From 45e5aa06b75b2ee468238b3cc8bd4cb5f1e03e29 Mon Sep 17 00:00:00 2001
From: Bill Bensing <billbensing@wb3tech.com>
Date: Tue, 21 Jan 2020 06:42:33 -0500
Subject: [PATCH 1/2] non-backward compatable changes, removed RequestHandler,
 changed namespaces, added interfaces for request, responsee, commandusecase,
 queryuseecase.  updated to version 1.0.0 to refelect breaking api changes

---
 pom.xml                                             | 10 +++++-----
 .../java/com/wb3tech/kernel/RequestHandler.java     |  5 -----
 src/main/java/com/wb3tech/kernel/UseCase.java       |  5 -----
 .../java/com/wb3tech/kernel/boundary/Request.java   |  4 ++++
 .../java/com/wb3tech/kernel/boundary/Response.java  |  4 ++++
 .../wb3tech/kernel/conroller/CommandUseCase.java    |  5 +++++
 .../com/wb3tech/kernel/conroller/QueryUseCase.java  |  8 ++++++++
 .../java/com/wb3tech/kernel/conroller/UseCase.java  |  4 ++++
 .../com/wb3tech/kernel/{ => entity}/Entity.java     |  2 +-
 .../wb3tech/kernel/{ => entity}/Identifiable.java   |  2 +-
 .../com/wb3tech/kernel/{ => entity}/Identity.java   |  4 ++--
 .../wb3tech/kernel/valueobject/EmailAddress.java    |  2 --
 .../java/com/wb3tech/kernel/valueobject/Person.java |  2 --
 .../com/wb3tech/kernel/valueobject/Username.java    |  2 --
 .../kernel/{ => valueobject}/ValueObject.java       |  2 +-
 src/test/java/com/wb3tech/kernel/EntityTests.java   | 13 +++++++++++--
 src/test/java/com/wb3tech/kernel/IdentityTests.java |  1 +
 17 files changed, 47 insertions(+), 28 deletions(-)
 delete mode 100644 src/main/java/com/wb3tech/kernel/RequestHandler.java
 delete mode 100644 src/main/java/com/wb3tech/kernel/UseCase.java
 create mode 100644 src/main/java/com/wb3tech/kernel/boundary/Request.java
 create mode 100644 src/main/java/com/wb3tech/kernel/boundary/Response.java
 create mode 100644 src/main/java/com/wb3tech/kernel/conroller/CommandUseCase.java
 create mode 100644 src/main/java/com/wb3tech/kernel/conroller/QueryUseCase.java
 create mode 100644 src/main/java/com/wb3tech/kernel/conroller/UseCase.java
 rename src/main/java/com/wb3tech/kernel/{ => entity}/Entity.java (93%)
 rename src/main/java/com/wb3tech/kernel/{ => entity}/Identifiable.java (62%)
 rename src/main/java/com/wb3tech/kernel/{ => entity}/Identity.java (96%)
 rename src/main/java/com/wb3tech/kernel/{ => valueobject}/ValueObject.java (79%)

diff --git a/pom.xml b/pom.xml
index 5db8344..85b3dbf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,15 +6,12 @@
 
     <groupId>com.wb3tech</groupId>
     <artifactId>kernel</artifactId>
-    <version>0.3.0</version>
+    <version>1.0.0</version>
 
     <properties>
-        <java.version>13</java.version>
         <junit.jupiter.version>5.6.0-M1</junit.jupiter.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.target>${java.version}</maven.compiler.target>
-        <maven.compiler.source>${java.version}</maven.compiler.source>
-        <maven.compiler.release>${java.version}</maven.compiler.release>
+        <maven.compiler.release>11</maven.compiler.release>
         <maven.compiler.plugin.version>3.8.1</maven.compiler.plugin.version>
         <maven.surefire.plugin.version>3.0.0-M4</maven.surefire.plugin.version>
     </properties>
@@ -34,6 +31,9 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven.compiler.plugin.version}</version>
+                <configuration>
+                    <release>${maven.compiler.release}</release>
+                </configuration>
             </plugin>
 
