Add ids for API, application and page. Minor clean up

src/main/java/io/gravitee/repository/management/model/Api.java

@@ -23,6 +23,11 @@
  */
 public class Api {
 
+    /**
+     * The api ID.
+     */
+    private String id;
+
     /**
      * The api name.
      */
@@ -127,6 +132,14 @@ public void setDefinition(String definition) {
         this.definition = definition;
     }
 
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
@@ -144,6 +157,7 @@ public int hashCode() {
     @Override
     public String toString() {
         final StringBuilder sb = new StringBuilder("Api{");
+        sb.append("id='").append(id).append('\'');
         sb.append("name='").append(name).append('\'');
         sb.append(", version='").append(version).append('\'');
         sb.append(", lifecycleState=").append(lifecycleState);

src/main/java/io/gravitee/repository/management/model/Application.java

@@ -23,6 +23,11 @@
  */
 public class Application {
 
+    /**
+     * The application ID.
+     */
+    private String id;
+
     /**
      * The application name
      */
@@ -89,22 +94,31 @@ public void setUpdatedAt(Date updatedAt) {
         this.updatedAt = updatedAt;
     }
 
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
         Application that = (Application) o;
-        return Objects.equals(name, that.name);
+        return Objects.equals(id, that.id);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(name);
+        return Objects.hash(id);
     }
 
     @Override
     public String toString() {
         final StringBuilder sb = new StringBuilder("Application{");
+        sb.append("id='").append(id).append('\'');
         sb.append("name='").append(name).append('\'');
         sb.append(", type='").append(type).append('\'');
         sb.append('}');