# Copyright (c) 2011-2012, Thomas Paviot (tpaviot@gmail.com)

# All rights reserved.

# This file is part of the STEPCODE project.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are met:

#

# Redistributions of source code must retain the above copyright notice,

# this list of conditions and the following disclaimer.

#

# Redistributions in binary form must reproduce the above copyright notice,

# this list of conditions and the following disclaimer in the documentation

# and/or other materials provided with the distribution.

#

# Neither the name of the <ORGANIZATION> nor the names of its contributors may

# be used to endorse or promote products derived from this software without

# specific prior written permission.

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

# ARE DISCLAIMED.

# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY

# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

class Model:

""" The container for entity instances

"""

def __init_(self):

print("Model initialized")

self._instances = []

def add_instance(self, entity_instance):

self._instances.append(entity_instance)

def remove_instance(self, entity_instance):

self._instances.remove(entity_instance)

def get_instances(self):

return self._instances

def export_to_p21file(self, filename):

raise AssertionError("Not implemented")

def export_to_p28file(self, filename):

raise AssertionError("Not implemented")