| Sorting of hierarchical entities in EclipseLink [message #1034762] |
Fri, 05 April 2013 21:36  |
 Michael Burger
Messages: 2
Registered: April 2013 |
Junior Member |
|
|
Hello,
I have a simple hierarchical schema that looks like this:
CATEGORY 1:many PROPERTY 1:many PROPERTY_VALUE
I am successfully retrieving the entire tree of values from the root CATEGORY entity and would like to retrieve each subordinate PROPERTY_VALUE list in sorted order. A column in the database called ORDER_NBR has been created in order to provide a sort field.
I have tried both the @ORDER BY annotation on the PROPERTY entity as well as adding an ORDER BY clause to each named query that fetches a collection of PROPERTY_VALUEs. Neither of these seem to get the collection in any consistent order, let alone the expected ascending order.
Here is an excerpt from the log:
[EL Info]: 2013-04-05 15:42:17.036--ServerSession(621683982)--Thread(Thread[main,5,main])--EclipseLink, version: Eclipse Persistence Services - 2.3.2.v20111125-r10461
[EL Fine]: 2013-04-05 15:42:20.192--Thread(Thread[main,5,main])--Detected database platform: org.eclipse.persistence.platform.database.oracle.Oracle11Platform
[EL Config]: 2013-04-05 15:42:20.223--ServerSession(621683982)--Connection(2101902664)--Thread(Thread[main,5,main])--connecting(DatabaseLogin(...
...
Driver: Oracle JDBC driver Version: 11.2.0.1.0
[EL Info]: 2013-04-05 15:42:25.77--ServerSession(621683982)--Thread(Thread[main,5,main])--file:/D:/Workspaces/AIC_Java_Framework_3x_POC/AIC JAVA FW Test/classes/_ConfigSourceDB_SE login successful
[EL Fine]: 2013-04-05 15:42:25.832--ServerSession(621683982)--Connection(117311230)--Thread(Thread[main,5,main])--SELECT NAMESPACE_NM, CATEGORY_NM FROM ZYUSRJFWDV01.FT_CATEGORY WHERE (NAMESPACE_NM = ?)
bind => [com.config.test.propertylist.sort]
...
[EL Fine]: 2013-04-05 15:42:26.082--ServerSession(621683982)--Connection(117311230)--Thread(Thread[main,5,main])--SELECT PROPERTY_NM, CATEGORY_NM, NAMESPACE_NM FROM ZYUSRJFWDV01.FT_PROPERTY WHERE ((NAMESPACE_NM = ?) AND (CATEGORY_NM = ?))
bind => [com.config.test.propertylist.sort, categoryWithPropertyList]
...
[EL Fine]: 2013-04-05 15:42:26.176--ServerSession(621683982)--Connection(117311230)--Thread(Thread[main,5,main])--SELECT ORDER_NBR, PROPERTY_VALUE_NM, CATEGORY_NM, NAMESPACE_NM, PROPERTY_NM FROM ZYUSRJFWDV01.FT_PROPERTY_VALUE WHERE ((NAMESPACE_NM = ?) AND ((PROPERTY_NM = ?) AND (CATEGORY_NM = ?))) ORDER BY ORDER_NBR ASC
bind => [com.config.test.propertylist.sort, propertyList, categoryWithPropertyList]
Here you can see each successive SELECT as it works it way down the hierarchy with the final SELECT including the ORDER BY clause on the PROPERTY_VALUE table fetch. Yet when the final result is inspected, the PROPERTY_VALUE list is still out of order. I am attaching my entity classes as well as the persistence.xml.
Any thoughts would be appreciated.
Thanks
|
|
|
|
Powered by
FUDForum. Page generated in 0.01892 seconds
] 
Search
Help
Register
Login
Home
