feat: implement dao factory

Author: letdtcode

dao-factory/README.md

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.iluwatar</groupId>
+        <artifactId>java-design-patterns</artifactId>
+        <version>1.26.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>dao-factory</artifactId>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

dao-factory/pom.xml

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:22
+ * Filename  : Customer
+ */public class Customer {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/Customer.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:16
+ * Filename  : CustomerDAO
+ */public interface CustomerDAO {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/CustomerDAO.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:16
+ * Filename  : DAOFactory
+ */public interface DAOFactory {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/DAOFactory.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 17/04/2025
+ * Time      : 00:21
+ * Filename  : DataSourceEnum
+ */
+public class DataSourceEnum {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/DataSourceEnum.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:25
+ * Filename  : FlatFileCustomerDAO
+ */
+public class FlatFileCustomerDAO {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/FlatFileCustomerDAO.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:19
+ * Filename  : FlatFileDataSourceFactory
+ */public class FlatFileDataSourceFactory {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/FlatFileDataSourceFactory.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:26
+ * Filename  : H2CustomerDAO
+ */public class H2CustomerDAO {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/H2CustomerDAO.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:18
+ * Filename  : H2DataSourceFactory
+ */public class H2DataSourceFactory {
+}

dao-factory/src/main/java/com/iluwatar/daofactory/H2DataSourceFactory.java

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+package com.iluwatar.daofactory;
+
+import org.dizitart.no2.collection.Document;
+import java.util.Optional;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:26
+ * Filename  : NitriteCustomerDAO
+ */
+public class MongoCustomerDAO implements CustomerDAO {
+  @Override
+  public void save(Customer customer) {
+
+  }
+
+  @Override
+  public void update(Customer customer) {
+
+  }
+
+  @Override
+  public void delete(Long id) {
+
+  }
+
+  @Override
+  public Optional<Customer> findById(Long id) {
+    return Optional.empty();
+  }
+
+//  @Override
+//  public List<Customer> findAll() {
+//    return List.of();
+//  }
+//
+//  @Override
+//  public Optional<Customer> findById(Long id) {
+//    return Optional.empty();
+//  }
+}

dao-factory/src/main/java/com/iluwatar/daofactory/MongoCustomerDAO.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 16/04/2025
+ * Time      : 23:19
+ * Filename  : NitriteDataSourceFactory
+ */
+public class MongoDataSourceFactory extends DAOFactory {
+  @Override
+  public CustomerDAO getCustomerDAO() {
+    return new MongoCustomerDAO();
+  }
+}

dao-factory/src/main/java/com/iluwatar/daofactory/MongoDataSourceFactory.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 21/04/2025
+ * Time      : 01:02
+ * Filename  : AppTest
+ */public class AppTest {
+}

dao-factory/src/test/java/com/iluwatar/daofactory/AppTest.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 21/04/2025
+ * Time      : 01:03
+ * Filename  : CustomerTest
+ */
+public class CustomerTest {
+}

dao-factory/src/test/java/com/iluwatar/daofactory/CustomerTest.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 21/04/2025
+ * Time      : 01:01
+ * Filename  : DAOFactoryTest
+ */
+public class DAOFactoryTest {
+}

dao-factory/src/test/java/com/iluwatar/daofactory/DAOFactoryTest.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 21/04/2025
+ * Time      : 01:05
+ * Filename  : FlatFileCustomerDAOTest
+ */public class FlatFileCustomerDAOTest {
+}

dao-factory/src/test/java/com/iluwatar/daofactory/FlatFileCustomerDAOTest.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 21/04/2025
+ * Time      : 01:05
+ * Filename  : H2CustomerDAOTest
+ */
+public class H2CustomerDAOTest {
+}

dao-factory/src/test/java/com/iluwatar/daofactory/H2CustomerDAOTest.java

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+package com.iluwatar.daofactory;
+
+/**
+ * Created by: IntelliJ IDEA
+ * User      : dthanh
+ * Date      : 21/04/2025
+ * Time      : 01:05
+ * Filename  : MongoCustomerDAOTest
+ */
+public class MongoCustomerDAOTest {
+}