IntelliJ IDEA Help: Extract Interface Refactoring

Extract Interface Refactoring

占쏙옙 占쏙옙占쏙옙占쏙옙 Extract Interface 占쏙옙占쏙옙占썰링 占쏙옙占쏙옙占쏙옙 占쏙옙탓占쏙옙占� 占쏙옙占쏙옙占쏙옙占쏙옙 overview占쏙옙 how 占쏙옙 占쏙옙占쏙옙占썰링占쏙옙 IntelliJ IDEA占쏙옙占쏙옙 占쏙옙占쏙옙 占쏙옙 占쌍는곤옙占쏙옙 占쏙옙占쏙옙占쌌니댐옙.

占쏙옙占쏙옙

Extract Interface 占쏙옙占쏙옙占썰링占쏙옙 占쏙옙占쌀억옙 占쏙옙占쏙옙占� 占쏙옙 占심쇽옙占쏙옙 占쏙옙占쏙옙占싹댐옙. 첫 占쏙옙째(Extract Interface) 占쏙옙 클占쏙옙占쏙옙占쏙옙 占쌨소드를 占쏙옙占십뤄옙 占싹댐옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占싹듸옙占쏙옙 占쏙옙占쏙옙爛求占�.

占쏙옙 占쏙옙째 (Rename original class and use interface where possible) 占쏙옙 占쏙옙占쏙옙占쏙옙 클占쏙옙占쏙옙占쏙옙 占싱몌옙占쏙옙 占쏙옙占쏙옙占싹곤옙 占쏙옙占쌈곤옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쌌니댐옙. 占쌓뤄옙 占쏙옙占�, 占쏙옙占쏙옙占싹몌옙 IDEA占쏙옙 占쌓띰옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙歐占� 占쏙옙占쏙옙 占쏙옙占� 占쏙옙占쏙옙占쏙옙 클占쏙옙占쏙옙 占쏙옙占쏙옙占� 占쌕꿉니댐옙 (占쌓몌옙占쏙옙 占쌓곤옙占쏙옙 占쏙옙占쏙옙 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쌓것듸옙占쏙옙 占쏙옙占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙 占쏙옙占쌉니댐옙).

占쏙옙占쏙옙, 占쏙옙占쏙옙占쏙옙 클占쏙옙占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占� 占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占쏙옙 占십듸옙占� 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占싱듸옙占쏙옙 占쏙옙 占쌍쏙옙占싹댐옙. 占쏙옙 占쏙옙占�, 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 특占쏙옙占쏙옙 占쌨소듸옙占� 占십드를 占쏙옙占쏙옙占싹면서 占쏙옙占쏙옙占쏙옙 占쏙옙占쌉니댐옙. 占쏙옙 占쏙옙占쏙옙占쏙옙, 占쏙옙占실듸옙 클占쏙옙占쏙옙 占쌨소듸옙占� 占쏙옙占쏙옙占싹댐옙 占쏙옙占쏙옙占쏙옙占싱쏙옙 占쌨소듸옙占쏙옙 占쏙옙占쏙옙占쏙옙 占싯니댐옙.

Extract Interface 占심쇽옙占쏙옙 占쏙옙占쏙옙 占쏙옙占쏙옙 占쌘듸옙:

占쎌리占쏙옙 占쏙옙占쏙옙占쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占싹댐옙:

class AClass {

    public static final double CONSTANT=3.14;

    public void publicMethod() {//some code here}

    public void secretMethod() {//some code here}

占쏙옙占쏙옙占썰링 占쏙옙占쏙옙, 占쏙옙占싸울옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쌉니댐옙:

public interface AnInterface {

    double CONSTANT=3.14;

    void publicMethod();

占쌀쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쌉니댐옙:

class AClass implements AnInterface {

    public void publicMethod() {//some code here}

    public void secretMethod() {//some code here}

占쏙옙占쏙옙 Rename original class and use interface where possible 占심쇽옙占쏙옙 占쏙옙占시되몌옙 占쌘드를 占쏙옙占쏙옙占싹십시울옙:

public class FormerAClass implements AClass {

    public void publicMethod() {//some code here }

    public void secretMethod() {//some code here}

占쌓몌옙占쏙옙 占쏙옙占쏙옙占쏙옙 클占쏙옙占쏙옙占쏙옙 占싱몌옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쌈곤옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙:

public interface AClass {

    double CONSTANT=3.14;

    void publicMethod();

