Package net.morimekta.providence.storage

Class InMemorySetStore<K,​M>

  • All Implemented Interfaces:
    ReadOnlyStore<K,​M>, ReadWriteSetStore<K,​M>
    Direct Known Subclasses:
    InMemoryMessageSetStore
    public class InMemorySetStore<K,​M>
extends java.lang.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 Description
      InMemorySetStore​(java.util.function.Function<M,​K> messageToKey)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean containsKey​(K key)  
      java.util.Map<K,​M> getAll​(java.util.Collection<K> keys)
      Look up a set of keys from the storage.
      java.util.Collection<K> keys()
      Get a collection of all the keys in the store.
      void putAll​(java.util.Collection<M> values)  
      void removeAll​(java.util.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.ReadOnlyStore

        get

    • Constructor Detail

      • InMemorySetStore

        public InMemorySetStore​(java.util.function.Function<M,​K> messageToKey)

    • Method Detail

      • getAll

        @Nonnull
public java.util.Map<K,​M> getAll​(@Nonnull
                                       java.util.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 java.util.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
                   java.util.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​(java.util.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.