/*
* Copyright 2010-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws.mobileconnectors.lambdainvoker;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotation that can be used to declare a method to be proxied by Lambda
* service.
*
* <pre>
* <code>
* public interface MyEchoFunction {
* {@literal @}LambdaFunction(functionName = "echo", invocationType = "RequestResponse")
* String echo(String str);
* }
* </code>
* </pre>
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface LambdaFunction {
/**
* The name of the function to invoke for this annotated method. If not
* explicitly assigned, we use the name of the interface method.
*/
String functionName() default "";
/**
* The type of invocation to use (one of 'RequestResponse', 'Event', or
* 'DryRun'). If not explicitly specified, we use 'RequestResponse' unless
* the method's return type is void, in which case we use 'Event'.
*/
String invocationType() default "RequestResponse";
/**
* The type of log to request from the service, either 'None' as default or
* 'Tail'. If set to other than 'None', the invocation type will be
* 'RequestResponse' regardless of any explicit setting.
*/
String logType() default "None";
/**
* The version or alias name of the function to invoke for this annotated
* method. If you specify function version, the API uses qualified function
* ARN to invoke a specific Lambda function. If you specify alias name, the
* API uses the alias ARN to invoke the Lambda function version to which the
* alias points. If the qualifier isn't specified, then the API invokes the
* Lambda function with unqualified function ARN which results in invocation
* of the $LATEST version.
*/
String qualifier() default "";
}