From 914b38fd18883aa07d1a916f08a159f4c9178e76 Mon Sep 17 00:00:00 2001
From: haerong22 <haerong22@naver.com>
Date: Wed, 6 Apr 2022 00:32:51 +0900
Subject: [PATCH] refactoring : method chain - hide delegate

---
 .../_37_hide_delegate/Department.java         | 21 ++++++++++++++
 .../_37_hide_delegate/Person.java             | 28 +++++++++++++++++++
 .../_37_hide_delegate/_before/Department.java | 21 ++++++++++++++
 .../_37_hide_delegate/_before/Person.java     | 24 ++++++++++++++++
 .../_37_hide_delegate/PersonTest.java         | 19 +++++++++++++
 5 files changed, 113 insertions(+)
 create mode 100644 refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Department.java
 create mode 100644 refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Person.java
 create mode 100644 refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Department.java
 create mode 100644 refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Person.java
 create mode 100644 refactoring/src/test/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/PersonTest.java

diff --git a/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Department.java b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Department.java
new file mode 100644
index 00000000..d5ebfa77
--- /dev/null
+++ b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Department.java
@@ -0,0 +1,21 @@
+package com.example.refactoring._17_method_chains._37_hide_delegate;
+
+public class Department {
+
+    private String chargeCode;
+
+    private Person manager;
+
+    public Department(String chargeCode, Person manager) {
+        this.chargeCode = chargeCode;
+        this.manager = manager;
+    }
+
+    public String getChargeCode() {
+        return chargeCode;
+    }
+
+    public Person getManager() {
+        return manager;
+    }
+}
diff --git a/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Person.java b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Person.java
new file mode 100644
index 00000000..ef8d5e5b
--- /dev/null
+++ b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/Person.java
@@ -0,0 +1,28 @@
+package com.example.refactoring._17_method_chains._37_hide_delegate;
+
+public class Person {
+
+    private String name;
+
+    private Department department;
+
+    public Person(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Department getDepartment() {
+        return department;
+    }
+
+    public void setDepartment(Department department) {
+        this.department = department;
+    }
+
+    Person getManager() {
+        return getDepartment().getManager();
+    }
+}
diff --git a/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Department.java b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Department.java
new file mode 100644
index 00000000..789c9c32
--- /dev/null
+++ b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Department.java
@@ -0,0 +1,21 @@
+package com.example.refactoring._17_method_chains._37_hide_delegate._before;
+
+public class Department {
+
+    private String chargeCode;
+
+    private Person manager;
+
+    public Department(String chargeCode, Person manager) {
+        this.chargeCode = chargeCode;
+        this.manager = manager;
+    }
+
+    public String getChargeCode() {
+        return chargeCode;
+    }
+
+    public Person getManager() {
+        return manager;
+    }
+}
diff --git a/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Person.java b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Person.java
new file mode 100644
index 00000000..de3c257f
--- /dev/null
+++ b/refactoring/src/main/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/_before/Person.java
@@ -0,0 +1,24 @@
+package com.example.refactoring._17_method_chains._37_hide_delegate._before;
+
+public class Person {
+
+    private String name;
+
+    private Department department;
+
+    public Person(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Department getDepartment() {
+        return department;
+    }
+
+    public void setDepartment(Department department) {
+        this.department = department;
+    }
+}
diff --git a/refactoring/src/test/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/PersonTest.java b/refactoring/src/test/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/PersonTest.java
new file mode 100644
index 00000000..4a670158
--- /dev/null
+++ b/refactoring/src/test/java/com/example/refactoring/_17_method_chains/_37_hide_delegate/PersonTest.java
@@ -0,0 +1,19 @@
+package com.example.refactoring._17_method_chains._37_hide_delegate;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class PersonTest {
+
+    @Test
+    void manager() {
+        Person kim = new Person("kim");
+        Person nick = new Person("nick");
+        kim.setDepartment(new Department("m365deploy", nick));
+
+        Person manager = kim.getManager();
+        assertEquals(nick, manager);
+    }
+
+}
\ No newline at end of file