software.amazon.lambda.powertools.parameters.transform

Interface Transformer<T>

Type Parameters:

T - type of the target object that will be created with the transformer.

All Known Implementing Classes:

Base64Transformer, BasicTransformer, JsonTransformer

public interface Transformer<T>

Interface for parameter transformers. Implement it to create a new Transformer.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Class<Base64Transformer>	base64 Convenient access to Base64Transformer, to use in providers (
static java.lang.Class<JsonTransformer>	json Convenient access to JsonTransformer, to use in providers (

Method Summary

Modifier and Type	Method and Description
T	applyTransformation(java.lang.String value, java.lang.Class<T> targetClass) Apply a transformation on the input value (String)

Field Detail

json

static final java.lang.Class<JsonTransformer> json

Convenient access to JsonTransformer, to use in providers (

provider.withTransformation(json)

)

base64

static final java.lang.Class<Base64Transformer> base64

Convenient access to Base64Transformer, to use in providers (

provider.withTransformation(base64)

)

Method Detail

applyTransformation

T applyTransformation(java.lang.String value,
                      java.lang.Class<T> targetClass)
               throws TransformationException

Apply a transformation on the input value (String)

Parameters:

value - the parameter value to transform

targetClass - class of the target object

Returns:

a transformed parameter

Throws:

TransformationException - when a transformation error occurs