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JPA Query API

Describes the API that JPA provides for running queries against the database. Queries are represented in JPA 2 by two interfaces - the old Query javax.persistence.Query JPA interface Interface used to control query execution. See JavaDoc Reference Page... interface, which was the only interfac ...

 
forum_thread

Issue with upper?

Hi, Query 1: SELECT DISTINCT $1, $2.lastName AS $O0 FROM com.lexware.vereinsverwaltung.verein.mitglied.Mitglied $1 LEFT JOIN $1.profile $2 ORDER BY UPPER($2.lastName) Correctly returns all the different lastName's for each $1 Now the same but with upper #1 2012-01-17 01:37 Hi, Query 1: SELECT DISTINCT $1 , $2 . lastName AS $O0 FROM com . lexware ...

 
forum_thread

Index causes increased memory usage

Hello, #1 2012-05-10 20:52 Hello, In an effort to increase the speed of our queries with our embedded ObjectDB system, we configured ...

 
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Adding indexes on existing entities.

Is it safe to add indexes on an existing entity class? Thanks. #1 2015-09-01 15:44 Is it safe to add indexes on an existing entity class? Thanks. ...

 
api-jpa

getDelegate()

Return the underlying provider object for the EntityManager, if available.(Method of javax.persistence.EntityManager)

 
forum_thread

Is there any GUI for creating/editing entity?

Hi, I'm new for JPA/JDO. How should I create/edit entity class? Is there any GUI?   In my searching easily, there is the jpa function of myeclipse, or Dail. http://www.myeclipseide.com/documentation/quickstarts/jpa/ http://www.eclipse.org/webtools/dali/   Please tell me your method usually for creating/editing entity and JPA/JDO things. I'm expecting the one like MySQL Workbench.    TIA :) #1 2011-02-14 01:37 Hi, I'm new for JPA/JDO. How should I create/edit entity class? Is there any GUI?   ...

 
forum_thread

Will ObjectDB support .Net and EntityFramework?

Hi, I'm porting an application POC from Java to C# with Entity Framework for data access. I was proving ObjectDB in the Java POC and i would like to keep ObjectDB datastore for C# POC. ¿Are there some ObjectDB's version or support for C# and Entity Framework? Thanks!   Cthulhu #1 2015-03-18 21:09 Hi, I'm porting an application POC from Java to C# with Entity Framework for data access. I was provi ...

 
forum_thread

explorer feature request: ability to auto refresh

Request for feature: Ability to auto-refresh an explorer view, say at regular intervals of a few seconds. (at a minimum one ought to be able to manually refresh, for example the list of persistent types). additionally, it would be useful to be able to view an embedded database (read only mode) via the explorer.   #1 2011-04-27 07:22 Request for feature: Ability to auto-refresh an explorer view, say at regular intervals of a few seconds. ...

 
issue

preUpdate-methods are called when there is no change

Dear Support Team, we ran into some difficulties with a database. When fetching a entity using the EntityManager and afterwards calling "iterator().next()" a transaction begin/commit will end up in updating the Entity even there was no change. We attached a simplified test case where only 2 reduced versions of the entities are available. But it still shows the unexpected behavior. To reproduce just run the "EntryPoint" class. Bug Version: 2.5.3 Priority: Normal Status: Closed Replies: 1 Type:  Bug ...

 
forum_thread

ObjectDB 2 has been released and is now more affordable

Today, after years of hard work, ObjectDB 2.0 was released and is available for download. In addition, in order to make ObjectDB more affordable, the pricing model was changed: #1 2010-09-26 21:45 Today, after years of hard work, ObjectDB 2.0 was released and is available for download. In addition, in order ...