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1

Problems down-casting in WHERE clause

in JPQL because messageList is a List and navigation from a list must be done by an additional variable. ObjectDB supports navigation from lists as an extension, so the following query is valid
Forum
1

query on calendar class

.persistence.PersistenceException Navigation from 'java.util.Calendar' through 'DAY_OF_WEEK ... ) Caused by: com.objectdb.o.UserException: Navigation from 'java.util.Calendar' through 'DAY_OF_WEEK
Result
1

ObjectDB version 2.2.5

Version 2.2.5 Added support of navigation through collections (as a JPQL extension). Added version display to the Server and Explorer About dialog boxes. Fixed an UPDATE/DELETE query bug in client-server mode. Fixed an ArrayIndexOutOfBoundsException in retrieval of large objects. Fixed Explorer
Result
1

ObjectDB version 2.2.8

Version 2.2.8 Fixed a critical bug in extensive removal operations of large objects. Improved the performance of navigation through an inverse (mapped by) field if the owner field is indexed. Fixed a LEFT OUTER JOIN bug. Fixed a bug in parsing queries with parenthesis followed by NOT. Fixed a bug
Result
1

ObjectDB version 2.3.7

Version 2.3.7 Fixed a critical issue that may cause database corruption (issue #630). Initial attempt to enable navigation through lazy loading from detached objects (feature request #326). Improved toString of criteria queries to use aliases (issue #127). Fixed automatic variable naming in
Result
1

ObjectDB version 2.4.0

very slow query execution when using entity parameters. Fixed issues in navigation through detached objects.
Forum
1

@OneToOne query issue with OR and IS NULL

WHERE a.another IS NULL OR b.counter = 0 You missed the A instance with no another because navigation
Issue
1

[Explorer] Executing Queries

The new Explorer of ObjectDB 2 supports retrieval of database objects by classes and navigation. Retrieval of database objects by executing queries visually should also be supported. This is one of the features that have been supported by the old Explorer of ObjectDB 1. It has been temporarily
Issue
1

[ObjectDB 2.5.5_03] Unexpected exception (Error 990)

overlooked the NULL navigation thing. Sorry. Your suggested query doesn't work but I modified it a little
Issue
1

com.objectdb.o.InternalException NPE

.objectdb.o.REG.S(REG.java:822) The stack trace indicates navigation through a broken reference