refactor prepared statements

src/casser/Example.java

@@ -1,7 +1,7 @@
 package casser;
 
 import casser.core.Casser;
-import casser.core.PreparedStreamStatement;
+import casser.core.Prepared;
 import casser.core.Session;
 import casser.operation.SelectOperation;
 import casser.tuple.Tuple1;
@@ -38,8 +38,7 @@ public class Example {
 		
 		session.delete().where(_user::getId, "==", 100L).async();
 		
-		
-		PreparedStreamStatement<Tuple1<String>, SelectOperation<Tuple1<String>>> ps = session.select(_user::getName).where(_user::getId, "==", null).prepare();
+		Prepared<SelectOperation<Tuple1<String>>> ps = session.select(_user::getName).where(_user::getId, "==", null).prepare();
 		
 		long cnt = ps.bind(100L).sync().count();
 		

src/casser/core/Prepared.java

@@ -0,0 +1,10 @@
+package casser.core;
+
+
+public class Prepared<O> {
+
+	public O bind(Object... params) {
+		return null;
+	}
+	
+}

src/casser/core/PreparedStatement.java

@@ -1,11 +0,0 @@
-package casser.core;
-
-import casser.operation.AbstractOperation;
-
-public class PreparedStatement<E, O extends AbstractOperation<E, O>> {
-
-	public AbstractOperation<E, O> bind(Object... params) {
-		return null;
-	}
-	
-}

src/casser/core/PreparedStreamStatement.java

@@ -1,11 +0,0 @@
-package casser.core;
-
-import casser.operation.AbstractStreamOperation;
-
-public class PreparedStreamStatement<E, O extends AbstractStreamOperation<E, O>> {
-
-	public AbstractStreamOperation<E, O> bind(Object... params) {
-		return null;
-	}
-	
-}

src/casser/operation/AbstractOperation.java

@@ -2,11 +2,11 @@ package casser.operation;
 
 import java.util.concurrent.Future;
 
-import casser.core.PreparedStatement;
+import casser.core.Prepared;
 
 public abstract class AbstractOperation<E, O extends AbstractOperation<E, O>> {
 
-	public PreparedStatement<E, O> prepare() {
+	public Prepared<O> prepare() {
 		return null;
 	}
 	

src/casser/operation/AbstractStreamOperation.java

@@ -3,11 +3,11 @@ package casser.operation;
 import java.util.concurrent.Future;
 import java.util.stream.Stream;
 
-import casser.core.PreparedStreamStatement;
+import casser.core.Prepared;
 
 public abstract class AbstractStreamOperation<E, O extends AbstractStreamOperation<E, O>> {
 
-	public PreparedStreamStatement<E, O> prepare() {
+	public Prepared<O> prepare() {
 		return null;
 	}