             <plugin>
diff --git a/src/main/java/com/wb3tech/kernel/RequestHandler.java b/src/main/java/com/wb3tech/kernel/RequestHandler.java
deleted file mode 100644
index 1ebdfde..0000000
--- a/src/main/java/com/wb3tech/kernel/RequestHandler.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.wb3tech.kernel;
-
-public interface RequestHandler<Request> {
-    void Handle(Request request);
-}
diff --git a/src/main/java/com/wb3tech/kernel/UseCase.java b/src/main/java/com/wb3tech/kernel/UseCase.java
deleted file mode 100644
index f57360a..0000000
--- a/src/main/java/com/wb3tech/kernel/UseCase.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.wb3tech.kernel;
-
-public interface UseCase {
-    void execute();
-}
diff --git a/src/main/java/com/wb3tech/kernel/boundary/Request.java b/src/main/java/com/wb3tech/kernel/boundary/Request.java
new file mode 100644
index 0000000..90f86c7
--- /dev/null
+++ b/src/main/java/com/wb3tech/kernel/boundary/Request.java
@@ -0,0 +1,4 @@
+package com.wb3tech.kernel.boundary;
+
+public interface Request {
+}
diff --git a/src/main/java/com/wb3tech/kernel/boundary/Response.java b/src/main/java/com/wb3tech/kernel/boundary/Response.java
new file mode 100644
index 0000000..a43a9ea
--- /dev/null
+++ b/src/main/java/com/wb3tech/kernel/boundary/Response.java
@@ -0,0 +1,4 @@
+package com.wb3tech.kernel.boundary;
+
+public interface Response {
+}
diff --git a/src/main/java/com/wb3tech/kernel/conroller/CommandUseCase.java b/src/main/java/com/wb3tech/kernel/conroller/CommandUseCase.java
new file mode 100644
index 0000000..bc217ea
--- /dev/null
+++ b/src/main/java/com/wb3tech/kernel/conroller/CommandUseCase.java
@@ -0,0 +1,5 @@
+package com.wb3tech.kernel.conroller;
+
+public interface CommandUseCase<T> extends UseCase {
+    void execute(T command);
+}
diff --git a/src/main/java/com/wb3tech/kernel/conroller/QueryUseCase.java b/src/main/java/com/wb3tech/kernel/conroller/QueryUseCase.java
new file mode 100644
index 0000000..434df40
--- /dev/null
+++ b/src/main/java/com/wb3tech/kernel/conroller/QueryUseCase.java
@@ -0,0 +1,8 @@
+package com.wb3tech.kernel.conroller;
+
+import com.wb3tech.kernel.boundary.Request;
+import com.wb3tech.kernel.boundary.Response;
+
+public interface QueryUseCase<Req extends Request, Resp extends Response> {
+    Resp execute(Req request);
+}
diff --git a/src/main/java/com/wb3tech/kernel/conroller/UseCase.java b/src/main/java/com/wb3tech/kernel/conroller/UseCase.java
new file mode 100644
index 0000000..90845f1
--- /dev/null
+++ b/src/main/java/com/wb3tech/kernel/conroller/UseCase.java
@@ -0,0 +1,4 @@
+package com.wb3tech.kernel.conroller;
+
+public interface UseCase {
+}
diff --git a/src/main/java/com/wb3tech/kernel/Entity.java b/src/main/java/com/wb3tech/kernel/entity/Entity.java
similarity index 93%
rename from src/main/java/com/wb3tech/kernel/Entity.java
rename to src/main/java/com/wb3tech/kernel/entity/Entity.java
index 44b2b08..f4f7b3a 100644
--- a/src/main/java/com/wb3tech/kernel/Entity.java
+++ b/src/main/java/com/wb3tech/kernel/entity/Entity.java
@@ -1,4 +1,4 @@
-package com.wb3tech.kernel;
+package com.wb3tech.kernel.entity;
 
 public abstract class Entity implements Identifiable {
 
diff --git a/src/main/java/com/wb3tech/kernel/Identifiable.java b/src/main/java/com/wb3tech/kernel/entity/Identifiable.java
similarity index 62%
rename from src/main/java/com/wb3tech/kernel/Identifiable.java
rename to src/main/java/com/wb3tech/kernel/entity/Identifiable.java
index dc136bc..d0484ce 100644
--- a/src/main/java/com/wb3tech/kernel/Identifiable.java
+++ b/src/main/java/com/wb3tech/kernel/entity/Identifiable.java
@@ -1,4 +1,4 @@
-package com.wb3tech.kernel;
+package com.wb3tech.kernel.entity;
 
