Storing datasource and its column names in session

Hi All,

I want to store datasource in session.
Also i want to store the datasource's column names also.
ie, suppose the datasource resultset has like this

first name       address

xxxxxx              tytytyt
yyyyy               kjksjlg

how can i store session.add("variable1", first name)
session.add("variable2", address)

Any suggesions will be really helpful

Thanks