Code example for QueryException

0
		if ( args.size() != 2 && args.size() != 3 ) {
			throw new QueryException( "convert() requires two or three arguments" );
		} 
		String type = ( String ) args.get( 1 );
 
		if ( args.size() == 2 ) {
			return "{fn convert(" + args.get( 0 ) + " , " + type + ")}";
		} 
		else { 
			return "convert(" + args.get( 0 ) + " , " + type + "," + args.get( 2 ) + ")";
		} 
	} 
 
} 
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