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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_QUERY_ICE
#define ICE_GRID_QUERY_ICE
#include <Ice/Identity.ice>
#include <Ice/BuiltinSequences.ice>
#include <IceGrid/Exception.ice>
/**
*
* IceGrid is a server activation and deployment tool. IceGrid,
* simplifies the complex task of deploying applications in a
* heterogeneous computer network.
*
**/
module IceGrid
{
/**
*
* Determines which load sampling interval to use.
*
**/
enum LoadSample
{
LoadSample1,
LoadSample5,
LoadSample15
};
/**
*
* The IceGrid query interface. This interface is accessible to
* Ice clients who wish to lookup well-known objects.
*
**/
["ami"] interface Query
{
/**
*
* Find a well-known object by identity.
*
* @param id The identity.
*
* @return The proxy or null if no such object has been found.
*
**/
["nonmutating", "cpp:const"] idempotent Object* findObjectById(Ice::Identity id);
/**
*
* Find a well-known object by type. If there are several objects
* registered for the given type, the object will be randomly
* selected.
*
* @param type The object type.
*
* @return The proxy or null if no such object has been found.
*
**/
["nonmutating", "cpp:const"] idempotent Object* findObjectByType(string type);
/**
*
* Find a well-known object by type on the least loaded node. If
* the registry can't figure out the node that hosts the object
* (e.g., if the object was registered with a direct proxy), the
* registry assumes the object is hosted on a node that has a load
* average of 1.0.
*
* @param type The object type.
*
* @return The proxy or null if no such object has been found.
*
**/
["nonmutating", "cpp:const"] idempotent Object* findObjectByTypeOnLeastLoadedNode(string type, LoadSample sample);
/**
*
* Find all the well-known objects with the given type.
*
* @param type The object type.
*
* @return The proxies or an empty sequence if no such objects
* have been found.
*
**/
["nonmutating", "cpp:const"] idempotent Ice::ObjectProxySeq findAllObjectsByType(string type);
/**
*
* Find all the object replicas associated with the given
* proxy. If the given proxy is not an indirect proxy from a
* replica group, an empty sequence is returned.
*
* @param proxy The object proxy.
*
* @return The proxies of each object replica or an empty sequence
* if the given proxy is not from a replica group.
*
**/
["cpp:const"] idempotent Ice::ObjectProxySeq findAllReplicas(Object* proxy);
};
};
#endif
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