diff --git a/pom.xml b/pom.xml
index 617c978..1bcd9dd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
     <groupId>com.loafle.overflow</groupId>
     <artifactId>commons-java</artifactId>
     <packaging>jar</packaging>
-    <version>1.0.56-SNAPSHOT</version>
+    <version>1.0.57-SNAPSHOT</version>
     <name>com.loafle.overflow.commons-java</name>
 
     <properties>
diff --git a/src/main/java/com/loafle/overflow/model/infra/Infra.java b/src/main/java/com/loafle/overflow/model/infra/Infra.java
index a441acc..9ca27ca 100644
--- a/src/main/java/com/loafle/overflow/model/infra/Infra.java
+++ b/src/main/java/com/loafle/overflow/model/infra/Infra.java
@@ -18,6 +18,14 @@ public abstract class Infra {
   private Probe probe;
   private Date createDate;
 
+  protected Infra() {
+
+  }
+
+  protected Infra(Long id) {
+    this.id = id;
+  }
+
   @Id
   @GeneratedValue(strategy = GenerationType.IDENTITY)
   public Long getId() {
diff --git a/src/main/java/com/loafle/overflow/model/infra/InfraHost.java b/src/main/java/com/loafle/overflow/model/infra/InfraHost.java
index 9d523f7..109c01c 100644
--- a/src/main/java/com/loafle/overflow/model/infra/InfraHost.java
+++ b/src/main/java/com/loafle/overflow/model/infra/InfraHost.java
@@ -23,6 +23,14 @@ public class InfraHost extends Infra {
   private List<InfraHostApplication> infraHostApplications;
   private List<InfraHostDaemon> infraHostDaemons;
 
+  public InfraHost() {
+    super();
+  }
+
+  public InfraHost(Long id) {
+    super(id);
+  }
+
   @ManyToOne
   @JoinColumn(name = "INFRA_ZONE_ID", nullable = true)
   public InfraZone getInfraZone() {
diff --git a/src/main/java/com/loafle/overflow/model/infra/InfraService.java b/src/main/java/com/loafle/overflow/model/infra/InfraService.java
index 3148ca6..7b715eb 100644
--- a/src/main/java/com/loafle/overflow/model/infra/InfraService.java
+++ b/src/main/java/com/loafle/overflow/model/infra/InfraService.java
@@ -18,6 +18,13 @@ public class InfraService extends Infra {
   private InfraHostPort infraHostPort;
   private MetaCryptoType metaCryptoType;
 
+  public InfraService() {
+    super();
+  }
+
+  public InfraService(Long id) {
+    super(id);
+  }
 
   @ManyToOne
   @JoinColumn(name = "META_TARGET_SERVICE_TYPE_ID", nullable = true)
diff --git a/src/main/java/com/loafle/overflow/model/infra/InfraZone.java b/src/main/java/com/loafle/overflow/model/infra/InfraZone.java
index 5df32c4..f51c5ae 100644
--- a/src/main/java/com/loafle/overflow/model/infra/InfraZone.java
+++ b/src/main/java/com/loafle/overflow/model/infra/InfraZone.java
@@ -20,6 +20,14 @@ public class InfraZone extends Infra {
   private String address;
   private String mac;
 
+  public InfraZone() {
+    super();
+  }
+
+  public InfraZone(Long id) {
+    super(id);
+  }
+
   @ManyToOne
   @JoinColumn(name = "META_TARGET_ZONE_TYPE_ID", nullable = true)
   public MetaTargetZoneType getMetaTargetZoneType() {