001/*
002 * Copyright 2006-2019 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.batch.item.file.transform;
018
019
020import org.springframework.lang.Nullable;
021
022/**
023 * Interface that is used by framework to split string obtained typically from a
024 * file into tokens.
025 * 
026 * @author tomas.slanina
027 * @author Mahmoud Ben Hassine
028 * 
029 */
030public interface LineTokenizer {
031        
032        /**
033         * Yields the tokens resulting from the splitting of the supplied
034         * <code>line</code>.
035         * 
036         * @param line the line to be tokenized (can be <code>null</code>)
037         * 
038         * @return the resulting tokens
039         */
040        FieldSet tokenize(@Nullable String line);
041}