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April 11, 2016 18:13
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Single Responsibility Principal - Good sample code
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package sample.design.single.responsibility.good; | |
/** | |
* | |
* Distibution under GNU GENERAL PUBLIC LICENSE Version 2, June 1991 | |
* | |
* @author dmalalan | |
* @created Apr 11, 2016 11:20:19 AM | |
* | |
* @blog https://malalanayake.wordpress.com/ | |
*/ | |
public class BookNew implements ReadingMaterial { | |
private static final String BOOK = "Book"; | |
private int bookId; | |
private String name; | |
public int getId() { | |
return bookId; | |
} | |
public void setBookId(int bookId) { | |
this.bookId = bookId; | |
} | |
public String getName() { | |
return name; | |
} | |
public void setName(String name) { | |
this.name = name; | |
} | |
public String getType() { | |
return BOOK; | |
} | |
} |
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package sample.design.single.responsibility.good; | |
/** | |
* | |
* Distibution under GNU GENERAL PUBLIC LICENSE Version 2, June 1991 | |
* | |
* @author dmalalan | |
* @created Apr 11, 2016 12:25:33 PM | |
* | |
* @blog https://malalanayake.wordpress.com/ | |
*/ | |
public class Magazine implements ReadingMaterial { | |
private static final String MAGAZINE = "Magazine"; | |
private int magazineId; | |
public void setMagazineId(int magazineId) { | |
this.magazineId = magazineId; | |
} | |
public int getId() { | |
return magazineId; | |
} | |
public String getType() { | |
return MAGAZINE; | |
} | |
} |
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package sample.design.single.responsibility.good; | |
/** | |
* | |
* Distibution under GNU GENERAL PUBLIC LICENSE Version 2, June 1991 | |
* | |
* @author dmalalan | |
* @created Apr 11, 2016 12:16:01 PM | |
* | |
* @blog https://malalanayake.wordpress.com/ | |
*/ | |
public interface ReadingMaterial { | |
public int getId(); | |
public String getType(); | |
} |
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package sample.design.single.responsibility.good; | |
/** | |
* | |
* Distibution under GNU GENERAL PUBLIC LICENSE Version 2, June 1991 | |
* | |
* @author dmalalan | |
* @created Apr 11, 2016 11:35:44 AM | |
* | |
* @blog https://malalanayake.wordpress.com/ | |
*/ | |
public class ReadingMaterialDAO { | |
/** | |
* 1. Get DB connection and 2. Create transaction 3. Save the RM 4. Commit | |
* transaction | |
*/ | |
public void saveRM(ReadingMaterial readingMaterial) { | |
System.out.println("[SAVE:RM " + readingMaterial.getId() + "]"); | |
} | |
/** | |
* 1. Get DB connection and 2. Create transaction 3. Update the RM 4. | |
* Commit transaction | |
*/ | |
public void updateRM(ReadingMaterial readingMaterial) { | |
System.out.println("[UPDATE:RM " + readingMaterial.getId() + "]"); | |
} | |
/** | |
* 1. Get DB connection and 2. read the RM | |
* | |
*/ | |
public void readRM(ReadingMaterial readingMaterial) { | |
System.out.println("[READ:RM " + readingMaterial.getId() + "]"); | |
} | |
/** | |
* 1. Get DB connection and 2. Create transaction 3. Delete the RM 4. | |
* Commit transaction | |
*/ | |
public void deleteRM(ReadingMaterial readingMaterial) { | |
System.out.println("[DELETE:RM " + readingMaterial.getId() + "]"); | |
} | |
} |
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