io.spine.server.delivery

Interface Page<M>

Type Parameters:

M - the type of the messages stored

@SPI
public interface Page<M>

A page of messages obtained from a sharded storage in a read operation.

Method Summary

Modifier and Type	Method and Description
com.google.common.collect.ImmutableList<M>	contents() Obtains the messages of this page.
java.util.Optional<Page<M>>	next() Obtains the next page.
int	size() Obtains the size of this page.

Method Detail

contents

com.google.common.collect.ImmutableList<M> contents()

Obtains the messages of this page.

Returns:

the list of page contents

size

int size()

Obtains the size of this page.

Returns:

non-negative number of items in this page

next

java.util.Optional<Page<M>> next()

Obtains the next page.

Returns:

the next page wrapped into Optional, or Optional.empty() if this page is the last one