@Vetoed vs. <scan> and <exclude>

[juergen.zimmermann]

Is the new @Vetoed annotation in CDI 1.1 the same as using <scan> and <exclude> in beans.xml?

[mkouba]

Hi Juergen,

It depends. Basically it has the same effect (ProcessAnnotatedType is not fired and no corresponding bean exists). However  the class matching an exclude filter is de facto completely excluded from discovery unlike @Vetoed class which is discovered but not considered a bean (it does not meet the conditions mentioned in the spec: "3.1.1 Which Java classes are managed beans?" and "3.2 Session beans"). And of course scanning filters are descriptor-specific unlike @Vetoed (this might be important e.g. when writing Arquillian integration tests).