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# TAO::Upcall_Command Class Reference

"ABC" that all operation-specific command objects must subclass. More...

`#include <Upcall_Command.h>`

Inheritance diagram for TAO::Upcall_Command:

[legend]
List of all members.

## Public Member Functions
virtual | ~Upcall_Command (void)
| Destructor.
virtual void | execute ()=0
| Execute the upcall.

## Detailed Description

"ABC" that all operation-specific command objects must subclass.

The actual upcall into a servant is executed through a concrete `Upcall_Command` object. This is necessary to simplify upcall interactions in the presence of interceptors, such as when the `send_exception()` interception point must be invoked when the servant operation throws an exception.

## Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO::Upcall_Command::~Upcall_Command | ( | void |  | ) | `[virtual]`

| Destructor.

## Member Function Documentation

virtual void TAO::Upcall_Command::execute | ( |  | ) | `[pure virtual]`

| Execute the upcall. Implemented in POA_CORBA::_get_policy_type_Policy, POA_CORBA::copy_Policy, POA_CORBA::destroy_Policy, POA_CORBA::_is_a_Policy_Upcall_Command, POA_CORBA::_non_existent_Policy_Upcall_Command, and POA_CORBA::_get_component_Policy_Upcall_Command.

The documentation for this class was generated from the following files:

- Upcall_Command.h
- Upcall_Command.cpp