diff --git a/DaoCore/src/main/java/org/greenrobot/greendao/database/Database.java b/DaoCore/src/main/java/org/greenrobot/greendao/database/Database.java
index fbc1e8c33..1634e72f0 100644
--- a/DaoCore/src/main/java/org/greenrobot/greendao/database/Database.java
+++ b/DaoCore/src/main/java/org/greenrobot/greendao/database/Database.java
@@ -40,6 +40,8 @@ public interface Database {
 
     boolean isDbLockedByCurrentThread();
 
+    boolean isOpen();
+
     void close();
 
     Object getRawDatabase();
diff --git a/DaoCore/src/main/java/org/greenrobot/greendao/database/EncryptedDatabase.java b/DaoCore/src/main/java/org/greenrobot/greendao/database/EncryptedDatabase.java
index 3906cabec..c586ab4ce 100644
--- a/DaoCore/src/main/java/org/greenrobot/greendao/database/EncryptedDatabase.java
+++ b/DaoCore/src/main/java/org/greenrobot/greendao/database/EncryptedDatabase.java
@@ -72,6 +72,11 @@ public boolean isDbLockedByCurrentThread() {
         return delegate.isDbLockedByCurrentThread();
     }
 
+    @Override
+    public boolean isOpen() {
+        return delegate.isOpen();
+    }
+
     @Override
     public void close() {
         delegate.close();
diff --git a/DaoCore/src/main/java/org/greenrobot/greendao/database/StandardDatabase.java b/DaoCore/src/main/java/org/greenrobot/greendao/database/StandardDatabase.java
index ff7493271..6106f8143 100644
--- a/DaoCore/src/main/java/org/greenrobot/greendao/database/StandardDatabase.java
+++ b/DaoCore/src/main/java/org/greenrobot/greendao/database/StandardDatabase.java
@@ -72,6 +72,11 @@ public boolean isDbLockedByCurrentThread() {
         return delegate.isDbLockedByCurrentThread();
     }
 
+    @Override
+    public boolean isOpen() {
+        return delegate.isOpen();
+    }
+
     @Override
     public void close() {
         delegate.close();