/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.pact.runtime.task;
import eu.stratosphere.api.common.functions.Function;
/**
* This interface marks a {@code PactDriver} as resettable, meaning that will reset part of their internal state but
* otherwise reuse existing data structures.
*
* @see PactDriver
* @see PactTaskContext
*
* @param <S> The type of stub driven by this driver.
* @param <OT> The data type of the records produced by this driver.
*/
public interface ResettablePactDriver<S extends Function, OT> extends PactDriver<S, OT> {
boolean isInputResettable(int inputNum);
void initialize() throws Exception;
void reset() throws Exception;
void teardown() throws Exception;
}