oa_ds_info default constructor

This is the default constructor for oa_ds_info that initializes all the class members to NULL or DAMOBJ_NOTSET.

oa_ds_info()
{
this((String)null, ip.DAMOBJ_NOTSET, ip.DAMOBJ_NOTSET,
(long)ip.DAMOBJ_NOTSET, (String)null, (String)null);
}