JBOSSAOP学习笔记-AOP的优点

 public class InvalidSQlException extends SQLException
{
   InvalidSQLException(SQLException ex)
   {
       super(ex.getMessage(), ex.getSQLState(), ex.getErrorCode());
   }
}

public class SQLExceptionaspect
{
   public Object handleSqlException(Invocation invocation) throws Throwable
   {
      try
      {
         return invocation.invokeNext();
      }
      catch (SQLException ex)
      {
         if (isVendorInvalidSqlErrorCode(ex.getErrorCode())) throw new InvalidSQLException(ex);
         if (isVendorDeadlockErrorCode(ex.getErrorCode()) throw new SQLDeadlockException(ex);
         ... and so on ...
      }
   }
   ... impl of isVendor methods ...
}

<aspect class="SQLExceptionAspect" scope="PER_VM"/>
<bind pointcut="call(* $instanceof{java.sql.Statement}->execute*(..))">
   <advice name="handleSqlException" aspect="SQLExceptionAspect"/>
</bind>