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Araf Karsh Hamid
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Added Java 23 SOLID Examples
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‎images/Java-Logo.webp‎

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‎images/Java-SOLID-Bank-Ex.jpg‎

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‎images/Java-SOLID-Bank-Refactoring.jpg‎

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‎images/Java-SOLID-ISP-1.jpg‎

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‎images/Java-SOLID-LSP-1.jpg‎

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‎images/Java-SOLID-LSP-2.jpg‎

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‎images/Java-SOLID-OCP-1.jpg‎

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‎images/Java-SOLID.jpg‎

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‎src/designPatterns/core/BankAccountRepositoryInterface.java‎

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/**
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* (C) Copyright 2024 Araf Karsh Hamid
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package designPatterns.core;
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import java.util.List;
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/**
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* SOLID Examples
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*
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* Dependency Inversion Principle (DIP):
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* High-level modules should not depend on low-level modules. Both should depend on
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* abstractions (e.g., interfaces), not on concretions (e.g., classes).
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*
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* Handle all Bank Account related Activities
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*
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* The refactored Code has 1 Responsibility
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* 1. Deposit and Withdrawal
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*
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* Finally, DIP ensures that both high-level and low-level modules depend on abstractions.
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* - Notification implementation is completely abstracted away.
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* - Notification is loaded based on the Conditions defined in the Property File.
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* - Check the BankNotificationConfiguration class for conditional loading.
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*
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* @author: Araf Karsh Hamid
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* @version:
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* @date:
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*/
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public interface BankAccountRepositoryInterface {
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/**
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* Save Account Details
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* @param notification
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*/
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public void saveBankDetails(Object accountDetails);
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/**
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* Get the Statement of Records
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*
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* @param accountNumber
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* @param fromTime
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* @param toTime
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* @return
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*/
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public List getStatements(String accountNumber, Object fromTime, Object toTime);
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}

‎src/designPatterns/core/BankAccountRepositoryService.java‎

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/**
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* (C) Copyright 2024 Araf Karsh Hamid
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package designPatterns.core;
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import java.util.List;
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/**
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* SOLID Examples
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*
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* Single Responsibility Principle (SRP)
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* A class should have only one reason to change, meaning it should have only one j
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* ob or responsibility.
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*
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* The refactored Code has 1 Responsibility
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* 1. Save Account Details
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* 2. Get Account Statements
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*
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* With Single Responsibility Pattern the Handling of Save Account Details
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* and sending Notification must be done in separate classes.
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*
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* @author: Araf Karsh Hamid
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* @version:
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* @date:
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*/
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public class BankAccountRepositoryService implements BankAccountRepositoryInterface {
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// This is pseudo code to explain the Single Responsibility Principle
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/**
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* Save Account Details
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*
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* @param accountDetails
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*/
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@Override
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public void saveBankDetails(Object accountDetails) {
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// Code to Save
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}
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/**
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* Get the Statement of Records
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*
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* @param accountNumber
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* @param fromTime
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* @param toTime
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* @return
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*/
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@Override
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public List getStatements(String accountNumber, Object fromTime, Object toTime) {
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// pseudo code to return data
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return List.of();
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}
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}

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