com.univocity.parsers.conversions
Interface Conversion<I,O>

Type Parameters:

I - The input type to be converted to the output type O

O - The type of outputs produced by a conversion applied to the an input I. When used in conjunction with the Convert annotation, O should be compatible with the type of the annotated field.

All Known Implementing Classes:

BigDecimalConversion, BigIntegerConversion, BooleanConversion, ByteConversion, CalendarConversion, CharacterConversion, DateConversion, DoubleConversion, EnumConversion, FloatConversion, FormattedBigDecimalConversion, FormattedDateConversion, IntegerConversion, LongConversion, LowerCaseConversion, NullConversion, NullStringConversion, NumericConversion, ObjectConversion, RegexConversion, ShortConversion, ToStringConversion, TrimConversion, UpperCaseConversion

public interface Conversion<I,O>

The interface that defines the conversion from one type of value to another, and vice versa. uniVocity-parsers provides a set of default conversions for usage with ObjectRowProcessor and ObjectRowWriterProcessor. Annotations in package com.univocity.parsers.annotations are associated with different Conversion implementations in com.univocity.parsers.conversions.

Author:

uniVocity Software Pty Ltd - parsers@univocity.com

See Also:

ObjectRowProcessor, ObjectRowWriterProcessor

Method Summary

O	execute(I input) Converts a value of type I to a value of type O.
I	revert(O input) Converts a value of type O to a value of type I.

Method Detail

execute

O execute(I input)

Converts a value of type I to a value of type O. When used in conjunction with the Convert annotation, this method will perform the conversion from a parsed input String (if no other conversion has been applied before) to a value of the desired type, and the result will be assigned to the annotated field. Note that conversions can be chained so you need to make sure the input type of any previous conversion is compatible with I

Parameters:

input - the input of type I to be converted to an object of type O

Returns:

the conversion result.

revert

I revert(O input)

Converts a value of type O to a value of type I. When used in conjunction with the Convert annotation, this method will convert the value of the annotated field so it can be written to the output (usually a String). Note that conversions can be chained so you need to make sure the type of any previous conversion is compatible with O

Parameters:

input - the input of type O to be converted to an object of type I

Returns:

the conversion result.