README.md

@@ -1,4 +1,4 @@
-# spring-rest-example
+# jpa-hospital-example
 
 This project is a example of using jpa.
 
@@ -10,6 +10,43 @@ The project uses the [Spock Framework Example Project](https://github.com/spockf
 
 - Maven use `mvnw` wrapper
 
+- Gradle use `gradlew` wrapper
+
+## Building with Gradle
+
+Downloaded files (including the Gradle distribution itself) will be stored in the Gradle user home directory (typically **user_home**`/.gradle`).
+
+Type: test
+
+```shell
+./gradlew clean test
+```
+
+Type: build
+
+```shell
+./gradlew clean build
+```
+
+Type: preparation
+- create a folder, for example, `project`.
+- copy `jpa_hospital_example-2.0.1.jar` from a release to the folder.
+  - if you build the application from source, find the file (`jpa_hospital_example-2.0.1-all.jar`) in `build/libs/`.
+- copy docker/docker-compose.yml to the folder.
+- turn up the database in the `project/docker`:
+  ```
+  docker-compose up -d
+  ```
+- wait a minute while the database is bootstrapping.
+- now you can connect with the application.
+
+Type: run
+
+After the preparation, run the application in the folder, for example, `project`:
+```shell
+java -jar jpa_hospital_example-2.0.1.jar
+```
+
 ## Building with Maven
 
 Downloaded files will be stored in the local Maven repository (typically **user_home**`/.m2/repository`).
@@ -29,7 +66,7 @@ Type: build
 
 Type: preparation
 - create a folder, for example, `project`.
-- copy `spring_rest_example-version.jar` from a release to the folder.
+- copy `jpa_hospital_example-version.jar` from a release to the folder.
   - if you build the application from source, find the file in `target/`.
 - copy docker/docker-compose.yml to the folder.
 - turn up the database in the `project/docker`:
@@ -43,7 +80,7 @@ Type: run
 
 After the preparation, run the application in the folder, for example, `project`:
 ```shell
-java -jar spring_rest_example-2.0.1.jar
+java -jar jpa_hospital_example-2.0.1.jar
 ```
 
 ## Author

src/main/java/space/kklochko/jpa_hospital_example/Main.java

@@ -0,0 +1,15 @@
+package space.kklochko.jpa_hospital_example;
+
+import jakarta.persistence.EntityManager;
+import space.kklochko.jpa_hospital_example.cli.CLI;
+import space.kklochko.jpa_hospital_example.db.factories.EntityManagerConnection;
+
+public class Main {
+    public static void main(String[] args) {
+        EntityManager manager = (new EntityManagerConnection("jpa_hospital_example")).connect();
+
+        CLI cli = new CLI(manager);
+        cli.run();
+    }
+}
+