changed usersession fetchtype to lazy

chatto/src/main/java/org/ros/chatto/model/UserSession.java

@@ -2,7 +2,9 @@ package org.ros.chatto.model;
 
 import java.time.Instant;
 
+import javax.persistence.CascadeType;
 import javax.persistence.Entity;
+import javax.persistence.FetchType;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
@@ -10,8 +12,6 @@ import javax.persistence.JoinColumn;
 import javax.persistence.OneToOne;
 import javax.persistence.Table;
 
-import org.ros.chatto.model.ChatUser;
-
 import lombok.Data;
 
 @Data
@@ -22,7 +22,7 @@ public class UserSession {
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	private int id;
 //	private String sessionId;
-	@OneToOne
+	@OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
 	@JoinColumn(name = "user_id")
 	private ChatUser user;