占쏙옙占쏙옙占� 占쏙옙 占쌕몌옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占싱뱄옙 占쏙옙占쏙옙占싹댐옙 클占쏙옙占쏙옙占싸븝옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙 占쌍쏙옙占싹댐옙. AnInterface占쏙옙 占쏙옙占쏙옙占싹댐옙 클占쏙옙占쏙옙占싸븝옙占쏙옙 extract interface占쏙옙 占쌌니댐옙. 占쎌리占쏙옙 AnotherInterface(占쏙옙占쏙옙占� 占쌨소듸옙)占쏙옙 AnInterface (占쏙옙占쏙옙占쏙옙 占쏙옙)占쏙옙 확占쏙옙풉綬� 占쏙옙占싹댐옙占쏙옙 占실댐옙 占쌓듸옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쌀쏙옙 AClass占쏙옙 占쎌리占쏙옙 占쏙옙占싹댐옙占쏙옙占쏙옙 占쏙옙占쏙옙 占쎌리占쏙옙 占쏙옙占쏙옙占쏙옙 占쌘드를 占쏙옙占� 占쏙옙 占쏙옙占쌉니댐옙.

Extracted Interface extends the existing one Source class:

class AClass implements AnotherInterface {

    public void publicMethod() { //some code here }

    public void secretMethod() { //some code here }

Extracted Interface:

public interface AnotherInterface extends AnInterface {

Source class implements both interfaces

Source class:

 class AClass implements AnInterface, AnotherInterface {

    public void publicMethod() { //some code here }

    public void secretMethod() { //some code here }

Extracted Interface:

public interface AnotherInterface {

占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙퓸占쏙옙占쏙옙占쏙옙, IDEA占쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占� 占싯삼옙占싹곤옙, 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占� 占쌓듸옙占쏙옙 占쏙옙占쏙옙占싹몌옙 占쏙옙체占쏙옙 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쌉니댐옙. 占쏙옙占쏙옙占� IDEA占쏙옙 占쏙옙 占쏙옙占쏙옙占쏙옙 占쌘듸옙占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占싹곤옙 占쏙옙 占쏙옙 占쌍거놂옙, 占쏙옙占쏙옙占� 占쌩견되곤옙, 占쌓듸옙占쏙옙 占쏙옙체占쏙옙 占쏙옙占쏙옙占싹댐옙 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占� 占쏙옙占쏙옙 占쏙옙 占쌍쏙옙占싹댐옙.

占쏙옙占쏙옙 占쌘듸옙:

class AClass implements AnInterface {

    public void publicMethod() {//some code here}

    public void secretMethod() {//some code here}

...

...

//This usage can be modified by changing the

//parameter type from 'AClass' to 'AnInterface'

 void foo (AClass aClass){

    aClass.publicMethod();

...

...

//This usage will not be suggested for

//refactoring because it is not specified in the interface

void bar (AClass aClass){

    aClass.secretMethod();

占쏙옙占쏙옙占쏙옙占싱쏙옙 占쏙옙占쏙옙

클占쏙옙占쏙옙占싸븝옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占싹깍옙 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쌌니댐옙:

1. Project 占쏙옙占썩에占쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占싹거놂옙 占쏙옙占쏙옙 占쏙옙占쏙옙占썩에占쏙옙 클占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 캐占쏙옙占쏙옙 占쏙옙占� 占쏙옙占쏙옙 占쏙옙치占싹십시울옙, 占쌓몌옙占쏙옙 Extract Interface 占쏙옙 占싯억옙 占쌨댐옙占싸븝옙占쏙옙 占실댐옙 Refactor 占쌨댐옙占싸븝옙占쏙옙 占쏙옙占쏙옙占십시울옙.

占쏙옙占쏙옙占� 占쏙옙占쏙옙 클占쏙옙占쏙옙占쏙옙 Structure, Commander, Source 占쏙옙占� 占쏙옙占쏙옙 占쌕몌옙 占쏙옙占썩에占쏙옙 占쏙옙占쏙옙 占쏙옙 占쌍쏙옙占싹댐옙.

2. 占쏙옙 占식울옙, 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占� 占쏙옙占쏙옙占썰링 占신곤옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占싹깍옙 占쏙옙占쏙옙 占쏙옙타占쏙옙 占쏙옙占쌉니댐옙:

첫 占쏙옙째占쏙옙, 占쏙옙 占심쇽옙(Extract Interface 占실댐옙 Rename original class and use interface where possible ) 占쏙옙튼 占쏙옙占쏙옙 占쏙옙 占쏙옙占쏙옙 占쏙옙占쏙옙占싹십시울옙. 占쌓몌옙占쏙옙 占쏙옙占쏙옙 Interface name 占실댐옙 Rename original class to 占쌔쏙옙트 占십드에占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙 占싱몌옙 占실댐옙 占쏙옙占쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙 占쏙옙占싸울옙 占싱몌옙占쏙옙 占쏙옙占쏙옙占싹십시울옙.

