ConfigurationBackend.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef CONFIG_BACKEND_H
#define CONFIG_BACKEND_H

#include "pedigree/kernel/config/ConfigurationManager.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/String.h"

class ConfigurationBackend
{
  public:
    ConfigurationBackend(const String &configStore);
    virtual ~ConfigurationBackend();

    virtual size_t createTable(const String &table) = 0;
    virtual void insert(
        const String &table, const String &key, const ConfigValue &value) = 0;
    virtual ConfigValue &select(const String &table, const String &key) = 0;

    virtual void watch(
        const String &table, const String &key,
        ConfigurationWatcher watcher) = 0;
    virtual void unwatch(
        const String &table, const String &key,
        ConfigurationWatcher watcher) = 0;

    virtual const String &getConfigStore();

    virtual const String &getTypeName() = 0;

  protected:
    String m_ConfigStore;
};

#endif