 public interface Identifiable {
 
diff --git a/src/main/java/com/wb3tech/kernel/Identity.java b/src/main/java/com/wb3tech/kernel/entity/Identity.java
similarity index 96%
rename from src/main/java/com/wb3tech/kernel/Identity.java
rename to src/main/java/com/wb3tech/kernel/entity/Identity.java
index 74acff9..1ded1be 100644
--- a/src/main/java/com/wb3tech/kernel/Identity.java
+++ b/src/main/java/com/wb3tech/kernel/entity/Identity.java
@@ -1,4 +1,4 @@
-package com.wb3tech.kernel;
+package com.wb3tech.kernel.entity;
 
 import java.util.UUID;
 
@@ -61,7 +61,7 @@ public UUID value() {
         return this.id;
     }
 
-    protected Identity copy() {
+    public Identity copy() {
         return new Identity(this.id);
     }
 
diff --git a/src/main/java/com/wb3tech/kernel/valueobject/EmailAddress.java b/src/main/java/com/wb3tech/kernel/valueobject/EmailAddress.java
index b0aecf8..a9f5ad3 100644
--- a/src/main/java/com/wb3tech/kernel/valueobject/EmailAddress.java
+++ b/src/main/java/com/wb3tech/kernel/valueobject/EmailAddress.java
@@ -1,7 +1,5 @@
 package com.wb3tech.kernel.valueobject;
 
-import com.wb3tech.kernel.ValueObject;
-
 import java.util.regex.Pattern;
 
 public class EmailAddress extends ValueObject {
diff --git a/src/main/java/com/wb3tech/kernel/valueobject/Person.java b/src/main/java/com/wb3tech/kernel/valueobject/Person.java
index 5d7ce0d..d2e91bb 100644
--- a/src/main/java/com/wb3tech/kernel/valueobject/Person.java
+++ b/src/main/java/com/wb3tech/kernel/valueobject/Person.java
@@ -1,7 +1,5 @@
 package com.wb3tech.kernel.valueobject;
 
-import com.wb3tech.kernel.ValueObject;
-
 public class Person extends ValueObject {
 
     private String givenName;
diff --git a/src/main/java/com/wb3tech/kernel/valueobject/Username.java b/src/main/java/com/wb3tech/kernel/valueobject/Username.java
index eea0f8f..055a006 100644
--- a/src/main/java/com/wb3tech/kernel/valueobject/Username.java
+++ b/src/main/java/com/wb3tech/kernel/valueobject/Username.java
@@ -1,7 +1,5 @@
 package com.wb3tech.kernel.valueobject;
 
-import com.wb3tech.kernel.ValueObject;
-
 public class Username extends ValueObject {
 
     public String value;
diff --git a/src/main/java/com/wb3tech/kernel/ValueObject.java b/src/main/java/com/wb3tech/kernel/valueobject/ValueObject.java
similarity index 79%
rename from src/main/java/com/wb3tech/kernel/ValueObject.java
rename to src/main/java/com/wb3tech/kernel/valueobject/ValueObject.java
index 01c04ec..c7f90df 100644
--- a/src/main/java/com/wb3tech/kernel/ValueObject.java
+++ b/src/main/java/com/wb3tech/kernel/valueobject/ValueObject.java
@@ -1,4 +1,4 @@
-package com.wb3tech.kernel;
+package com.wb3tech.kernel.valueobject;
 
 public abstract class ValueObject {
 
diff --git a/src/test/java/com/wb3tech/kernel/EntityTests.java b/src/test/java/com/wb3tech/kernel/EntityTests.java
index 65bada3..e7c3382 100644
--- a/src/test/java/com/wb3tech/kernel/EntityTests.java
+++ b/src/test/java/com/wb3tech/kernel/EntityTests.java
@@ -1,5 +1,7 @@
 package com.wb3tech.kernel;
 
