diff --git a/_examples/development/main.go b/_examples/development/main.go
index 818d18b..9e7187e 100644
--- a/_examples/development/main.go
+++ b/_examples/development/main.go
@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 	"github.com/quix-labs/flash"
-	"github.com/quix-labs/flash/drivers/trigger"
+	"github.com/quix-labs/flash/drivers/wal_logical"
 	"github.com/rs/zerolog"
 	"os"
 	"os/signal"
@@ -18,12 +18,13 @@ func main() {
 	//}
 	//pprof.StartCPUProfile(f)
 	//defer pprof.StopCPUProfile()
-
+	fmt.Println((flash.OperationTruncate).IncludeAll(flash.OperationDelete))
+	return
 	postsListenerConfig := &flash.ListenerConfig{
 		Table:              "public.posts",
 		MaxParallelProcess: 1, // In most case 1 is ideal because sync between goroutine introduce some delay
 		Fields:             []string{"id", "slug"},
-		//Conditions:         []*flash.ListenerCondition{{Column: "active", Value: true}},
+		Conditions:         []*flash.ListenerCondition{{Column: "active", Value: true}},
 	}
 	postsListener, _ := flash.NewListener(postsListenerConfig)
 
@@ -106,7 +107,7 @@ func main() {
 	// Create custom logger
 	logger := zerolog.New(os.Stdout).Level(zerolog.TraceLevel).With().Caller().Stack().Timestamp().Logger()
 
-	driver := trigger.NewDriver(&trigger.DriverConfig{
+	driver := wal_logical.NewDriver(&wal_logical.DriverConfig{
 		//UseStreaming: true,
 	})
 
diff --git a/driver.go b/driver.go
index 6c5eaaa..74c57eb 100644
--- a/driver.go
+++ b/driver.go
@@ -1,5 +1,10 @@
 package flash
 
+type DatabaseEvent struct {
+	ListenerUid string
+	Event       Event
+}
+type DatabaseEventsChan chan *DatabaseEvent
 type Driver interface {
 	Init(clientConfig *ClientConfig) error
 	Close() error
diff --git a/listener.go b/listener.go
index 8f24df9..3a3cbf1 100644
--- a/listener.go
+++ b/listener.go
@@ -22,15 +22,16 @@ type ListenerConfig struct {
 
 type CreateEventCallback func(event Operation) error
 type DeleteEventCallback func(event Operation) error
+type EventCallback func(event Event)
 
 type Listener struct {
 	Config *ListenerConfig
 
 	// Internals
 	sync.Mutex
-	callbacks      map[*EventCallback]Operation
-	listenedEvents Operation // Use bitwise comparison to check for listened events
-	semaphore      chan struct{}
+	callbacks          map[*EventCallback]Operation
+	listenedOperations Operation // Use bitwise comparison to check for listened events
+	semaphore          chan struct{}
 
 	// Trigger client
 	_clientCreateEventCallback CreateEventCallback
@@ -72,8 +73,8 @@ func (l *Listener) On(operation Operation, callback EventCallback) (func() error
 	l.callbacks[&callback] = operation
 
 	removeFunc := func() error {
-		delete(l.callbacks, &callback) // Important keep before removeListenedEventIfNeeded
-		if err := l.removeListenedEventIfNeeded(operation); err != nil {
+		delete(l.callbacks, &callback) // Important keep before removeListenedOperationIfNeeded
+		if err := l.removeListenedOperationIfNeeded(operation); err != nil {
 			return err
 		}
 		callback = nil
@@ -84,8 +85,8 @@ func (l *Listener) On(operation Operation, callback EventCallback) (func() error
 }
 
 func (l *Listener) Dispatch(event *Event) {
-	for callback, listens := range l.callbacks {
-		if listens&(*event).GetOperation() > 0 {
+	for callback, listenedOperations := range l.callbacks {
+		if listenedOperations.IncludeOne((*event).GetOperation()) {
 			if l.Config.MaxParallelProcess == -1 {
 				go (*callback)(*event)
 				continue
@@ -118,7 +119,7 @@ func (l *Listener) Init(_createCallback CreateEventCallback, _deleteCallback Del
 
 	// Emit all events for initialization
 	for targetEvent := Operation(1); targetEvent != 0 && targetEvent <= OperationAll; targetEvent <<= 1 {
-		if l.listenedEvents&targetEvent == 0 {
+		if l.listenedOperations&targetEvent == 0 {
 			continue
 		}
 		if err := _createCallback(targetEvent); err != nil {
@@ -132,11 +133,11 @@ func (l *Listener) Init(_createCallback CreateEventCallback, _deleteCallback Del
 
 func (l *Listener) addListenedEventIfNeeded(event Operation) error {
 
-	initialEvents := l.listenedEvents
-	l.listenedEvents |= event
+	initialEvents := l.listenedOperations
+	l.listenedOperations |= event
 
 	// Trigger event if change appears
-	diff := initialEvents ^ l.listenedEvents
+	diff := initialEvents ^ l.listenedOperations
 	if diff == 0 {
 		return nil
 	}
@@ -157,17 +158,17 @@ func (l *Listener) addListenedEventIfNeeded(event Operation) error {
 	return nil
 }
 
-func (l *Listener) removeListenedEventIfNeeded(event Operation) error {
+func (l *Listener) removeListenedOperationIfNeeded(event Operation) error {
 
 	for targetEvent := Operation(1); targetEvent != 0 && targetEvent <= event; targetEvent <<= 1 {
-		if targetEvent&l.listenedEvents == 0 {
+		if targetEvent&l.listenedOperations == 0 {
 			continue
 		}
 		if l.hasListenersForEvent(targetEvent) {
 			continue
 		}
 
-		l.listenedEvents &= ^targetEvent
+		l.listenedOperations &= ^targetEvent
 		if l._clientInitialized {
 			l.Lock()
 			if err := l._clientDeleteEventCallback(targetEvent); err != nil {