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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/config/configgen/configinstance.h>
namespace config {
class IGenerationCallback
{
public:
virtual void notifyGenerationChange(int64_t generation) = 0;
virtual ~IGenerationCallback() {}
};
class ICallback
{
public:
virtual void configure(std::unique_ptr<const ConfigInstance> config) = 0;
virtual ~ICallback() { }
};
/**
* Interface for callback methods used by ConfigFetcher, ConfigPoller and
* LegacySubscriber.
*/
template <typename ConfigType>
class IFetcherCallback : public ICallback
{
protected:
void configure(std::unique_ptr<const ConfigInstance> config) override {
configure(std::unique_ptr<ConfigType>(static_cast<const ConfigType *>(config.release())));
}
virtual void configure(std::unique_ptr<ConfigType> config) = 0;
};
} // namespace config
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