net.morimekta.providence.storage

Class InMemorySetStore<K,M>

java.lang.Object

net.morimekta.providence.storage.InMemorySetStore<K,M>

All Implemented Interfaces:

ReadOnlyStore<K,M>, ReadWriteSetStore<K,M>

Direct Known Subclasses:

InMemoryMessageSetStore

public class InMemorySetStore<K,M>
extends Object
implements ReadWriteSetStore<K,M>

Simple in-memory set storage of providence messages. Uses a local hash map for storing the instances. The store is thread safe through using re-entrant read-write mutex handling, so reading can happen in parallel.

Constructor Summary

Constructors

Constructor and Description
InMemorySetStore(Function<M,K> messageToKey)

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(K key)
Map<K,M>	getAll(Collection<K> keys) Look up a set of keys from the storage.
Collection<K>	keys() Get a collection of all the keys in the store.
void	putAll(Collection<M> values)
void	removeAll(Collection<K> keys) Remove the values for the given keys.
int	size()

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.morimekta.providence.storage.ReadWriteSetStore

put, remove

Methods inherited from interface net.morimekta.providence.storage.ReadOnlyStore

get

Constructor Detail

InMemorySetStore

public InMemorySetStore(Function<M,K> messageToKey)

Method Detail

getAll

@Nonnull
public Map<K,M> getAll(@Nonnull
                                Collection<K> keys)

Description copied from interface: ReadOnlyStore

Look up a set of keys from the storage.

Specified by:

getAll in interface ReadOnlyStore<K,M>

Parameters:

keys - The keys to look up.

Returns:

Map of all the found key value pairs. Values not found should not have an entry in the result map (no key -> null mapping).

containsKey

public boolean containsKey(@Nonnull
                           K key)

Specified by:

containsKey in interface ReadOnlyStore<K,M>

Parameters:

key - The key to look up.

Returns:

True if the key was contained in the map.

keys

@Nonnull
public Collection<K> keys()

Description copied from interface: ReadOnlyStore

Get a collection of all the keys in the store.

Specified by:

keys in interface ReadOnlyStore<K,M>

Returns:

Key collection.

size

public int size()

Specified by:

size in interface ReadOnlyStore<K,M>

Returns:

Get the total number of entries in the store, same as the number of unique keys.

putAll

public void putAll(@Nonnull
                   Collection<M> values)

Specified by:

putAll in interface ReadWriteSetStore<K,M>

Parameters:

values - Put all key value pairs form this map into the storage.

removeAll

public void removeAll(Collection<K> keys)

Description copied from interface: ReadWriteSetStore

Remove the values for the given keys.

Specified by:

removeAll in interface ReadWriteSetStore<K,M>

Parameters:

keys - Map of removed key value pairs.