Today I explain what ChannelFactory caching in the WCF 4.5 framework is. With the help of this new feature in .NET we can cache the service instance. Microsoft has introduced a new property for the ClientBase<T> class; the property name is CacheSetting. We can set the cachesetting with the help of the CacheSetting enum.
Here are the values of the Enum:
|
Name |
Description |
|
System.ServiceModel.CacheSetting.AlwaysOn |
All instances of Client will use the same channel factory. |
|
System.ServiceModel.CacheSetting.AlwaysOff |
All instances of the Client would use different channel factories. This is useful when each endpoint has different security requirements and it makes no sense to cache. |
|
System.ServiceModel.CacheSetting.Default |
All instances of Client would use the same channel factory except instance #4. Instance #4 would use a channel factory that is created specifically for its use. This setting would work for scenarios where a particular endpoint needs different security settings from the other endpoints of the same ChannelFactory type (in this case IService). |
Here is sample code for the Default CacheSetting:
class Program
{
static void Main(string[] args)
{
ClientBase<IService1>.CacheSetting = System.ServiceModel.CacheSetting.Default;
using (ServiceReference1.Service1Client client = new Service1Client()) {
}
}
}
Here is sample code for the AlwaysOn CacheSetting:
static void Main(string[] args)
{
ClientBase<IService1>.CacheSetting = System.ServiceModel.CacheSetting.AlwaysOn;
using (ServiceReference1.Service1Client client = new Service1Client()) {
}
}
Here is sample code for the AlwaysOff CacheSetting:
static void Main(string[] args)
{
ClientBase<IService1>.CacheSetting = System.ServiceModel.CacheSetting.AlwaysOff;
using (ServiceReference1.Service1Client client = new Service1Client()) {
}
}
Reference from
http://msdn.microsoft.com/en-us/library/hh314046%28v=vs.110%29.aspx
http://msdn.microsoft.com/en-us/library/system.servicemodel.cachesetting%28v=vs.110%29.aspx