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Forum
22

Puzzler: Not getting cascades on read from Spring context

Fetching doesn't work by default for detached objects. Please read see this issue and as a workaround
Issue
22

query returns failed to read from database file

we have since today exceptions on executing some queries like this: Failed to read from file 'F:\Hummingbird\Objectdb\db\coreSystemDb.odb' we are using objectdb 2.7.2_05 in the objectdb log there is no message       it seams that this is only happening directly after startup (creating the database
Forum
22

Failed to read the value of field ... using reflection

Hello, we got following exception. Can you explain me, what is the reason of this exception?   Caused by: com.objectdb.o.UserException: Failed to read the value of field field com.btc.ep.expression.formula.bl.dmos.Valuation.variableSettings using reflection at com.objectdb.o.MSG.a(MSG.java
Issue
22

reading from table gives Unexpected exception

reading from table gives Unexpected exception [ObjectDB 2.6.3] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_131 (on Windows 10 10.0). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb
Forum
21

Failed to read the value of field using reflection (error 363)

Failed to read the value of field using reflection (error 363)
Forum
21

Internal ObjectDB error by read the primary key

Internal ObjectDB error by read the primary key
Forum
21

WORM (Write once read many) support

WORM (Write once read many) support
Manual
20

Locking in JPA

supported pessimistic lock modes are: PESSIMISTIC_READ - which represents a shared lock. PESSIMISTIC_WRITE ... cannot be granted: A PESSIMISTIC_READ lock request fails if another user (which is represented by ... a PESSIMISTIC_READ lock on that database object. For example, consider the following code fragment: em1
Manual
14

ObjectDB Developer's Guide [2018-08-07]

language is essential. Further Reading and Resources This guide focuses mainly on practical issues in order to make the reader proficient in a short time. After reading this guide you may want to extend your knowledge of JPA by reading a book on JPA.  
Manual
14

ObjectDB Developer's Guide [2018-10-28]

language is essential. Further Reading and Resources This guide focuses mainly on practical issues in order to make the reader proficient in a short time. After reading this guide you may want to extend your knowledge of JPA by reading a book on JPA.