membership

type ChangeEvent struct {
	// Changes is a slice of changes that is related to this event
	Changes []MemberChange
}

type Member interface {
	// GetAddress returns the external address used by the rpc layer to
	// communicate to the member.
	//
	// Note: It is prefixed with Get for legacy reasons and can be removed after
	// a refactor of the swim.Member to free up the `Address` name.
	GetAddress() string

	// Label reads the label for a given key from the member. It also returns
	// wether or not the label was present on the member
	Label(key string) (value string, has bool)

	// Identity returns the logical identity the member takes within the
	// hashring, this is experimental and might move away from the membership to
	// the Hashring
	Identity() string
}

type MemberChange struct {
	// Before is the state of the member before the change, if the
	// member is a new member the before state is nil
	Before Member
	// After is the state of the member after the change, if the
	// member left the after state will be nil
	After Member
}