diff --git a/app/src/main/java/com/simplemobiletools/calendar/MonthlyCalendarImpl.java b/app/src/main/java/com/simplemobiletools/calendar/MonthlyCalendarImpl.java
index 109ebc75f..48525db3c 100644
--- a/app/src/main/java/com/simplemobiletools/calendar/MonthlyCalendarImpl.java
+++ b/app/src/main/java/com/simplemobiletools/calendar/MonthlyCalendarImpl.java
@@ -10,7 +10,7 @@ import org.joda.time.DateTime;
 import java.util.ArrayList;
 import java.util.List;
 
-public class MonthlyCalendarImpl implements DBHelper.DBOperationsListener {
+public class MonthlyCalendarImpl implements DBHelper.MonthlyEventsListener {
     private static final int DAYS_CNT = 42;
     private static final String YEAR_PATTERN = "YYYY";
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/DBHelper.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/DBHelper.kt
index 80d77f4fa..56fde96e1 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/DBHelper.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/DBHelper.kt
@@ -13,7 +13,7 @@ import com.simplemobiletools.calendar.models.Event
 import org.joda.time.DateTime
 import java.util.*
 
-class DBHelper(context: Context, callback: DBOperationsListener?) : SQLiteOpenHelper(context, DBHelper.DB_NAME, null, DBHelper.DB_VERSION) {
+class DBHelper(context: Context) : SQLiteOpenHelper(context, DBHelper.DB_NAME, null, DBHelper.DB_VERSION) {
     private val MAIN_TABLE_NAME = "events"
     private val COL_ID = "id"
     private val COL_START_TS = "start_ts"
@@ -29,7 +29,7 @@ class DBHelper(context: Context, callback: DBOperationsListener?) : SQLiteOpenHe
     private val COL_REPEAT_MONTH = "repeat_month"
     private val COL_REPEAT_DAY = "repeat_day"
 
-    private var mCallback: DBOperationsListener? = null
+    private var mCallback: MonthlyEventsListener? = null
 
     companion object {
         private val DB_NAME = "events.db"
@@ -37,10 +37,12 @@ class DBHelper(context: Context, callback: DBOperationsListener?) : SQLiteOpenHe
         lateinit private var mDb: SQLiteDatabase
     }
 
+    constructor(context: Context, callback: MonthlyEventsListener?) : this(context) {
+        mCallback = callback
+    }
+
     init {
         mDb = writableDatabase
-        mCallback = callback
-
     }
 
     override fun onCreate(db: SQLiteDatabase) {
@@ -256,7 +258,7 @@ class DBHelper(context: Context, callback: DBOperationsListener?) : SQLiteOpenHe
         return events
     }
 
-    interface DBOperationsListener {
+    interface MonthlyEventsListener {
         fun eventInserted(event: Event)
 
         fun eventUpdated(event: Event)
@@ -265,4 +267,8 @@ class DBHelper(context: Context, callback: DBOperationsListener?) : SQLiteOpenHe
 
         fun gotEvents(events: MutableList<Event>)
     }
+
+    interface YearlyEventsListener {
+        fun yearlyEvents(events: MutableList<String>)
+    }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/YearlyCalendar.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/YearlyCalendar.kt
new file mode 100644
index 000000000..5e789e6b6
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/YearlyCalendar.kt
@@ -0,0 +1,5 @@
+package com.simplemobiletools.calendar
+
+interface YearlyCalendar {
+    fun updateYearlyCalendar(events: MutableList<String>)
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/YearlyCalendarImpl.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/YearlyCalendarImpl.kt
new file mode 100644
index 000000000..4a8dba966
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/YearlyCalendarImpl.kt
@@ -0,0 +1,12 @@
+package com.simplemobiletools.calendar
+
+class YearlyCalendarImpl(year: Int) : DBHelper.YearlyEventsListener {
+
+    fun getEvents() {
+
+    }
+
+    override fun yearlyEvents(events: MutableList<String>) {
+
+    }
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt
index edddcf213..3340d8aad 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt
@@ -21,7 +21,7 @@ import kotlinx.android.synthetic.main.activity_event.*
 import org.joda.time.DateTime
 import org.joda.time.DateTimeZone
 
-class EventActivity : SimpleActivity(), DBHelper.DBOperationsListener {
+class EventActivity : SimpleActivity(), DBHelper.MonthlyEventsListener {
     private var mWasReminderInit: Boolean = false
     private var mWasEndDateSet: Boolean = false
     private var mWasEndTimeSet: Boolean = false
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/DayFragment.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/DayFragment.kt
index 034fe20be..8c40312de 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/DayFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/DayFragment.kt
@@ -23,7 +23,7 @@ import kotlinx.android.synthetic.main.day_fragment.view.*
 import kotlinx.android.synthetic.main.top_navigation.view.*
 import java.util.*
 
-class DayFragment : Fragment(), DBHelper.DBOperationsListener, AdapterView.OnItemClickListener, AbsListView.MultiChoiceModeListener {
+class DayFragment : Fragment(), DBHelper.MonthlyEventsListener, AdapterView.OnItemClickListener, AbsListView.MultiChoiceModeListener {
 
     private val EDIT_EVENT = 1
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/YearFragment.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/YearFragment.kt
index dde634b05..5289c6ad8 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/YearFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/fragments/YearFragment.kt
@@ -5,15 +5,12 @@ import android.support.v4.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import com.simplemobiletools.calendar.Config
-import com.simplemobiletools.calendar.Constants
-import com.simplemobiletools.calendar.NavigationListener
-import com.simplemobiletools.calendar.R
+import com.simplemobiletools.calendar.*
 import com.simplemobiletools.calendar.views.SmallMonthView
 import kotlinx.android.synthetic.main.year_fragment.view.*
 import org.joda.time.DateTime
 
-class YearFragment : Fragment() {
+class YearFragment : Fragment(), YearlyCalendar {
     private var mListener: NavigationListener? = null
     private var mYear = 0
     private var mSundayFirst = false
@@ -57,4 +54,8 @@ class YearFragment : Fragment() {
     fun setListener(listener: NavigationListener) {
         mListener = listener
     }
+
+    override fun updateYearlyCalendar(events: MutableList<String>) {
+
+    }
 }