Initial Commit

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml

@@ -0,0 +1,24 @@
+<?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>
+    
+    <groupId>com.baeldung.servicemodule</groupId>
+    <artifactId>servicemodule</artifactId>
+    <packaging>jar</packaging>
+    
+    <parent>
+        <groupId>com.baeldung.decoupling-pattern1</groupId>
+        <artifactId>decoupling-pattern1</artifactId>
+        <version>1.0</version>
+    </parent>
+    
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+   
+</project>

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextService.java

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+package com.baeldung.servicemodule.external;
+
+public interface TextService {
+    
+    String processText(String text);
+    
+}

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextServiceFactory.java

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+package com.baeldung.servicemodule.external;
+
+import com.baeldung.servicemodule.internal.LowercaseTextService;
+import com.baeldung.servicemodule.internal.UppercaseTextService;
+
+public class TextServiceFactory {
+    
+    private TextServiceFactory() {}
+    
+    public static TextService getTextService(String name) {
+        return name.equalsIgnoreCase("lowercase") ? new LowercaseTextService(): new UppercaseTextService();
+    }
+    
+}

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/LowercaseTextService.java

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+package com.baeldung.servicemodule.internal;
+
+import com.baeldung.servicemodule.external.TextService;
+
+public class LowercaseTextService implements TextService {
+
+    @Override
+    public String processText(String text) {
+        return text.toLowerCase();
+    }
+    
+}

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/UppercaseTextService.java

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+package com.baeldung.servicemodule.internal;
+
+import com.baeldung.servicemodule.external.TextService;
+
+public class UppercaseTextService implements TextService {
+    
+    @Override
+    public String processText(String text) {
+        return text.toUpperCase();
+    }
+    
+}

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/module-info.java

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+module com.baeldung.servicemodule {
+    exports com.baeldung.servicemodule.external;
+}