question: private boolean updateStatementData ( StatementData sdata , Matcher matcher , String toRegex ) { if ( transformTables ) return true ; if ( matcher == null ) return true ; String schema = sdata . getDefaultSchema ( ) ; if ( schema == null ) return true ; matcher . reset ( schema ) ; if ( matcher . matches ( ) ) { String oldSchema = schema ; sdata . setDefaultSchema ( matcher . replaceAll ( toRegex ) ) ; if ( logger . isDebugEnabled ( ) ) logger . debug ( "Filtered event schema name: old=" + oldSchema + " new=" + sdata . getDefaultSchema ( ) ) ; return true ; } return false ; }
target:  updateStatementData updates the schema name of the given StatementData object if it matches the regular expression.<br/> If transformTables flag is set, this does nothing.