About GROUP BY

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JDO Doc
10

javax.jdo.PersistenceManagerFactory

addFetchGroups( FetchGroup... groups) Add the FetchGroups to the set of active fetch groups. Add the FetchGroups to the set of active fetch groups. FetchGroups are made unmodifiable before being added ... , removeFetchGroups, getFetchGroups, and removeAllFetchGroups are internally serialized. Parameters: groups
JDO Doc
10

javax.jdo.spi.PersistenceCapable

javax.jdo.spi Interface PersistenceCapable A class that can be managed by a binary-compatible JDO ... environment. The Reference Enhancer also adds code to implement the methods defined by PersistenceCapable. The extra methods in the PersistenceCapable interface might be generated by pre-processing a .java
Forum
9

Help with JPA2 Criteria and conditional operator grouping

)              )));   System.out.println("Query: " + c); But I can can never get the grouping to occur ... persistence.xml shows the grouping happening. I've had to dumb down the domain model ... and for the test case. Please try build 2.2.8_04 that should fix the bug. That fixed the conditional grouping
Issue
9

Support for roles/groups in ObjectDB

ObjectDB should incorporate roles/group in ObjectDB config file? I see no support for this. I would like to place several users under a given group or role, but I see no way of doing this as ... , there could be a role/group element which would categorise the user further. This would help in authentication.   Thanks st.clair.clarke
Issue
9

Mapped by fields are not initialized by JOIN FETCH in queries

As demonstrated in this forum thread, a mapped by collection field with lazy fetch mode is not initialized in results of a query that uses JOIN FETCH on that collection field (when enhancement is used).   Build 2.4.1_06 fixes this issue (fields are now initialized and the test in the forum passes
Forum
9

ObjectDB Roles and Groups

Hello, How can I incorporate roles/group in ObjectDB config file? I see no support for this. For example, I would like to place several users under a given group or role, but I see no way of doing this as no such element is present  in the config file. Is it possible to have this? Currently
JDO Doc
8

javax.jdo.FetchGroup

the default fetch group via the API does not affect the members defined by this category. Using ... javax.jdo Interface FetchGroup FetchGroup represents a named fetch group for a specific class or interface. A fetch group instance identifies the name of the class or interface, the list of members
JPA Doc
8

javax.persistence.criteria.Subquery

< Expression> getGroupList() Return a list of the grouping expressions. Return a list of the grouping expressions. Returns empty list if no grouping expressions have been specified. Modifications to the list do not affect the query. Returns: the list of grouping expressions Since: JPA 2.0 Predicate
Forum
7

java.lang.NullPointerException when using ORDER BY

== 0)) ORDER BY r.startDateTime DESC If we remove the ORDER BY part, the query completes OK ... : Caused by: java.lang.IllegalStateException: com.objectdb.o.InternalException: Unexpected internal ... more                                                                                           Caused by: com.objectdb.o.InternalException: Unexpected
Forum
7

Mapped By Fetch is very Slow

Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah ... , go the MyEntity class and remove "mapped-by". You obtain 1 second max of query fetch. So my performance issue ... .ALL,mappedBy = "myEntity") // Test by adding / remove "mappedBy" public MyEntityChild getEntityChild