design_pattern:template_method_pattern [Ledyx WIKI]

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--- design_pattern:template_method_pattern [2017/10/27 09:47] – 만듦 ledyx
+++ design_pattern:template_method_pattern [2021/02/07 03:30] (current) – [Template Method Pattern] ledyx
@@ Line 3: / Line 3: @@
   * 상위 클래스에서 처리의 뼈대를 세우고, 구체적인 처리를 하위 클래스에서 실행.
-{{tag>Architecture Modeling DesignPattern Behavioral}}
+{{tag>Architecture Modeling Design_Pattern Behavioral}}
+GUI 앱에서 Menu, Sidebar를 열기/닫기/크기 얻기 동작을 한다고 가정.
+= AbstractClass =
+<sxh java>
+/**
+ * Template 역할
+ */
+public abstract class AbstractLayout {
+	private int width;
+	private int height;
+	public AbstractLayout(int width, int height) {
+		this.width = width;
+		this.height = height;
+	}
+	public abstract void open();
+	public abstract void close();
+	public final int[] getMesasure() {
+		return new int[] {width, height};
+	}
+}
+</sxh>
+= ConcreteClass =
+<sxh java>
+public class MenuLayout extends AbstractLayout {
+	public MenuLayout(int width, int height) {
+		super(width, height);
+	}
+	@Override
+	public void open() {
+		System.out.println("Menu opened!");
+	}
+	@Override
+	public void close() {
+		System.out.println("Menu closed!");
+	}
+}
+</sxh>
+<sxh java>
+public class SidebarLayout extends AbstractLayout {
+	public SidebarLayout(int width, int height) {
+		super(width, height);
+	}
+	@Override
+	public void open() {
+		System.out.println("Sidebar opened!");
+	}
+	@Override
+	public void close() {
+		System.out.println("Sidebar closed!");
+	}
+}
+</sxh>
+= Client =
+<sxh java>
+public class Main {
+	public static void main(String[] args) {
+		AbstractLayout menuLayout = new MenuLayout(100, 100);
+		AbstractLayout sidebarLayout = new SidebarLayout(100, 500);
+		print(menuLayout);
+		print(sidebarLayout);
+	}
+	private static void print(AbstractLayout layout) {
+		layout.open();
+		layout.close();
+		for(int value : layout.getMesasure()) {
+			System.out.println(value);
+		}
+		System.out.println();
+	}
+}
+/*
+Menu opened!
+Menu closed!
+
+
+Sidebar opened!
+Sidebar closed!
+
+
+*/
+</sxh>