com.codename1.rad.models

Class DataTransformer

java.lang.Object

com.codename1.rad.models.Attribute

com.codename1.rad.models.DataTransformer

public class DataTransformer
extends Attribute

A base class for a transformer that can be registered with ContentType to add support for converting between content types.

It should rarely be necessary to implement a custom DataTransformer as the built-in content types will handle most cases, and if a custom ContentType is introduced, it will generally know how to convert to and from the basic types. This would only be necessary for converting between two content types that are not base types and do not know about each other.

Author:

shannah

Constructor Summary

Constructors

Constructor and Description
DataTransformer()

Method Summary

Modifier and Type	Method and Description
boolean	supports(ContentType source, ContentType target) Checks to see if this transformer supports the given source and target content types.
<T,V> V	transform(ContentType<T> source, ContentType<V> target, T data) Transforms data from one content type to another.

Methods inherited from class com.codename1.rad.models.Attribute

freeze, getValue

Methods inherited from class java.lang.Object

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

Constructor Detail

DataTransformer

public DataTransformer()

Method Detail

supports

public boolean supports(ContentType source,
                        ContentType target)

Checks to see if this transformer supports the given source and target content types.

Parameters:

source - The source content type.

target - The target content type.

Returns:

transform

public <T,V> V transform(ContentType<T> source,
                         ContentType<V> target,
                         T data)

Transforms data from one content type to another.

Type Parameters:

T - The source type representation class.

V - The target type representation class.

Parameters:

source - The source type

target - The target type

data - The data to be converted.

Returns: