org.z3950.zing.cql
Class UnknownRelationException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          org.z3950.zing.cql.PQFTranslationException
              org.z3950.zing.cql.UnknownRelationException

All Implemented Interfaces:

java.io.Serializable

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.

Version:

$Id: UnknownRelationException.java,v 1.2 2002-11-06 20:13:45 mike Exp $

See Also:

Serialized Form

Constructor Summary

UnknownRelationException(java.lang.String s)
Creates a new UnknownRelationException.

Method Summary

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

UnknownRelationException

public UnknownRelationException(java.lang.String s)

Creates a new UnknownRelationException.

Parameters:

s - The relation for which there was no PQF configuration.