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 /*
  * Copyright 2006-2007 the original author or authors.
  *
  * 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 org.springframework.batch.item.file;
Interface for mapping lines (strings) to domain objects typically used to map lines read from a file to domain objects on a per line basis. Implementations of this interface perform the actual work of parsing a line without having to deal with how the line was obtained.

Parameters:
<T> type of the domain object
Author(s):
Robert Kasanicky
Since:
2.0
See also:
org.springframework.batch.item.file.mapping.FieldSetMapper
org.springframework.batch.item.file.transform.LineTokenizer
public interface LineMapper<T> {

Implementations must implement this method to map the provided line to the parameter type T. The line number represents the number of lines into a file the current line resides.

Parameters:
line to be mapped
lineNumber of the current line
Returns:
mapped object of type T
Throws:
java.lang.Exception if error occured while parsing.
mapLine(String lineint lineNumberthrows Exception;
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