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9

What is new in ObjectDB 2.0?

configurable database page cache. Designed to support very large database files (terabytes). Reducing round
Manual
9

WHERE clause (JPQL / Criteria API)

"), a)     ) ); See the Logical Operators page for explanations on boolean expressions and predicates that can be used in a criteria query WHERE clause.
Manual
9

JPA / JDO Class Enhancer

> ... Complete ObjectDB Maven projects are available for download on the Tutorial pages
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9

Upgrade from ObjectDB 1.0

The following pages should be read by ObjectDB 1.0 users: If you need help in upgrading your application from version 1.0 to version 2.0 - please feel free to contact ObjectDB Support.
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9

Posting to ObjectDB Website - Important Instructions

and output). Your published Java code should be formatted as the sample code at the bottom of this page
Issue
6

Unexpected exception (Error 990) on find

) [2] Unexpected total page count: 206592 (expected 206563) BTree Value Errors ... ) Page Relation Errors -------------------- [1] Page #96658 unexpected exception: null [2] Page #96658 last key is null, parent page #144908 next key is 'Elementarprodukt:400000100465140:7:1:' [3
Forum
5

JPA query of a Set of terms

? For example, suppose I have a table that maps a search terms to pages: @Entity public class SearchIndex { @Index SearchTerm term; @Index Page page; } Now suppose I have an array ... that are already persisted. em.createQuery(     "SELECT DISTINCT si.page FROM SearchIndex si
Forum
4

Soft Reference Object Cache Recommendation

cache and use 1 MB for the ObjectDB Datastore page file cache with page file size of 64 KB.  Here are relevant objectdb.conf settings: page="64kb" /> page file cache keeping strong references to the pages that comprise the data
Forum
4

ObjectDB's Database Doctor Incorrect Error Report

. Have you set the database page size to 256KB? The maximum supported page size is 64KB, but unfortunately ... there will be a clear limit of 64KB. Thank you for this report. To avoid this error use page size of 64KB or ... page size?  For my use case, this would make 4 less disk accesses in the Amazon AWS EC2 provisioned
Issue
4

Use temporary files to enable very large transactions

. the total size of database pages that have to be replaced) is limited by the JVM heap size. Supporting ... that can address your needs. Particularly the unlimited size. The memory problem is with Page ... to support unlimited number of Page instances. Regarding a new maximum for transaction size. In the long term