/*
* Copyright © 2015 Cask Data, Inc.
*
* 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 co.cask.cdap.common.io;
/**
* Process input values.
*
* {@link #process} will be called for each input, and should return {@code false} when the processing should stop.
*
* @param <T> type of the input values
* @param <R> type of the result value
*/
public interface Processor<T, R> {
/**
* Process one input value.
*
* @param input input value to process
* @return true to continue processing, false to stop
*/
boolean process(T input);
/**
* @return the result of processing all the inputs
*/
R getResult();
}