diff --git a/pom.xml b/pom.xml
index a2b67d6..7247944 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
     <groupId>com.loafle.overflow</groupId>
     <artifactId>commons-java</artifactId>
     <packaging>jar</packaging>
-    <version>1.0.110-SNAPSHOT</version>
+    <version>1.0.111-SNAPSHOT</version>
     <name>com.loafle.overflow.commons-java</name>
 
     <properties>
diff --git a/src/main/java/com/loafle/overflow/model/meta/MetaCrawler.java b/src/main/java/com/loafle/overflow/model/meta/MetaCrawler.java
index 0543cd7..fcb36de 100644
--- a/src/main/java/com/loafle/overflow/model/meta/MetaCrawler.java
+++ b/src/main/java/com/loafle/overflow/model/meta/MetaCrawler.java
@@ -13,10 +13,6 @@ public class MetaCrawler {
   @Id
   private Short id;
 
-  @ManyToOne
-  @JoinColumn(name = "META_CRAWLER_CONTAINER_ID", nullable = false)
-  private MetaCrawlerContainer metaCrawlerContainer;
-
   @Column(name = "KEY", nullable = true, length = 50)
   private String key;
 
@@ -31,7 +27,6 @@ public class MetaCrawler {
   @Column(name = "CREATE_DATE", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
   private Date createDate;
 
-
   public Short getId() {
     return id;
   }
@@ -40,14 +35,6 @@ public class MetaCrawler {
     this.id = id;
   }
 
-  public MetaCrawlerContainer getMetaCrawlerContainer() {
-    return metaCrawlerContainer;
-  }
-
-  public void setMetaCrawlerContainer(MetaCrawlerContainer metaCrawlerContainer) {
-    this.metaCrawlerContainer = metaCrawlerContainer;
-  }
-
   public String getKey() {
     return key;
   }
diff --git a/src/main/java/com/loafle/overflow/model/meta/MetaCrawlerMapping.java b/src/main/java/com/loafle/overflow/model/meta/MetaCrawlerMapping.java
index ef2aa4d..0dd2ccd 100644
--- a/src/main/java/com/loafle/overflow/model/meta/MetaCrawlerMapping.java
+++ b/src/main/java/com/loafle/overflow/model/meta/MetaCrawlerMapping.java
@@ -33,6 +33,10 @@ public class MetaCrawlerMapping {
   @Column(name = "CREATE_DATE", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
   private Date createDate;
 
+  @ManyToOne
+  @JoinColumn(name = "META_CRAWLER_CONTAINER_ID", nullable = false)
+  private MetaCrawlerContainer metaCrawlerContainer;
+
   public Long getId() {
     return id;
   }
@@ -73,6 +77,14 @@ public class MetaCrawlerMapping {
     isDefault = aDefault;
   }
 
+  public MetaCrawlerContainer getMetaCrawlerContainer() {
+    return metaCrawlerContainer;
+  }
+
+  public void setMetaCrawlerContainer(MetaCrawlerContainer metaCrawlerContainer) {
+    this.metaCrawlerContainer = metaCrawlerContainer;
+  }
+
   public Date getCreateDate() {
     return createDate;
   }
diff --git a/src/main/java/com/loafle/overflow/model/sensor/Sensor.java b/src/main/java/com/loafle/overflow/model/sensor/Sensor.java
index 1f17221..0357f37 100644
--- a/src/main/java/com/loafle/overflow/model/sensor/Sensor.java
+++ b/src/main/java/com/loafle/overflow/model/sensor/Sensor.java
@@ -48,6 +48,9 @@ public class Sensor {
   @Column(name = "CREATE_DATE", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
   private Date createDate;
 
+  @Column(name = "INTERVAL", nullable = false)
+  private Integer interval;
+
   @Transient
   private List<MetaDisplayItem> sensorItems;