Created
June 12, 2011 12:01
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Strategy (lambda)
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| class Report | |
| attr_accessor :title, :text, :formatter | |
| def initialize(&formatter) | |
| @title = "No Title" | |
| @text = "Not Found" | |
| @formatter = formatter | |
| end | |
| def output_report | |
| @formatter.call(self) | |
| end | |
| end | |
| HTML_FORMATTER = lambda do |context| | |
| puts("<html>") | |
| puts("<body>") | |
| puts("<h1>#{context.title}</h1>") | |
| puts("<p>#{context.text}}</h1>") | |
| puts("</body>") | |
| puts("</html>") | |
| end | |
| report = Report.new(&HTML_FORMATTER) | |
| report.title = "Hello" | |
| report.text = "Hello, Strategy." | |
| puts report.output_report | |
| puts Report.new { |context| puts "#{context.title} / #{context.text}" }.output_report |
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