Package science.aist.jack.persistence.filesystem.implementation

Class ReflectionCSVProcessor<T>

java.lang.Object

science.aist.jack.persistence.filesystem.implementation.CSVProcessor<T>

science.aist.jack.persistence.filesystem.implementation.ReflectionCSVProcessor<T>

All Implemented Interfaces:

CSVReader<T>, CSVWriter<T>

Direct Known Subclasses:

AdvancedCsvProcessor

public class ReflectionCSVProcessor<T>
extends CSVProcessor<T>

Reflection based implementation for reading/writing CSV files.

Since:

2.0

Author:

Christoph Praschl

Field Summary

Fields inherited from class science.aist.jack.persistence.filesystem.implementation.CSVProcessor

columnDefinition, columnsToElementFunc, elementToFunc, separator

Constructor Summary

Constructors

Constructor	Description
ReflectionCSVProcessor(char separator, List<String> columnDefinition, Class<T> clazz)	Constructor of a ReflectionCSVProcessor for domain types with simple-typed properties only (int, double, float, long, boolean, char, Integer, Float, Double, Long, String, Character, Boolean)

Method Summary

Modifier and Type	Method	Description
void	addFieldConverter(Class<?> clazz, Function<String,Object> converter)	Add a converter for the given class.
void	addIgnoredField(String fieldName)	Add a field which will be ignored so it won't be read or written

Methods inherited from class science.aist.jack.persistence.filesystem.implementation.CSVProcessor

getProcessor, getProcessor, getReader, getReader, getWriter, normalizeColumnDefinition, normalizeRow, read, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface science.aist.jack.persistence.filesystem.CSVReader

read, read

Methods inherited from interface science.aist.jack.persistence.filesystem.CSVWriter

write

Constructor Detail

ReflectionCSVProcessor

public ReflectionCSVProcessor(char separator,
                              List<String> columnDefinition,
                              Class<T> clazz)

Constructor of a ReflectionCSVProcessor for domain types with simple-typed properties only (int, double, float, long, boolean, char, Integer, Float, Double, Long, String, Character, Boolean)

Parameters:

separator - separator used in the csv file

columnDefinition - columnDefinition of the csv file (can be null for reading if the CSV file contains a header which is used in CSVProcessor.read(File, boolean, boolean))

clazz - clazz of domain type

Method Detail

addIgnoredField

public void addIgnoredField(String fieldName)

Add a field which will be ignored so it won't be read or written

Parameters:

fieldName - name of the ignored field

addFieldConverter

public void addFieldConverter(Class<?> clazz,
                              Function<String,Object> converter)

Add a converter for the given class. This converter will be used for converting the CSV string to the expected field type. Using this method you can also override the default converters for simple-typed properties only (int, double, float, long, boolean, char, Integer, Float, Double, Long, String, Character, Boolean)

Parameters:

clazz - for which the converter will be used

converter - converter which transforms the given csv value to an object of the expected type