+import com.wb3tech.kernel.entity.Entity;
+import com.wb3tech.kernel.entity.Identity;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Tag;
@@ -24,7 +26,7 @@ public void ContainsValidIdentity() {
     @DisplayName("When a null Identity is provided, the entity should throw a NullPointerException with the message 'The identity is null.' .")
     public void IdentityThrowNullPointerException() {
 
-        var exception = assertThrows(NullPointerException.class, () -> new ExampleEntity().setId(null));
+        var exception = assertThrows(NullPointerException.class, () -> ExampleEntity.Of(null));
         Assertions.assertEquals("The identity is null.", exception.getMessage());
     }
 
@@ -33,7 +35,7 @@ public void IdentityThrowNullPointerException() {
     @DisplayName("When an invalid Identity is provided, the entity should throw a IllegalStateException with the message 'The identity is not valid.' .")
     public void IdentityThrowIllegalStateException() {
 
-        var exception = assertThrows(IllegalStateException.class, () -> new ExampleEntity().setId(Identity.Default()));
+        var exception = assertThrows(IllegalStateException.class, () -> ExampleEntity.Of(Identity.Default()));
         Assertions.assertEquals("The identity is not valid.", exception.getMessage());
 
     }
@@ -63,4 +65,11 @@ public void setValidIdentity() {
     public void setIdentity(Identity id) {
         this.setId(id);
     }
+
+    public static Entity Of(Identity identity) {
+       var entity = new ExampleEntity();
+       entity.setIdentity(identity);
+       return entity;
+    }
+
 }
diff --git a/src/test/java/com/wb3tech/kernel/IdentityTests.java b/src/test/java/com/wb3tech/kernel/IdentityTests.java
index ab47dc3..1f23710 100644
--- a/src/test/java/com/wb3tech/kernel/IdentityTests.java
+++ b/src/test/java/com/wb3tech/kernel/IdentityTests.java
@@ -1,5 +1,6 @@
 package com.wb3tech.kernel;
 
+import com.wb3tech.kernel.entity.Identity;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Tag;

From 5c9d3bdfdf359cb68ed433d4b295434a1377e211 Mon Sep 17 00:00:00 2001
From: Bill Bensing <billbensing@wb3tech.com>
Date: Tue, 21 Jan 2020 06:50:38 -0500
Subject: [PATCH 2/2] moved tests to namespace which reflects the source code

---
 .../java/com/wb3tech/kernel/{ => entity}/EntityTests.java     | 4 +---
 .../java/com/wb3tech/kernel/{ => entity}/IdentityTests.java   | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)
 rename src/test/java/com/wb3tech/kernel/{ => entity}/EntityTests.java (95%)
 rename src/test/java/com/wb3tech/kernel/{ => entity}/IdentityTests.java (99%)

diff --git a/src/test/java/com/wb3tech/kernel/EntityTests.java b/src/test/java/com/wb3tech/kernel/entity/EntityTests.java
similarity index 95%
rename from src/test/java/com/wb3tech/kernel/EntityTests.java
rename to src/test/java/com/wb3tech/kernel/entity/EntityTests.java
index e7c3382..88d5b30 100644
--- a/src/test/java/com/wb3tech/kernel/EntityTests.java
+++ b/src/test/java/com/wb3tech/kernel/entity/EntityTests.java
@@ -1,7 +1,5 @@
-package com.wb3tech.kernel;
+package com.wb3tech.kernel.entity;
 
-import com.wb3tech.kernel.entity.Entity;
-import com.wb3tech.kernel.entity.Identity;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Tag;
diff --git a/src/test/java/com/wb3tech/kernel/IdentityTests.java b/src/test/java/com/wb3tech/kernel/entity/IdentityTests.java
similarity index 99%
rename from src/test/java/com/wb3tech/kernel/IdentityTests.java
rename to src/test/java/com/wb3tech/kernel/entity/IdentityTests.java
index 1f23710..ebd9e61 100644
--- a/src/test/java/com/wb3tech/kernel/IdentityTests.java
+++ b/src/test/java/com/wb3tech/kernel/entity/IdentityTests.java
@@ -1,4 +1,4 @@
-package com.wb3tech.kernel;
+package com.wb3tech.kernel.entity;
 
 import com.wb3tech.kernel.entity.Identity;
 import org.junit.jupiter.api.Assertions;