Spring Framework

org.springframework.core.convert.converter
Interface ConditionalGenericConverter

All Superinterfaces:
GenericConverter

public interface ConditionalGenericConverter
extends GenericConverter

A generic converter that conditionally executes.

Applies a rule that determines if a converter between a set of convertible types matches given a client request to convert between a source field of convertible type S and a target field of convertible type T.

Often used to selectively match custom conversion logic based on the presence of a field or class-level characteristic, such as an annotation or method. For example, when converting from a String field to a Date field, an implementation might return true if the target field has also been annotated with @DateTimeFormat.

As another example, when converting from a String field to an Account field, an implementation might return true if the target Account class defines a public static findAccount(String) method.

Since:
3.0
Author:
Keith Donald

Nested Class Summary
 
Nested classes/interfaces inherited from interface org.springframework.core.convert.converter.GenericConverter
GenericConverter.ConvertiblePair
 
Method Summary
 boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType)
          Should the converter from sourceType to targetType currently under consideration be selected?
 
Methods inherited from interface org.springframework.core.convert.converter.GenericConverter
convert, getConvertibleTypes
 

Method Detail

matches

boolean matches(TypeDescriptor sourceType,
                TypeDescriptor targetType)
Should the converter from sourceType to targetType currently under consideration be selected?

Parameters:
sourceType - the type descriptor of the field we are converting from
targetType - the type descriptor of the field we are converting to
Returns:
true if conversion should be performed, false otherwise

Spring Framework