- All Implemented Interfaces:
public class UnknownRelationException
- extends PQFTranslationException
Exception indicating that a relation was not recognised.
At compilation time, we accept any syntactically valid relation;
but when rendering a tree out as PQF, we need to translate the
relations into sets of Type-1 query attributes. If we can't do
that, because the PQF configuration doesn't know about a relation,
we throw one of these babies.
- See Also:
- Serialized Form
|Methods inherited from class java.lang.Throwable
fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
public UnknownRelationException(String s)
- Creates a new UnknownRelationException.
s - The relation for which there was no PQF configuration.
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