Adding the discussion architectures and creating new discussions

backend/src/main/java/ovh/herisson/Clyde/Tables/Msg/Discussion.java

@@ -0,0 +1,44 @@
+package ovh.herisson.Clyde.Tables.Msg;
+
+import java.util.List;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.JoinTable;
+import jakarta.persistence.ManyToMany;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import ovh.herisson.Clyde.Tables.User;
+
+@Entity
+@Getter
+@Setter
+@NoArgsConstructor
+public class Discussion{
+
+	@Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+	private long id;
+	private String name;
+
+    @ManyToMany
+	@JoinTable(
+		name = "discussion_members",
+		joinColumns = @JoinColumn(name = "discussion_id"),
+		inverseJoinColumns = @JoinColumn(name = "user_id")
+	)
+	private List<User> members;
+
+	public Discussion(String name){
+		this.name = name;
+	}
+
+	public Discussion(String name, User user){
+		this.name = name;
+		this.members = List.of(user);
+	}
+}