Re: [iPlanet-JATO] Finding the database column length

Question

This is the technique I would recommend. If you'd like to wrap this
mechanism up in the model class itself, create a subclass of QueryModelBase
that provides such a method and use that as the base class for all your
QueryModels.
Todd
----- Original Message -----
From: "Craig V. Conover" <craig.conover@S...>
Sent: Friday, October 19, 2001 12:15 PM
Subject: Re: [iPlanet-JATO] Finding the database column length
Chidu,
The result set that you get back is a JDBC ResultSet, not a "JATO" resultset. In ND, everything was wrapped in a "spider" data
structure, and therefore, difficult to get to the underlying datastructure, in many cases. In some case ND made it easier to do
certain things, and in other ways, made it more difficult or impossible(like seeing the SQL for an insert, update, delete).
>
Anyway, looking at the java.sql package, you can do this.
java.sql.ResultSet rs = <jata-model>.getResultSet();
java.sql.ResultSetMetaData rsMeta = rs.getMetaData();
// not sure if this is what you need, but it was the closest thing I couldfind
int colSize = rsMeta.getColumnDisplaySize(int column);
There are numerous other methods in the ResultSetMetaData interface thatmay be of use as well.
>
c
chidusv@y... wrote:
Hi,
How do I find out the length of a database column in a data model? In
NetDynamics, we can do dataobject.getDataField(<field
name>).getColumnLength(). Is it possible to achieve this in JATO
without using a resultset?
Thanks,
Chidu.
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>>
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>
>
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>
>
>
>
>
>
>

Answer 1

This is the technique I would recommend. If you'd like to wrap this
mechanism up in the model class itself, create a subclass of QueryModelBase
that provides such a method and use that as the base class for all your
QueryModels.
Todd
----- Original Message -----
From: "Craig V. Conover" <craig.conover@S...>
Sent: Friday, October 19, 2001 12:15 PM
Subject: Re: [iPlanet-JATO] Finding the database column length
Chidu,
The result set that you get back is a JDBC ResultSet, not a "JATO" resultset. In ND, everything was wrapped in a "spider" data
structure, and therefore, difficult to get to the underlying datastructure, in many cases. In some case ND made it easier to do
certain things, and in other ways, made it more difficult or impossible(like seeing the SQL for an insert, update, delete).
>
Anyway, looking at the java.sql package, you can do this.
java.sql.ResultSet rs = <jata-model>.getResultSet();
java.sql.ResultSetMetaData rsMeta = rs.getMetaData();
// not sure if this is what you need, but it was the closest thing I couldfind
int colSize = rsMeta.getColumnDisplaySize(int column);
There are numerous other methods in the ResultSetMetaData interface thatmay be of use as well.
>
c
chidusv@y... wrote:
Hi,
How do I find out the length of a database column in a data model? In
NetDynamics, we can do dataobject.getDataField(<field
name>).getColumnLength(). Is it possible to achieve this in JATO
without using a resultset?
Thanks,
Chidu.
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>>
>>
>>
>>
>
>
>
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>
>
>
>
>
>
>