Add admin boolean for users.

src/main/java/org/cerberus/constant/Role.java

@@ -0,0 +1,6 @@
+package org.cerberus.constant;
+
+public enum Role {
+    VIEWER,
+    MAINTAINER;
+}

src/main/java/org/cerberus/constant/RoleSecurity.java

@@ -0,0 +1,7 @@
+package org.cerberus.constant;
+
+public class RoleSecurity {
+    public static final String VIEWER = Role.VIEWER.name();
+    public static final String MAINTAINER = Role.MAINTAINER.name();
+    public static final String ADMIN = "ADMIN";
+}

src/main/java/org/cerberus/entities/persistence/User.java

@@ -25,6 +25,9 @@ public class User {
     @Column(nullable = false)
     private String password;
 
+    @Column(nullable = false)
+    private Boolean isAdmin = false;
+
     @Column(nullable = false)
     @Generated(GenerationTime.ALWAYS)
     private LocalDate inscriptionDate;
@@ -64,6 +67,14 @@ public class User {
         this.password = password;
     }
 
+    public Boolean getAdmin() {
+        return isAdmin;
+    }
+
+    public void setAdmin(Boolean admin) {
+        isAdmin = admin;
+    }
+
     public LocalDate getInscriptionDate() {
         return inscriptionDate;
     }

src/main/sql/1.0.0-SNAPSHOT

@@ -4,6 +4,7 @@ CREATE TABLE "user" (
     email VARCHAR NOT NULL UNIQUE,
     password VARCHAR NOT NULL,
     inscription_date DATE DEFAULT current_date,
+    is_admin BOOLEAN NOT NULL DEFAULT FALSE,
     CONSTRAINT user_pk PRIMARY KEY (id)
 );