kalix.scalasdk.action.MessageEnvelope.scala Maven / Gradle / Ivy
/*
* Copyright 2021 Lightbend Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 kalix.scalasdk.action
import kalix.scalasdk.Metadata
import kalix.scalasdk.impl.action.MessageEnvelopeImpl
object MessageEnvelope {
/**
* Create a message.
*
* @param payload
* The payload of the message.
* @return
* The message.
*/
def apply[T](payload: T): MessageEnvelope[T] = new MessageEnvelopeImpl[T](payload, Metadata.empty)
/**
* Create a message.
*
* @param payload
* The payload of the message.
* @param metadata
* The metadata associated with the message.
* @return
* The message.
*/
def apply[T](payload: T, metadata: Metadata): MessageEnvelope[T] = new MessageEnvelopeImpl[T](payload, metadata)
}
trait MessageEnvelope[T] {
/**
* The metadata associated with the message.
*
* @return
* The metadata.
*/
def metadata: Metadata
/**
* The payload of the message.
*
* @return
* The payload.
*/
def payload: T
}