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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_GRID_SESSION_ICE
#define ICE_GRID_SESSION_ICE
#include <Glacier2/Session.ice>
#include <IceGrid/Exception.ice>
module IceGrid
{
/**
*
* A session object is used by IceGrid clients to allocate and
* release objects. Client sessions are either created with the
* [Registry] object or the registry client [Glacier2::SessionManager]
* object.
*
* @see Registry
* @see Glacier2::SessionManager
*
**/
interface Session extends Glacier2::Session
{
/**
*
* Keep the session alive. Clients should call this operation
* regularly to prevent the server from reaping the session.
*
* @see Registry::getSessionTimeout
*
**/
idempotent void keepAlive();
/**
*
* Allocate an object. Depending on the allocation timeout, this
* operation might hang until the object is available or until the
* timeout is reached.
*
* @param id The identity of the object to allocate.
*
* @return The proxy of the allocated object.
*
* @throws ObjectNotRegisteredException Raised if the object with
* the given identity is not registered with the registry.
*
* @throws AllocationException Raised if the object can't be
* allocated.
*
* @see setAllocationTimeout
* @see releaseObject
*
**/
["ami", "amd"] Object* allocateObjectById(Ice::Identity id)
throws ObjectNotRegisteredException, AllocationException;
/**
*
* Allocate an object with the given type. Depending on the
* allocation timeout, this operation might hang until an object
* becomes available or until the timeout is reached.
*
* @param type The type of the object.
*
* @return The proxy of the allocated object.
*
* @throws Raised if no objects with the given type can be
* allocated.
*
* @see setAllocationTimeout
* @see releaseObject
*
**/
["ami", "amd"] Object* allocateObjectByType(string type)
throws AllocationException;
/**
*
* Release an object.
*
* @param id The identity of the object to release.
*
* @throws ObjectNotRegisteredException Raised if the object with
* the given identity is not registered with the registry.
*
* @throws AllocationException Raised if the given object can't be
* released. This might happen if the object isn't allocatable or
* isn't allocated by the session.
*
* @see allocateObjectById
* @see allocateObjectByType
*
**/
void releaseObject(Ice::Identity id)
throws ObjectNotRegisteredException, AllocationException;
/**
*
* Set the allocation timeout. If no objects are available for an
* allocation request, the request will hang for the duration of
* this timeout.
*
* @param timeout The timeout in milliseconds.
*
* @see allocateObjectById
* @see allocateObjectByType
*
**/
idempotent void setAllocationTimeout(int timeout);
};
};
#endif
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