http://opencsv.sf.net: A simple library for reading and writing CSV in Java
  • Glen Smith
  • Tom Squires
  • Maciek Opala
  • J.C. Romanda
  • Sean Sullivan
  • Kyle Miller
  • Vladimir Dolzhenko
  • Scott Conway
  • Andrew Rucker Jones 
package com.opencsv.validators;

import com.opencsv.exceptions.CsvValidationException;


This is the interface for validators for a String read by the Reader in the CSVReader before it is processed. 
This should only be used if you have a very good understanding and full
control of the data being processed.


Since this is working on an individual line it may not be a full record
if an element has a newline character in it.


Author:Scott Conway
Since:5.0
/**
 * This is the interface for validators for a {@link String} read by the
 * {@link java.io.Reader} in the {@link com.opencsv.CSVReader} before it is
 * processed.
 * <p>This should only be used if you have a very good understanding and full
 * control of the data being processed.</p>
 * <p>Since this is working on an individual line it may not be a full record
 * if an element has a newline character in it.</p>
 *
 * @author Scott Conway
 * @since 5.0
 */
public interface LineValidator {
    
Performs the validation check on the string and returns the result.
While not called directly in opencsv it is in the interface to provide
an easy way to test if the validator is function properly.

Params:
  • line – String to be validated
Returns:true if the line is valid, false otherwise
/**
     * Performs the validation check on the string and returns the result.
     *
     * While not called directly in opencsv it is in the interface to provide
     * an easy way to test if the validator is function properly.
     *
     * @param line {@link String} to be validated
     * @return {@code true} if the line is valid, {@code false} otherwise
     */
    boolean isValid(String line);

    
Performs the validation check on the string and throws an exception if
invalid.

Params:
  • line – String to be validated
Throws:
/**
     * Performs the validation check on the string and throws an exception if
     * invalid.
     *
     * @param line {@link String} to be validated
     * @throws CsvValidationException Thrown if invalid. Should contain a
     * message describing the error.
     */
    void validate(String line) throws CsvValidationException;
}