cz.jirutka.validator.spring.support

Class RelaxedBooleanTypeConverterDecorator

java.lang.Object

cz.jirutka.validator.spring.support.RelaxedBooleanTypeConverterDecorator

All Implemented Interfaces:

org.springframework.expression.TypeConverter

public class RelaxedBooleanTypeConverterDecorator
extends Object
implements org.springframework.expression.TypeConverter

Decorator for TypeConverter that can convert numbers, collections and arrays to boolean value. Not matching types delegates to the decorated converter.

Number -> Boolean:

value = 0 ? false : true

Collection -> Boolean:

value.isEmpty()? ? false : true

Array -> Boolean:

value.length == 0 ? false : true

Else

delegate to decorated

Author:

Jakub Jirutka

Constructor Summary

Constructors

Constructor and Description
RelaxedBooleanTypeConverterDecorator(org.springframework.expression.TypeConverter decorated)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canConvert(org.springframework.core.convert.TypeDescriptor sourceType, org.springframework.core.convert.TypeDescriptor targetType)
Object	convertValue(Object value, org.springframework.core.convert.TypeDescriptor sourceType, org.springframework.core.convert.TypeDescriptor targetType)

Methods inherited from class java.lang.Object

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

Constructor Detail

RelaxedBooleanTypeConverterDecorator

public RelaxedBooleanTypeConverterDecorator(org.springframework.expression.TypeConverter decorated)

Parameters:

decorated - converter that will handle all unsupported conversions

Method Detail

canConvert

public boolean canConvert(org.springframework.core.convert.TypeDescriptor sourceType,
                 org.springframework.core.convert.TypeDescriptor targetType)

Specified by:

canConvert in interface org.springframework.expression.TypeConverter

convertValue

public Object convertValue(Object value,
                  org.springframework.core.convert.TypeDescriptor sourceType,
                  org.springframework.core.convert.TypeDescriptor targetType)

Specified by:

convertValue in interface org.springframework.expression.TypeConverter