org.mentawai.converter
Class BasicConverter

java.lang.Object
  org.mentawai.converter.BasicConverter

All Implemented Interfaces:

Converter

Direct Known Subclasses:

BooleanConverter, DoubleConverter, IntegerConverter, NullConverter, SQLToUtilDataConverter, SQLToUtilDateConverter, UtilToSQLDateConverter

public abstract class BasicConverter
extends Object
implements Converter

The simplest form of a converter that takes an object and convert it to another one. You should override this class to implement your own converters.

Author:

Sergio Oliveira

Constructor Summary

BasicConverter()

Method Summary

protected boolean	allowNull() Override this method if you want to convert null (not-present) values.
abstract Object	convert(Object value) Converts an object to another one.
Object	convert(String field, Action action) Converts a input field from this action.

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicConverter

public BasicConverter()

Method Detail

convert

public abstract Object convert(Object value)
                        throws ConversionException

Converts an object to another one. Implement this method with the convertion logic.

Parameters:

value - The object to convert.

Returns:

The new object converted.

Throws:

ConversionException - if the conversion fail for any reason.

allowNull

protected boolean allowNull()

Override this method if you want to convert null (not-present) values. Default is FALSE.

Returns:

If this converter should try to convert NULL values.

Since:

1.11

convert

public Object convert(String field,
                      Action action)
               throws ConversionException

Description copied from interface: Converter

Converts a input field from this action.

Specified by:

convert in interface Converter

Parameters:

field - The field to convert.

action - The action from where to get the field.

Returns:

The field value converted.

Throws:

ConversionException - if the field value cannot be converted.