Review probable skeletal implemeantors about migrate-skeletal-implementation-to-interface-refactoring

[khatchad]

Hi Professor https://app.asana.com/0/16544941486330/16544941486330 I don't have the access to php panel or the MySQL database. Do you have the ER diagram for the database, would be helpful to implement in the database

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#commenter Md Arefin
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[khatchad]

http://130.211.240.130/phpmyadmin

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#commenter Raffi Khatchadourian
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[khatchad]

I'm working on getting the designer view to come up for your user account.

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#commenter Raffi Khatchadourian
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[khatchad]

Sounds great

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

I can't figure it out. Please use the root account for now but be careful not to change the schema. Here are the credentials:

username: root
password: Its7eK7dap8D

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#commenter Raffi Khatchadourian
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[khatchad]

Ok, thanks

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

Now that the individual accounts are working correctly, I will change the root account password.

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#commenter Raffi Khatchadourian
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[khatchad]

Over to https://app.asana.com/0/48844890659415/48844890659415. https://app.asana.com/0/48844890659415/48844890659415, please let me know if you have questions.

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#commenter Raffi Khatchadourian
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[khatchad]

https://app.asana.com/0/48844890659415/48844890659415, it may be best to first create a query that finds abstract classes that implement a single interface. These will be our candidates. I'll make this a sub task.

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#commenter Raffi Khatchadourian
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[khatchad]

So I could take look at the interface class

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#commenter Md Arefin
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[khatchad]

Ah interesting. Does it pop up on google?

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#commenter Raffi Khatchadourian
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[khatchad]

like oracle doc

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#commenter Md Arefin
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[khatchad]

also, I need a better understanding on the Skeletal Implementation. Let's discuss tomorrow.

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#commenter Md Arefin
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[khatchad]

https://app.asana.com/0/36107232964072/36107232964072 Do you understand the pattern now?

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#commenter Raffi Khatchadourian
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[khatchad]

Kind of, not deep enough

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

Do you have any questions?

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#commenter Raffi Khatchadourian
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[khatchad]

so we are checking the skeletal implementations, which is kind of if a class get extended from abstract class and if the abstract class implements interface. How this will be beneficial, what else is matter in this skeletal implementations. Do you have any other resource describing more about this pattern.

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#commenter Md Arefin
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[khatchad]

Hi https://app.asana.com/0/36107232964072/36107232964072, just to follow up from our meeting yesterday,  the skeletal implementor (or implementation, though, I think I would reserve that term for the individual methods that implement the interface methods) is the abstract class. Classes wishing to implement the interface would extend the abstract class (skeletal implementor) so that it would be easier to implement the interface. A great example of this is java.util.ArrayList. Notice, it is a concrete (i.e., non-abstract) class that implements the java.util.List interface but also extends the java.util.AbstractList abstract class. In this example, java.util.AbstractList is the skeletal implementor. Perhaps https://app.asana.com/0/39040660091509/39040660091509 can chime in if I am mistaken or to add more clarity.

https://app.asana.com/0/36107232964072/36107232964072, is this any clearer?

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#commenter Raffi Khatchadourian
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[khatchad]

Ah! Much clear. For now we are just looking upto abstract class and what interface that class extended?

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

Right, because I feel that the interface they are extending is a hint as to whether it is a skeletal implementor. For example, implementing the Runnable interface as a skeletal implementor doesn't make a lot of sense because that interface is so general.

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#commenter Raffi Khatchadourian
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[khatchad]

Attaching new list.

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#commenter Raffi Khatchadourian
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[khatchad]

https://app.asana.com/0/36107232964072/36107232964072, once https://app.asana.com/0/16544941486330/55599292395220 is complete, please use that column.

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#commenter Raffi Khatchadourian
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[khatchad]

https://app.asana.com/0/36107232964072/36107232964072, I've attached the spreadsheet to https://app.asana.com/0/16544941486330/55599292395220. Please use that sheet and let me know if you have any questions. Also, since I am late with this spreadsheet, we can change the due date.

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#commenter Raffi Khatchadourian
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[khatchad]

Hi https://app.asana.com/0/36107232964072/36107232964072, any status updates here?

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#commenter Raffi Khatchadourian
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[khatchad]

OK, I've adding the data in https://app.asana.com/0/48844890659415/48844890659415's repo to do the database.

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#commenter Raffi Khatchadourian
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[khatchad]

I also fixed a few compile-time errors in the subject repo.

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#commenter Raffi Khatchadourian
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[khatchad]

https://app.asana.com/0/36107232964072/36107232964072, I've created a table called confirmed_skeletal_implements in the database. Could you add the FQN of the confirmed classes following the skeletal implementation pattern here? I've also added a column in case a comment is to be made. As for whether we have the source, that's captured in the types table by the compilation unit being NULL. Please let me know if you have any questions.

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#commenter Raffi Khatchadourian
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[khatchad]

Hi https://app.asana.com/0/36107232964072/36107232964072, any status updates here?

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#commenter Raffi Khatchadourian
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[khatchad]

https://app.asana.com/0/36107232964072/36107232964072 Is this okay to have this by tomorrow? This is a first priority. Thanks!

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#commenter Raffi Khatchadourian
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[khatchad]

Ok, got it, when you mentioned following Skeletal implementations, what are the object you want me to look for.

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#commenter Md Arefin
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[khatchad]

It's the classes that follow the pattern from Item 18, Chapter 4.

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#commenter Raffi Khatchadourian
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[khatchad]

Got it

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#commenter Md Arefin
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[khatchad]

looks like the class kind of follow the pattern

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

All of them?

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#commenter Raffi Khatchadourian
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[khatchad]

abstract class FractalCalculator implements Runnable 

class AbstractFTPAdapter implements Interface ApplicationAdapter

abstract class KeyList implements IList

abstract class SpellDictionaryASpell implements SpellDictionary

abstract class AbstractWordFinder implements WordFinder

abstract class AbstractWordTokenizer implements WordTokenizer

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#commenter Md Arefin
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[khatchad]

There been used in the other class, which follow the skeletal implementation, as far my understanding.

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

I would highly doubt that FractalCalculator follows this pattern because it is implementing the Runnable interface. Remember, the pattern is to make implementing the interface easier. Runnable only has one method.

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#commenter Raffi Khatchadourian
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[khatchad]

Do you agree?

[--- Commented from Asana.com
#commenter Raffi Khatchadourian
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[khatchad]

agee

[--- Commented from Asana.com
#commenter Md Arefin
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[khatchad]

Cool. Please take a closer look at the abstract class to see if it is trying to provide a partial implementation of the interface.

An awesome example of the pattern is java.util.AbstractList.

[--- Commented from Asana.com
#commenter Raffi Khatchadourian
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[khatchad]

I need to download the source code of the library,

[--- Commented from Asana.com
#commenter Md Arefin
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