/// <summary>
/// Adds an entry to the map.
/// Note that the new <paramref name="value"/> will be merged with existing values
/// on other nodes and the outcome depends on what <see cref="IReplicatedData"/>
/// type that is used.
///
/// Consider using <see cref="AddOrUpdate(Akka.Cluster.Cluster, TKey, TValue, Func{TValue, TValue})">AddOrUpdate</see> instead of <see cref="SetItem(UniqueAddress,TKey,TValue)"/> if you want modify
/// existing entry.
///
/// <see cref="ArgumentException"/> is thrown if you try to replace an existing <see cref="ORSet{T}"/>
/// value, because important history can be lost when replacing the `ORSet` and
/// undesired effects of merging will occur. Use <see cref="ORMultiValueDictionary{TKey,TValue}"/> or <see cref="AddOrUpdate(Akka.Cluster.Cluster, TKey, TValue, Func{TValue, TValue})">AddOrUpdate</see> instead.
/// </summary>
public ORDictionary <TKey, TValue> SetItem(UniqueAddress node, TKey key, TValue value)
{
if (value is IORSet && ValueMap.ContainsKey(key))
{
throw new ArgumentException("ORDictionary.SetItems may not be used to replace an existing ORSet", nameof(value));
}
var newKeys = KeySet.ResetDelta().Add(node, key);
var delta = new PutDeltaOperation(newKeys.Delta, key, value);
// put forcibly damages history, so we propagate full value that will overwrite previous values
return(new ORDictionary <TKey, TValue>(newKeys, ValueMap.SetItem(key, value), NewDelta(delta)));
}
public WriteAggregatorSpec(ITestOutputHelper output) : base(ConfigurationFactory.ParseString($@"
akka.actor.provider = ""Akka.Cluster.ClusterActorRefProvider, Akka.Cluster""
akka.remote.dot-netty.tcp.port = 0
akka.cluster.distributed-data.durable.lmdb {{
dir = ""target/WriteAggregatorSpec-{DateTime.UtcNow.Ticks}-ddata""
map-size = 10MiB
}}"), "WriteAggregatorSpec", output)
{
_nodes = ImmutableList.CreateRange(new[] { _nodeA, _nodeB, _nodeC, _nodeD });
var cluster = Akka.Cluster.Cluster.Get(Sys);
_fullState1 = ORSet <string> .Empty.Add(cluster, "a").Add(cluster, "b");
_fullState2 = _fullState1.ResetDelta().Add(cluster, "c");
_delta = new Delta(new DataEnvelope(_fullState2.Delta), 2L, 2L);
_writeAll = new WriteAll(Dilated(TimeSpan.FromSeconds(3)));
}
