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// **********************************************************************
//
// Copyright (c) 2003
// ZeroC, Inc.
// Billerica, MA, USA
//
// All Rights Reserved.
//
// Ice is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation.
//
// **********************************************************************
#include <Freeze/StrategyI.h>
using namespace std;
using namespace Freeze;
using namespace Ice;
LocalObjectPtr
Freeze::EvictionStrategyI::activatedObject(const Identity& ident,
const ObjectPtr& servant)
{
CookiePtr cookie = new Cookie;
cookie->mutated = false;
return cookie;
}
void
Freeze::EvictionStrategyI::destroyedObject(const Identity& ident, const LocalObjectPtr& cookie)
{
// Nothing to do
}
void
Freeze::EvictionStrategyI::evictedObject(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
const LocalObjectPtr& cookie)
{
//
// Only store the object's persistent state if it has been mutated.
//
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
if(c->mutated)
{
store->save(ident, servant);
c->mutated = false;
}
}
void
Freeze::EvictionStrategyI::savedObject(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
const LocalObjectPtr& cookie,
Ice::Int usageCount)
{
assert(usageCount > 0);
if(usageCount == 1)
{
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
c->mutated = false;
}
}
void
Freeze::EvictionStrategyI::preOperation(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
bool mutating,
const LocalObjectPtr& cookie)
{
if(mutating)
{
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
c->mutated = true;
}
}
void
Freeze::EvictionStrategyI::postOperation(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
bool mutating,
const LocalObjectPtr& cookie)
{
// Nothing to do
}
void
Freeze::EvictionStrategyI::destroy()
{
// Nothing to do
}
LocalObjectPtr
Freeze::IdleStrategyI::activatedObject(const Identity& ident,
const ObjectPtr& servant)
{
CookiePtr cookie = new Cookie;
cookie->mutated = false;
cookie->mutatingCount = 0;
return cookie;
}
void
Freeze::IdleStrategyI::destroyedObject(const Identity& ident, const LocalObjectPtr& cookie)
{
// Nothing to do
}
void
Freeze::IdleStrategyI::evictedObject(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
const LocalObjectPtr& cookie)
{
//
// The object must reach the idle state in order for it to be
// evicted, therefore the object should have already been saved
// by invokedObject.
//
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
assert(!c->mutated);
}
void
Freeze::IdleStrategyI::savedObject(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
const LocalObjectPtr& cookie,
Ice::Int usageCount)
{
assert(usageCount > 0);
if(usageCount == 1)
{
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
c->mutated = false;
}
}
void
Freeze::IdleStrategyI::preOperation(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
bool mutating,
const LocalObjectPtr& cookie)
{
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
if(mutating)
{
++c->mutatingCount;
c->mutated = true;
}
}
void
Freeze::IdleStrategyI::postOperation(const ObjectStorePtr& store,
const Identity& ident,
const ObjectPtr& servant,
bool mutating,
const LocalObjectPtr& cookie)
{
CookiePtr c = CookiePtr::dynamicCast(cookie);
assert(c);
if(mutating)
{
assert(c->mutatingCount >= 1);
--c->mutatingCount;
}
if(c->mutatingCount == 0 && c->mutated)
{
//
// Only store the object's persistent state if the object is idle
// and it has been mutated.
//
store->save(ident, servant);
c->mutated = false;
}
}
void
Freeze::IdleStrategyI::destroy()
{
// Nothing to do
}
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