de.otto.synapse.state

Class ChronicleMapStateRepository<V>

java.lang.Object

de.otto.synapse.state.ConcurrentMapStateRepository<V>

de.otto.synapse.state.ChronicleMapStateRepository<V>

All Implemented Interfaces:

StateRepository<V>, java.lang.AutoCloseable

public class ChronicleMapStateRepository<V>
extends ConcurrentMapStateRepository<V>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ChronicleMapStateRepository.Builder<V>

Method Summary

Modifier and Type	Method and Description
static <V> ChronicleMapStateRepository.Builder<V>	builder(java.lang.Class<V> clazz)
java.util.Optional<V>	get(java.lang.String key) Returns the optional value to which the specified key is mapped, or Optional.empty() if this repository contains no mapping for the key.
java.util.Optional<V>	put(java.lang.String key, V value) Associates the specified value with the specified key in this repository.
long	size() Returns the number of key-value mappings in this repository.

Methods inherited from class de.otto.synapse.state.ConcurrentMapStateRepository

clear, close, compute, keySet, remove

Methods inherited from class java.lang.Object

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

Method Detail

put

public java.util.Optional<V> put(java.lang.String key,
                                 V value)

Description copied from interface: StateRepository

Associates the specified value with the specified key in this repository. If the repository previously contained a mapping for the key, the old value is replaced by the specified value. (A repository m is said to contain a mapping for a key k if and only if m.get(k) would return a non-empty value.)

Specified by:

put in interface StateRepository<V>

Overrides:

put in class ConcurrentMapStateRepository<V>

Parameters:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

Returns:

the previous value associated with key, or Optional.empty() if there was no mapping for key.

get

public java.util.Optional<V> get(java.lang.String key)

Description copied from interface: StateRepository

Returns the optional value to which the specified key is mapped, or Optional.empty() if this repository contains no mapping for the key.

More formally, if this repository contains a mapping from a key k to a value v such that (key==null ? k==null : key.equals(k)), then this method returns Optional.of(v); otherwise it returns Optional.empty(). (There can be at most one such mapping.)

Specified by:

get in interface StateRepository<V>

Overrides:

get in class ConcurrentMapStateRepository<V>

Parameters:

key - the key whose associated value is to be returned

Returns:

the Optional containing the value to which the specified key is mapped, or Optional.empty() if this repository contains no mapping for the key

size

public long size()

Description copied from interface: StateRepository

Returns the number of key-value mappings in this repository. If the repository contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

Specified by:

size in interface StateRepository<V>

Overrides:

size in class ConcurrentMapStateRepository<V>

Returns:

the number of key-value mappings in this repository

builder

public static <V> ChronicleMapStateRepository.Builder<V> builder(java.lang.Class<V> clazz)