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}