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Performance and memory usage of queries

    em.getTransaction().commit(); On update ObjectDB prepares all the revised pages in memory before ... size of database pages that have to be replaced) is limited by the JVM heap size. support Support

Explorer in 2.3

servers, it may be faster for local files. 3. On the Query page, please add a checkbox to request ... above are described in the Explorer page in the new 2.3 manual. In addition, in the query panel

ObjectDB embeddable Springboot

(like MySQL), but also an embedded mode (like Derby). See this page. > How does odb handle byte ... ). > How do you create multiple dbs. See this documentation page. > Finally is there a gui to examine the schema? Yes. The Explorer. support Support

TemporalType injection with Calendar using JPA

that this could be confusing. However, that page starts with the following definition: The term persistable types ... are more restrictive, as explained on the primary key page. Probably Calendar may be supported in

impossible to drop a table with 50 million objects

. Alternatively you may try using the undocumented setting of temporary page file, which increases the maximum ... . Accordingly you can try running the Explorer with this setting (-Dobjectdb.temp.page-file=true). support Support

virtual servers and one file

> <size initial="16mb" resize="16mb" page="2kb" /> <recovery enabled="true" sync="true" path="." max ... > <database> <size initial="16mb" resize="16mb" page="2kb" /> <recovery enabled="true" sync="true" path

Database size is much larger than expected (x2)

.ImageSogou     image.Meta     image.Page     image.Thumb     image.URI 7 NON persistable types ... >, that extends the <URI>. So is <Page>, <Music>.... While the super class store the real data

Suspected memory leak

The screen shots may indicate a problem in the page cache (which keeps too many pages

UserException - Object User#2 belongs to another EntityManager

Hi! Scenario's steps: 1. User goes to his profile, a JSF page. 2. @RequestScoped CDI bean UserDataB loads the current user of the session at each request, by using @Stateless bean UserC#findUserById(Long id) 3. JSF page's @RequestScoped CDI bean AnotherB loads trades of that user, by using

I can't get cascading delete to work in JDO

" on this old documentation page). Build 2.7.5_04 implements cascading delete in JDO. Your NetBeans ... ) {             this.id = id;         }     } } support Support I had not looked at that documentation page

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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