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issue

JPQL Subqueries (JPA 1.0)

The JPQL (Java Persistence Query Language) supports defining subqueries, which are nested queries that are embedded in other queries. Subqueries are currently not supported by ObjectDB, and as a workaround, you can use a sequence of two or more queries, where the results of one query serves as a parameter in the next queries. JPA Feature Version: Priority: Low Status: Active Replies: 0 Type:  JPA Feature ...

 
issue

Dynamic Metadata (JDO 3.0)

JDO 3 introduces the ability to specify metadata of persistable types dynamically. ObjectDB 2 supports specifying metadata by: JPA XML Mapping Metadata JPA Annotations JDO XML Metadata (e.g. package.jdo) JDO Annotations All these JDO Feature Version: Priority: Low Status: Active Replies: 0 Type:  JDO Feature ...

 
page

What is new in ObjectDB 2.0?

ObjectDB 2.0 supports many new features and improvements, including: Most of the features of the new JPA 2.0 and JDO 2.2 APIs. User defined IDs (primary key) and sequences. Support of unlimited index keys size. SQL like queries (" ...

 
api-jpa

javax.persistence.Table

Specifies the primary table for the annotated entity.(Annotation of JPA)

 
issue

Support Attribute Conversion for Persistence

The @Converter annotation and the Attribute Converter interface have two big benefits: 1) They make it possible to persist as-yet-unsupported java types (in the example below, Period - part of the 1.8 java.time package. (It could just have well shown conversion to and from SQL Timestamp objects.  2) They also make it possible to persist custom objects that are fundamental to your domain in an efficient manner.  JPA Feature Version: 2.1.0 Priority: High Status: Active Replies: 0 Type:  JPA Feature ...

 
api-jpa

SecondaryTable.schema

(Optional) The schema of the table.(Annotation Element of javax.persistence.SecondaryTable)

 
issue

Feature Request: Adding map entries to DB in Explorer

Currently, collections can be edited but maps cannot be edited. For a database model that has a lot of static data that need to be entered into the database on multiple edits this presents as an inconvenience. It would be great, therefore, if we can edit maps straight from the explorer. Feature Request Version: 2.5.5 Priority: Normal Status: Active Replies: 0 Type:  Feature Request ...

 
forum_thread

Waterfall tree algorithm for more optimized version of objectdb or

hello , i heard its very good and new datastructure known as waterfall tree compared to btree. It could be good if you think and research some datastructure or take a look at waterfalltree Or it can be selectable by objectdb :   here what i talk about :  http://stsdb.com/stsdb-w4.0/technology/waterfalltree/overview   the documentation tells , it makes db very fast here is algorithm on youtube :  #1 2014-02-07 12:56 hello , i heard its very good and new datastructure known as waterfall tree compared to btree. It could be go ...

 
api-jdo

setIntField(pc, field, currentValue, newValue)

Mark the field as modified by the user.(Method of javax.jdo.spi.StateManager)

 
api-jdo

setByteField(pc, field, currentValue, newValue)

Mark the field as modified by the user.(Method of javax.jdo.spi.StateManager)