简单建造者模式

src/main/java/top/fjy8018/designpattern/pattern/creational/builder/AbstractCourseBuilder.java

@@ -0,0 +1,22 @@
+package top.fjy8018.designpattern.pattern.creational.builder;
+
+/**
+ * 建造者抽象类
+ *
+ * @author F嘉阳
+ * @date 2018-09-25 17:15
+ */
+public abstract class AbstractCourseBuilder {
+    public abstract void courseName(String courseName);
+
+    public abstract void coursePPT(String coursePPT);
+
+    public abstract void courseVideo(String courseVideo);
+
+    /**
+     * question & answer
+     */
+    public abstract void courseQA(String courseQA);
+
+    public abstract BCourse build();
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/builder/BCourse.java

@@ -0,0 +1,59 @@
+package top.fjy8018.designpattern.pattern.creational.builder;
+
+/**
+ * 实体类
+ *
+ * @author F嘉阳
+ * @date 2018-09-25 17:13
+ */
+public class BCourse {
+    private String courseName;
+    private String coursePPT;
+    private String courseVideo;
+    /**
+     * question & answer
+     */
+    private String courseQA;
+
+    public String getCourseName() {
+        return courseName;
+    }
+
+    public void setCourseName(String courseName) {
+        this.courseName = courseName;
+    }
+
+    public String getCoursePPT() {
+        return coursePPT;
+    }
+
+    public void setCoursePPT(String coursePPT) {
+        this.coursePPT = coursePPT;
+    }
+
+    public String getCourseVideo() {
+        return courseVideo;
+    }
+
+    public void setCourseVideo(String courseVideo) {
+        this.courseVideo = courseVideo;
+    }
+
+    public String getCourseQA() {
+        return courseQA;
+    }
+
+    public void setCourseQA(String courseQA) {
+        this.courseQA = courseQA;
+    }
+
+    @Override
+    public String toString() {
+        return "BCourse{" +
+                "courseName='" + courseName + '\'' +
+                ", coursePPT='" + coursePPT + '\'' +
+                ", courseVideo='" + courseVideo + '\'' +
+                ", courseQA='" + courseQA + '\'' +
+                '}';
+    }
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/builder/Coach.java

@@ -0,0 +1,24 @@
+package top.fjy8018.designpattern.pattern.creational.builder;
+
+/**
+ * 教练->建造课程
+ *
+ * @author F嘉阳
+ * @date 2018-09-25 18:54
+ */
+public class Coach {
+
+    private AbstractCourseBuilder builder;
+
+    public Coach(AbstractCourseBuilder builder) {
+        this.builder = builder;
+    }
+
+    public BCourse createCourse(String courseName, String coursePPT, String courseVideo, String courseQA) {
+        builder.courseName(courseName);
+        builder.coursePPT(coursePPT);
+        builder.courseVideo(courseVideo);
+        builder.courseQA(courseQA);
+        return builder.build();
+    }
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/builder/CourseBuilder.java

@@ -0,0 +1,37 @@
+package top.fjy8018.designpattern.pattern.creational.builder;
+
+/**
+ * 建造者实现类
+ *
+ * @author F嘉阳
+ * @date 2018-09-25 17:17
+ */
+public class CourseBuilder extends AbstractCourseBuilder {
+
+    private BCourse course = new BCourse();
+
+    @Override
+    public void courseName(String courseName) {
+        course.setCourseName(courseName);
+    }
+
+    @Override
+    public void coursePPT(String coursePPT) {
+        course.setCoursePPT(coursePPT);
+    }
+
+    @Override
+    public void courseVideo(String courseVideo) {
+        course.setCourseVideo(courseVideo);
+    }
+
+    @Override
+    public void courseQA(String courseQA) {
+        course.setCourseQA(courseQA);
+    }
+
+    @Override
+    public BCourse build() {
+        return course;
+    }
+}

src/test/java/top/fjy8018/designpattern/pattern/creational/builder/CourseBuilderTest.java

@@ -0,0 +1,17 @@
+package top.fjy8018.designpattern.pattern.creational.builder;
+
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@Slf4j
+class CourseBuilderTest {
+
+    @Test
+    void coachBuild() {
+        Coach coach = new Coach(new CourseBuilder());
+        BCourse course = coach.createCourse("Java课程", "课程PPT", "课程视频", "课程问答");
+        log.info(course.toString());
+    }
+}