About Data Set

api-jpa

javax.persistence.NoResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult()is executed on a query and there is no result to return.(Exception of JPA)

 
api-jpa

javax.persistence.NonUniqueResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult() is executed on a query and there is more than one result from the query.(Exception of JPA)

 
api-jpa

javax.persistence.QueryTimeoutException

Thrown by the persistence provider when a query times out and only the statement is rolled back.(Exception of JPA)

 
issue

InternalException during producer/consumer scenario

Hi, I'm trying to use objectdb in a producer/consumer scenario. Producer threads put message objects into a table while consumer threads remove the objects based on age, priority, etc. There are 2 main motivations for using objectdb for this purpose rather than a queue or similar data structure: 1) The consumer can select the "next" object based on a range of potentially complex criteria. 2) The number of objects produced can be potentially exceed available memory so can be held on disk within the objectdb file. ... objectdb for this purpose rather than a queue or similar data structure: 1) The consumer can select the "next" object based on a ... "next" object is selected based on a query with MaxResults set to 1 and LockMode set to PESSIMISTIC_WRITE. This results in the exceptions ...

 
api-jpa

javax.persistence.RollbackException

Thrown by the persistence provider when EntityTransaction.commit() fails.(Exception of JPA)

 
api-jpa

javax.persistence.TransactionRequiredException

Thrown by the persistence provider when a transaction is required but is not active.(Exception of JPA)

 
api-jdo

javax.jdo.JDOHelper

This class can be used by a JDO-aware application to call the JDO behavior of PersistenceCapable instances without declaring them to be PersistenceCapable.(Class of JDO)

 
forum_thread

@JoinColumn(nullable=false)

  During the evaluation of ObjectDB (We're currently developing with EclipseLink/mysql) I noticed was the following: ... Is there a setting, that I have/need to set; to prevent the object from being saved? Or did I do something wrong? ... See JavaDoc Reference Page... ) because data in ObjectDB is not mapped to SQL, tables and columns. But you can ...

 
doc

java.lang.RuntimeException

(Exception of java.langException RuntimeException)

 
forum_thread

Replication issue, Replayer failing due to NullPointerException.

I'm getting replication errors and upon trying to play the replayer I get a NullPointerException which i'm also seeing in the slave logs when it's trying to replicate... ... on the slave; "/usr/test/backend/db/" is the data path and where all the DB's are on the master. I cannot get an ... all DB's, this also seems like a bug. I have recording set to write only.   ...