--- a/java/sql-dk/src/info/globalcode/sql/dk/batch/Batch.java	Wed Jan 08 14:50:26 2014 +0100
+++ b/java/sql-dk/src/info/globalcode/sql/dk/batch/Batch.java	Wed Jan 08 19:18:52 2014 +0100
@@ -18,28 +18,14 @@
 package info.globalcode.sql.dk.batch;
 
 import info.globalcode.sql.dk.SQLCommand;
-import java.util.Iterator;
 
 /**
  *
  * @author Ing. František Kučera (frantovo.cz)
  */
-public class Batch implements Iterator<SQLCommand> {
-
-	@Override
-	public boolean hasNext() {
-		/** TODO: implement iterator */
-		throw new UnsupportedOperationException("Not supported yet.");
-	}
+public interface Batch {
 
-	@Override
-	public SQLCommand next() {
-		/** TODO: implement iterator */
-		throw new UnsupportedOperationException("Not supported yet.");
-	}
+	public boolean hasNext() throws BatchException;
 
-	@Override
-	public void remove() {
-		throw new UnsupportedOperationException("remove() is not supported");
-	}
+	public SQLCommand next() throws BatchException;
 }