| Re: [eclipselink-users] Re sultType for List |
The JPA spec requires Object[] to be returned for any query that returns multiple select values. Not that a List will be returned for multiple rows, only an Object[] for multiple select values (i.e. "Select id, name from foo" gives List<Object[]>). Returning Vector for this in TopLink Essentials was a bug, and I believe also fixed in TopLink Essentials. There is not way to configure EclipseLink to return a Vector for multiple select values. Note that if you only select one value, just the value is returned, no Object[]. Sessizlik wrote: > > Hi, > > I have a legacy project which is implemented at toplink and will be > upgraded to Glassfish 3.1.1. That is to say the most dramatic change will > be at persistence layer which will be upgraded to Eclipselink 2.x . > > However I have a little challenge. Before going further more and changing > codes I have searched eclipselink default behaviour for the > "createNativeQuery" and came across that it is returning array as a > default behaviour which is vector at toplink. > > 1) How can I return vector instead of Array? [1] > > 2) How can I globally set hint for queries? > > 3) Is there any performance problem because of changing default behaviour? > > Thanks > > [1] > http://www.eclipse.org/eclipselink/api/2.2/org/eclipse/persistence/config/ResultType.html > > ----- http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland http://www.eclipse.org/eclipselink/ EclipseLink , http://www.oracle.com/technology/products/ias/toplink/ TopLink Wiki: http://wiki.eclipse.org/EclipseLink EclipseLink , http://wiki.oracle.com/page/TopLink TopLink Forums: http://forums.oracle.com/forums/forum.jspa?forumID=48 TopLink , http://www.nabble.com/EclipseLink-f26430.html EclipseLink Book: http://en.wikibooks.org/wiki/Java_Persistence Java Persistence Blog: http://java-persistence-performance.blogspot.com/ Java Persistence Performance -- View this message in context: http://old.nabble.com/ResultType-for-List-tp32363335p32380126.html Sent from the EclipseLink - Users mailing list archive at Nabble.com.