public AsyncBatchReadListExecutor
(
AsyncCluster cluster,
BatchPolicy policy,
BatchListListener listener,
List <BatchRead> records
)
{
this.listener = listener;
this.records = records;
// Create commands.
List <BatchNode> batchNodes = BatchNode.GenerateList(cluster, policy, records);
AsyncMultiCommand[] tasks = new AsyncMultiCommand[batchNodes.Count];
int count = 0;
foreach (BatchNode batchNode in batchNodes)
{
if (!batchNode.node.hasBatchIndex)
{
throw new AerospikeException(ResultCode.PARAMETER_ERROR, "Requested command requires a server that supports new batch index protocol.");
}
tasks[count++] = new AsyncBatchReadListCommand(this, cluster, batchNode, policy, records);
}
// Dispatch commands to nodes.
Execute(tasks, policy.maxConcurrentThreads);
}
public AsyncBatchReadListExecutor
(
AsyncCluster cluster,
BatchPolicy policy,
BatchListListener listener,
List <BatchRead> records
) : base(cluster)
{
this.listener = listener;
this.records = records;
// Create commands.
List <BatchNode> batchNodes = BatchNode.GenerateList(cluster, policy, records);
AsyncMultiCommand[] tasks = new AsyncMultiCommand[batchNodes.Count];
int count = 0;
foreach (BatchNode batchNode in batchNodes)
{
tasks[count++] = new AsyncBatchReadListCommand(this, cluster, batchNode, policy, records);
}
// Dispatch commands to nodes.
Execute(tasks, 0);
}
public AsyncBatchReadListExecutor(
AsyncCluster cluster,
BatchPolicy policy,
BatchListListener listener,
List<BatchRead> records
)
{
this.listener = listener;
this.records = records;
// Create commands.
List<BatchNode> batchNodes = BatchNode.GenerateList(cluster, policy, records);
AsyncMultiCommand[] tasks = new AsyncMultiCommand[batchNodes.Count];
int count = 0;
foreach (BatchNode batchNode in batchNodes)
{
if (!batchNode.node.hasBatchIndex)
{
throw new AerospikeException(ResultCode.PARAMETER_ERROR, "Requested command requires a server that supports new batch index protocol.");
}
tasks[count++] = new AsyncBatchReadListCommand(this, cluster, batchNode, policy, records);
}
// Dispatch commands to nodes.
Execute(tasks, policy.maxConcurrentThreads);
}
/// <summary>
/// Asynchronously read multiple records for specified batch keys in one batch call.
/// This method allows different namespaces/bins to be requested for each key in the batch.
/// The returned records are located in the same list.
/// If the BatchRecord key field is not found, the corresponding record field will be null.
/// <para>
/// This method schedules the get command with a channel selector and returns.
/// Another thread will process the command and send the results to the listener in a single call.
/// This method requires Aerospike Server version >= 3.6.0.
/// </para>
/// </summary>
/// <param name="policy">batch configuration parameters, pass in null for defaults</param>
/// <param name="listener">where to send results</param>
/// <param name="records">list of unique record identifiers and the bins to retrieve.</param>
/// <exception cref="AerospikeException">if read fails</exception>
public void Get(BatchPolicy policy, BatchListListener listener, List<BatchRead> records)
{
if (records.Count == 0)
{
listener.OnSuccess(records);
return;
}
if (policy == null)
{
policy = batchPolicyDefault;
}
new AsyncBatchReadListExecutor(cluster, policy, listener, records);
}