| Re: [eclipselink-users] Correct programmatic way to determine whether an attribute is unique? |
The meta-model does not provide complete accessed to the JPA meta-data, it provides mainly only items required for use with the criteria API. You can either get the meta-data directly from Java reflection, or access the EclipseLink ClassDescriptor and mappings to access the information from the EntityManager's Session. ljnelson wrote: > > Having a spin through the metamodel API (and trying to stay awake) and > wanted to know what the appropriate recipe is to figure out that an > entity's > basic, say, String attribute is annotated with unique="true". > > I'm not seeing programmatic methods in here that would allow me to get at > whatever is encoded in either the @Column annotation or its xml override, > so > that makes me think I'm looking in the wrong place. > > Best, > Laird > > -- > http://about.me/lairdnelson > > ----- 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/Correct-programmatic-way-to-determine-whether-an-attribute-is-unique--tp32647264p32725266.html Sent from the EclipseLink - Users mailing list archive at Nabble.com.