public Person Fetch(string personId)
{
if (ETagCache.ExistsForCurrent())
{
var request = WebOperationContext.Current.IncomingRequest;
//make sure you check this, otherwise standard WCF POST connections will fail:
if (request.Method == "GET" || request.Method == "HEAD")
{
request.CheckConditionalRetrieve(ETagCache.GetForCurrent());
}
}
//fake wait - e.g. going off to a cloud service or moderate processing load:
Thread.Sleep(250);
Person person = null;
var iPersonId = int.Parse(personId);
using (var context = new SampleEntities())
{
person = context.People.Single(x => x.PersonId == iPersonId);
}
var eTag = Guid.Parse(person.ETag);
ETagCache.SetForCurrent(eTag);
var response = WebOperationContext.Current.OutgoingResponse;
if (response != null)
{
response.SetETag(eTag);
}
return(person);
}
public Person Fetch(string personId)
{
if (ETagCache.ExistsForCurrent())
{
var request = WebOperationContext.Current.IncomingRequest;
//make sure you check this, otherwise standard WCF POST connections will fail:
if (request.Method == "GET" || request.Method == "HEAD")
{
request.CheckConditionalRetrieve(ETagCache.GetForCurrent());
}
}
//fake wait - e.g. going off to a cloud service or moderate processing load:
Thread.Sleep(250);
Person person = null;
var iPersonId = int.Parse(personId);
using (var context = new SampleEntities())
{
person = context.People.Single(x => x.PersonId == iPersonId);
}
var eTag = Guid.Parse(person.ETag);
ETagCache.SetForCurrent(eTag);
var response = WebOperationContext.Current.OutgoingResponse;
if (response != null)
{
response.SetETag(eTag);
}
return person;
}
public void Update(string personId, string lastName, string firstName)
{
Guid oldETag;
var newETag = Guid.NewGuid();
using (var context = new SampleEntities())
{
var iPersonId = int.Parse(personId);
var guest = context.People.Single(x => x.PersonId == iPersonId);
oldETag = Guid.Parse(guest.ETag);
guest.LastName = lastName;
guest.FirstName = firstName;
guest.ETag = newETag.ToString();
context.SaveChanges();
}
ETagCache.Replace(oldETag, newETag);
}
public void Update(string personId, string lastName, string firstName)
{
Guid oldETag;
var newETag = Guid.NewGuid();
using (var context = new SampleEntities())
{
var iPersonId = int.Parse(personId);
var guest = context.People.Single(x => x.PersonId == iPersonId);
oldETag = Guid.Parse(guest.ETag);
guest.LastName = lastName;
guest.FirstName = firstName;
guest.ETag = newETag.ToString();
context.SaveChanges();
}
ETagCache.Replace(oldETag, newETag);
}
