kea/src/hooks/dhcp/user_chk/user_data_source.h

// Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS.  IN NO EVENT SHALL ISC 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 _USER_DATA_SOURCE_H
#define _USER_DATA_SOURCE_H

#include <user.h>

class UserDataSource {

public:
    UserDataSource();

    virtual ~UserDataSource();

    virtual void open();

    virtual UserPtr readNextUser();

    virtual void close();

    bool isOpen() const;

    void setOpenFlag(bool value);

private:
    bool open_flag_;
};

typedef boost::shared_ptr<UserDataSource> UserDataSourcePtr;

#endif