OExtractor.java

/*
 *
 *  * Copyright 2010-2014 Orient Technologies LTD (info(at)orientechnologies.com)
 *  *
 *  * Licensed under the Apache License, Version 2.0 (the "License");
 *  * you may not use this file except in compliance with the License.
 *  * You may obtain a copy of the License at
 *  *
 *  *      http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  * Unless required by applicable law or agreed to in writing, software
 *  * distributed under the License is distributed on an "AS IS" BASIS,
 *  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  * See the License for the specific language governing permissions and
 *  * limitations under the License.
 *
 */

package com.orientechnologies.orient.etl.extractor;

import java.io.Reader;
import java.util.Iterator;

import com.orientechnologies.orient.etl.OETLComponent;
import com.orientechnologies.orient.etl.OExtractedItem;

/**
 * ETL Extractor.
 */
public interface OExtractor extends OETLComponent, Iterator<OExtractedItem> {
  void extract(final Reader iReader);

  long getProgress();

  long getTotal();

  String getUnit();
}