ServicedComponent Class
Assembly: System.EnterpriseServices (in system.enterpriseservices.dll)
'Declaration <SerializableAttribute> _ Public MustInherit Class ServicedComponent Inherits ContextBoundObject Implements IRemoteDispatch, IDisposable, IServicedComponentInfo 'Usage Dim instance As ServicedComponent
/** @attribute SerializableAttribute() */ public abstract class ServicedComponent extends ContextBoundObject implements IRemoteDispatch, IDisposable, IServicedComponentInfo
SerializableAttribute public abstract class ServicedComponent extends ContextBoundObject implements IRemoteDispatch, IDisposable, IServicedComponentInfo
Under certain conditions, a class that is derived from ServicedComponent that runs in a COM+ application may stop responding. This problem is caused by an Activity deadlock. Activities can deadlock on multithreaded applications because of an asynchronous cleanup of component references. To work around this problem, call the Dispose method when you complete work with objects derived from ServicedComponent. For more information, see http://support.microsoft.com/default.aspx?scid=kb;en-us;327443.
Note |
|---|
| Client code must call Dispose on serviced components to ensure proper operation. |
The following code example demonstrates how to expose a class as a configured COM component.
import System.*;
import System.EnterpriseServices.*;
/** @assembly ApplicationName("Calculator")
*/
/** @assembly ApplicationActivation(ActivationOption.Library)
*/
/** @assembly System.Reflection.AssemblyKeyFile("Calculator.snk")
*/
public class Calculator extends ServicedComponent
{
public int Add(int x, int y)
{
return x + y;
} //Add
} //Calculator
To deploy this class as a configured COM component, you must generate a strong key, compile the class as a library, and register the library. These three steps are accomplished by the following three commands.
sn -k Calculator.snk csc /t:library Calculator.cs regsvcs Calculator.dll
System.MarshalByRefObject
System.ContextBoundObject
System.EnterpriseServices.ServicedComponent
System.EnterpriseServices.CompensatingResourceManager.Compensator
System.EnterpriseServices.RegistrationHelperTx
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
Note