org.axonframework.commandhandling.distributed

Interface CommandMessageFilter

All Superinterfaces:

Serializable

All Known Implementing Classes:

AcceptAll, AndCommandMessageFilter, CommandNameFilter, DenyAll, DenyCommandNameFilter, NegateCommandMessageFilter, OrCommandMessageFilter

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface CommandMessageFilter
extends Serializable

Interface describing a filter that can be applied to commands to describe the type of commands supported by a node in a cluster.

Since:

4.0

Author:

Allard Buijze

Method Summary

Modifier and Type	Method and Description
default CommandMessageFilter	and(CommandMessageFilter other) Returns a filter that matches when both this instance and the given other match.
boolean	matches(CommandMessage<?> commandMessage) Indicates whether the given commandMessage matches this filter.
default CommandMessageFilter	negate() Returns a filter that matches when this instance doesn't, and vice versa.
default CommandMessageFilter	or(CommandMessageFilter other) Returns a filter that matches when either this instance or the given other matches.

Method Detail

matches

boolean matches(@Nonnull
                CommandMessage<?> commandMessage)

Indicates whether the given commandMessage matches this filter.

Parameters:

commandMessage - the message to match

Returns:

true if the command matches, otherwise false

and

default CommandMessageFilter and(@Nonnull
                                 CommandMessageFilter other)

Returns a filter that matches when both this instance and the given other match.

Parameters:

other - the other filter to match against

Returns:

a filter that matches when both this instance and the other match

negate

default CommandMessageFilter negate()

Returns a filter that matches when this instance doesn't, and vice versa.

Returns:

a filter that negates the result of this instance

or

default CommandMessageFilter or(@Nonnull
                                CommandMessageFilter other)

Returns a filter that matches when either this instance or the given other matches.

Parameters:

other - the other filter to match against

Returns:

a filter that matches when either this instance or the other matches