Package io.smallrye.reactive.messaging

Class Messages.MessageChainBuilder

java.lang.Object

io.smallrye.reactive.messaging.Messages.MessageChainBuilder

Enclosing class:

Messages

public static class Messages.MessageChainBuilder
extends Object

The message chain builder allows chaining message and configure metadata propagation. By default, all the metadata from the given message are copied into the chained messages.

Method Summary

Modifier and Type	Method	Description
List<Message<?>>	with(Message<?>... messages)	Passed the chained messages.
Messages.MessageChainBuilder	withMetadata(Class<?>... mc)	Copy the given metadata of the given classes from the initial message to the chained message, if the initial message does not include a metadata object of the given class.
Messages.MessageChainBuilder	withoutMetadata()	Do not copy any metadata from the initial message to the chained message.
Messages.MessageChainBuilder	withoutMetadata(Class<?>... mc)	Do not the given metadata of the given classes from the initial message to the chained message, if the initial message does not include a metadata object of the given class.

Methods inherited from class java.lang.Object

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

Method Details

withoutMetadata

@CheckReturnValue
public Messages.MessageChainBuilder withoutMetadata()

Do not copy any metadata from the initial message to the chained message.

Returns:

the current Messages.MessageChainBuilder

withMetadata

@CheckReturnValue
public Messages.MessageChainBuilder withMetadata(Class<?>... mc)

Copy the given metadata of the given classes from the initial message to the chained message, if the initial message does not include a metadata object of the given class. In general, this method must be used after withoutMetadata().

Returns:

the current Messages.MessageChainBuilder

withoutMetadata

@CheckReturnValue
public Messages.MessageChainBuilder withoutMetadata(Class<?>... mc)

Do not the given metadata of the given classes from the initial message to the chained message, if the initial message does not include a metadata object of the given class.

Returns:

the current Messages.MessageChainBuilder

with

public List<Message<?>> with(Message<?>... messages)

Passed the chained messages. The messages are not modified, but should not be used afterward, and should be replaced by the messages contained in the returned list. This method preserve the order. So, the first message corresponds to the first message in the returned list. The message from the returned list have the necessary logic to chain the ack/nack signals and the copied metadata.

Parameters:

messages - the chained messages, must not be empty, must not be null, must not contain null

Returns:

the list of modified messages