chore: initial commit - project structure with domain, application, infrastructure, bootstrap, and basic dependencies

domain/pom.xml

@@ -0,0 +1,20 @@
+<project>
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.pablotj</groupId>
+        <artifactId>portfolio-api</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <artifactId>domain</artifactId>
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>jakarta.validation</groupId>
+            <artifactId>jakarta.validation-api</artifactId>
+        </dependency>
+    </dependencies>
+</project>

domain/src/main/java/com/pablotj/portfolio/domain/project/Project.java

@@ -0,0 +1,13 @@
+package com.pablotj.portfolio.domain.project;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class Project {
+    private final ProjectId id;
+    private final String title;
+    private final String description;
+    private final String url;
+}

domain/src/main/java/com/pablotj/portfolio/domain/project/ProjectId.java

@@ -0,0 +1,7 @@
+package com.pablotj.portfolio.domain.project;
+
+public record ProjectId(Long value) {
+    public ProjectId {
+        if (value != null && value < 0) throw new IllegalArgumentException("ProjectId must be positive");
+    }
+}

domain/src/main/java/com/pablotj/portfolio/domain/project/port/ProjectRepositoryPort.java

@@ -0,0 +1,13 @@
+package com.pablotj.portfolio.domain.project.port;
+
+import com.pablotj.portfolio.domain.project.Project;
+import com.pablotj.portfolio.domain.project.ProjectId;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface ProjectRepositoryPort {
+    Project save(Project p);
+    Optional<Project> findById(ProjectId id);
+    List<Project> findAll();
+}