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Factory Method design pattern example in Python
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Example of `factory method' design pattern
# Copyright (C) 2011 Radek Pazdera
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class Cup:
color = ""
# This is the factory method
@staticmethod
def getCup(cupColor):
if (cupColor == "red"):
return RedCup()
elif (cupColor == "blue"):
return BlueCup()
else:
return None
class RedCup(Cup):
color = "red"
class BlueCup(Cup):
color = "blue"
# A little testing
redCup = Cup.getCup("red")
print "%s(%s)" % (redCup.color, redCup.__class__.__name__)
blueCup = Cup.getCup("blue")
print "%s(%s)" % (blueCup.color, blueCup.__class__.__name__)
@ThiaguinhoLS

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commented Mar 16, 2018

Thank you.

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