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Question about overriding default equals and hashcode

(since ObjectDB supports user defined methods in queries as an extension to JPQL and JDOQL

selecting objects that have a particular key/value in persistant HashMap

' This is not a valid JPQL query but an extension that ObjectDB should support. If you need a more efficient

com.objectdb.o.NLV cannot be cast to com.objectdb.o.CMV

We are using ObjectDB 2.5.1_04. The following JPQL query causes an internal exception: SELECT COUNT(r) FROM RecordingMetaData AS r WHERE ((r.mapFromCli LIKE '' ESCAPE '\')) The exception: Caused by: java.lang.IllegalStateException: com.objectdb.o.InternalException: Unexpected

How to query for list of lists ?

, so this is an invalid JPQL query. SELECT s FROM PulseDataWareHouse w JOIN w.reviewSnippets s

Query with FETCH JOIN returns multiple results instead of one.

? Is it something specific to ObjectDB? Is it a bug? This behavior appears with JPQL and with equivalent

Native ObjectDB Support for EnumSet ?

/JPQL query for example: SELECT e FROM MyEntity e JOIN e.enumSet item WHERE item = :arg support Support

Different behavior for casting and not casting

. Since casting in not part of JPQL and rarely used I am afraid it might not be the last problem

ObjectDB 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 display of user

ObjectDB 2.5.1

) relationships. Fixed a bug in using IN expression in criteria queries. Fixed processing an IN(:param) expression in JPQL queries.

Strange Error with Criteria API and Sorting

the ORDER BY clause". This is not just an ObjectDB limitation but a known JPQL and also SQL limitation

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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