and selecting New Folder (or  New Other... General Folder and clicking Next ). Select the project src folder as a parent folder, enter META-INF as a new

Eclipse: Select   File Import... Maven Existing Maven Projects and click  Next . Select the  guestbook-jee6 directory as Root Directory and press  ENTER . Select the project and click  Finish . Run the project in Eclipse: Right click the project node and select   Run As Run

the project zip file: Spring MVC JPA - Maven Project (8KB) Open the Maven project in Eclipse: Select   File Import... Maven Existing Maven Projects and click  Next . Select the  guestbook-spring directory as Root Directory and press  ENTER . Select the project and click  Finish

the project node (in the [Package Explorer] window), select   New Source Folder ... right clicking the new source directory node (in the [Package Explorer] window) and selecting   ... the [Project Explorer]) and select   New Folder. The parent folder should be resources. Enter META

NetBeans: Select File Open Project... . Select the points-console directory and click Open Project . Run the project in NetBeans: Select Run Run Main Project... (or F6 ). Click Select Main Class .

IntelliJ IDEA: Select File Open Project... . Select the points-console directory and click Open Project . Run the project in IntelliJ IDEA: Select Run Run Main Project... (or F6 ). Click Select Main Class .

and extract the project zip file: JPA Web App - Maven Project (6KB) Open the Maven project in Eclipse: Select   File Import... Maven Existing Maven Projects and click  Next . Select the  guestbook-web directory as Root Directory and press  ENTER . Select the project and click  Finish

] dialog box, e.g. by using File New Project... Select Java Web Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and click Next . Select GlassFish Server 3 (or above)  ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory

.g. by using File New Project... Select Java Web Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and click Next . Select Apache Tomcat 6 as the Server. Note ... and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory of the ObjectDB

: Select   File Open Project... . Select the  guestbook-web directory and click  Open Project . Run the project: Select Run Run Main Project... (or F6 ). Choose or define the server and click

We start by creating a new NetBeans Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Java Java Application and click Next . Choose a Project Name (e.g. Tutorial ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory

In this step we will add a simple chart to the report: Open the [New Chart] dialog box by dragging a  Chart from the [Palette] window and dropping it on the report design (.rptdesign) layout. In the [ Select Chart Type] tab select Tube as the chart type and click Next . In the [ Select Data

project in NetBeans: Select   File Open Project... . Select the  guestbook-jee6 directory and click  Open Project . Run the project: Select   Run Run Main Project... (or  F6

and selecting New Data Set . Select the data source that was created in the previous step (e.g. ObjectDB ... a specified range: SELECT p.x as x, p.y as y FROM Point p WHERE p.x BETWEEN :low AND :high Use copy

: Select   File Open Project... . Select the  guestbook-spring directory and click  Open Project . Run the project: Select   Run Run Main Project... (or  F6 ). Choose or define