About GROUP BY

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Forum
7

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
7

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
Forum
7

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
Issue
7

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
JDO Doc
7

javax.jdo.FetchPlan

javax.jdo Interface FetchPlan Fetch groups are activated using methods on this interface ... the fetch group to the set of active fetch groups. Add the fetch group to the set of active fetch groups ... all active groups leaving no active fetch group. Remove all active groups leaving no active fetch
JPA Doc
6

javax.persistence.criteria.AbstractQuery

to the given entity Since: JPA 2.0 List< 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
Manual
6

Database Explorer [2011-09-21]

directory a path to it has to be specified. Alternatively, you can run the Explorer by double clicking explorer.jar or by running explorer.exe (on Windows) or explorer.sh (on Unix/Linux, after editing ... . Recently used databases can also be opened using the File > Recent Connections command. By default
Manual
6

Database Explorer

directory a path to it has to be specified. Alternatively, you can run the Explorer by double clicking explorer.jar or by running explorer.exe (on Windows) or explorer.sh (on Unix/Linux, after editing ... . Recently used databases can also be opened using the File > Recent Connections command. By default
Manual
5

Retrieving JPA Entity Objects

of entity classes and to keep them simple as possible. Retrieval by Class and Primary Key Every entity object can be uniquely identified and retrieved by the combination of its class and its primary key ... except that if the entity object is not already managed by the EntityManager a hollow object
JPA Doc
5

javax.persistence.EntityManager

that are related or grouped by the application, and which must be colocated in their mapping to a single ... . The EntityManager API is used to create and remove persistent entity instances, to find entities by their primary key, and to query over entities. The set of entities that can be managed by a given EntityManager