Package software.amazon.lambda.powertools.parameters

Class BaseParamAspect

java.lang.Object

software.amazon.lambda.powertools.parameters.BaseParamAspect

public abstract class BaseParamAspect
extends Object

Provides a common base for all parameter aspects. This lets us group functionality that we need to reimplement in each aspect. This class should be extended for each additional parameter aspect.

Constructor Summary

Constructors

Constructor	Description
BaseParamAspect()

Method Summary

Modifier and Type	Method	Description
protected Object	getAndTransform(String key, Class<? extends Transformer> transformer, BaseProvider provider, org.aspectj.lang.reflect.FieldSignature fieldSignature)	Gets the parameter value from the provider and transforms it if necessary.

Methods inherited from class java.lang.Object

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

Constructor Details

BaseParamAspect

public BaseParamAspect()

Method Details

getAndTransform

protected Object getAndTransform(String key,
 Class<? extends Transformer> transformer,
 BaseProvider provider,
 org.aspectj.lang.reflect.FieldSignature fieldSignature)

Gets the parameter value from the provider and transforms it if necessary. This transformation is generic across all parameter providers.

Parameters:

key - The key of the parameter to get

transformer - The transformer to use to transform the parameter value

provider - A concrete instance of the parameter provider to retrieve the value from

fieldSignature - The signature of the field that the parameter is being injected into

Returns:

The value of the parameter, transformed if necessary