Members to Form Interface 占싻널울옙占쏙옙, 占쏙옙占쏙옙占� 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쌉되기를 占쏙옙占싹댐옙 占쌨소듸옙占� 占십드를 占쏙옙占쏙옙占싹십시울옙.

占쏙옙占쏙옙占� 클占쏙옙占쏙옙占쏙옙 占쏙옙 占쌕몌옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占싱뱄옙 占쏙옙占쏙옙占쌩쏙옙占싹댐옙. 占쏙옙 占쏙옙占�, 占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 Members to Form Interface 占쏙옙臼占쏙옙占� 占쏙옙타占쏙옙 占쏙옙占쌉니댐옙. 占쏙옙占쏙옙 占쏙옙占쏙옙占� 占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙 占싹놂옙占쏙옙 확占쏙옙占싹기를 占쏙옙占싹몌옙, 占쏙옙占쏙옙占� 占쏙옙臼占쏙옙占� 占쌓곤옙占쏙옙 占쏙옙占쏙옙占쌔야몌옙 占쌌니댐옙. 占쏙옙占쏙옙 占쌓뤄옙占쏙옙 占십다몌옙, 占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占시듸옙占쏙옙 占십곤옙 占싹십시울옙. 占쌓뤄옙占쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占싹곤옙 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쌉니댐옙.

JavaDoc 占쌓룹에占쏙옙, 占쏙옙占싸울옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙 Javadoc占쏙옙 占쌕뤄옙占쏙옙占쏙옙蔘占� 占싹댐옙 占심쇽옙 占쏙옙튼占쏙옙 占쏙옙占쏙옙占싹십시울옙.

As is	???
Copy	???
Move	???

3. OK 占쏙옙 클占쏙옙占싹십시울옙, 占쌓몌옙占쏙옙 占쏙옙占싸울옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占쌉니댐옙.

4. 占쏙옙 占쏙옙, 占쏙옙占쏙옙 占쏙옙占쏙옙占� Extract Interface 占심쇽옙 占쏙옙튼占쏙옙 占쏙옙占쏙옙占싹몌옙, 占쏙옙占쏙옙 占쏙옙占쏙옙占쎌가 占쏙옙타占쏙옙 占쏙옙占쌉니댐옙:

占쏙옙占쏙옙 占쏙옙占쏙옙占� IDEA占쏙옙 클占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占� 占싻쇽옙占싹곤옙, 占쏙옙占쏙옙占싹몌옙 占쏙옙占쏙옙占쏙옙占싱쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙占� 占쌓듸옙占쏙옙 占쏙옙체占싹깍옙 占쌕띰옙占�, Yes 占쏙옙 클占쏙옙占싹십시울옙, 占쌓뤄옙占쏙옙 占십다몌옙 No占쏙옙 클占쏙옙占싹십시울옙. 占쏙옙占쏙옙 占쏙옙占쏙옙 占싱몌옙 占쏙옙占썩를 占쏙옙占십시울옙.

Preview usages to be changed 체크 占쌘쏙옙占쏙옙 체크占싹몌옙 占쏙옙탓占쏙옙占� 占쏙옙占쏙옙占� 占쌩견되곤옙, 占쌓듸옙占쏙옙 占쏙옙체占쏙옙 占쏙옙占쏙옙占싹댐옙 占쏙옙占쏙옙占쏙옙 占쏙옙占� 占쏙옙占� 占쏙옙占쏙옙 占쏙옙占쏙옙爛求占�. 체크占쏙옙占쏙옙 占쏙옙占쏙옙 占쏙옙, IDEA占쏙옙 占쏙옙체占쏙옙 占쌘듸옙占쏙옙占쏙옙占쏙옙 占쏙옙占쏙옙占쌌니댐옙.

占쏙옙占쏙옙占쏙옙 체크 占쌘쏙옙占쏙옙 확占싸듸옙占쏙옙 占십억옙占쏙옙 占쏙옙占쏙옙, 占쏙옙占쏙옙 占쌩견듸옙 占쏙옙占쏙옙占� 占쏘떤 占싻깍옙 占쏙옙占쏙옙 占쏙옙占싹울옙占쏙옙 占쏙옙占쏙옙占싹몌옙 占쏙옙탓占쏙옙占� 占쏙옙占� 占쏙옙체占쏙옙 확占쏙옙占싹깍옙 占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙트 占쏙옙 占쏙옙 占쌉니댐옙.