[jboss-user] [JBoss Seam] - Re: Complex validation

wsollers do-not-reply at jboss.com
Sun Feb 11 15:05:57 EST 2007

Could you:

  | @ValidatorClass ( GreaterThanValidator.class )
  | @Retention ( RetentionPolicy.RUNTIME )
  | @Target ( { ElementType.METHOD } )
  | public @interface GreaterThan {
  | 	String elExpr = null;
  | 	String mesg = "#{someMessageKey}";
  | }

And then in the validator class get a reference to the Seam interpolator and invoke the el-binding cast it to Comparable and compare it to the annotated data element.

Could do the same for less than, either or, just a thought for the simpler things. To do entity exists checks I use a custom interceptor that has access to the entity manager to do the queries. 

I am curious about this as well as I have lot's of these kind of things floating around and would really like to standardize them and will research it further.

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