I am sure that a lot of you need sometimes the same think as me. I have a simple search that applies one input to more search parameters. But I did not find any nice way to change 'AND'ed criteria to 'OR'ed.

As I was hacking it, I did this:

...
public class SimplePersonList extends EntityQuery {
....
protected String getRenderedEjbql() {
 String ejbql = super.getRenderedEjbql();
 return ejbql.replaceAll(" and ", " or ");
}
....

Tada thats it and works.
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Do you have a better way to do this? I consider my version as a little hack and expect that Seam also expects requirements as I need.