/// <summary>
/// Prepend string to an existing string.
/// </summary>
public override void RunExample(AerospikeClient client, Arguments args)
{
Key key = new Key(args.ns, args.set, "prependkey");
string binName = args.GetBinName("prependbin");
// Delete record if it already exists.
client.Delete(args.writePolicy, key);
Bin bin = new Bin(binName, "World");
console.Info("Initial prepend will create record. Initial value is " + bin.value + '.');
client.Prepend(args.writePolicy, key, bin);
bin = new Bin(binName, "Hello ");
console.Info("Prepend \"" + bin.value + "\" to existing record.");
client.Prepend(args.writePolicy, key, bin);
Record record = client.Get(args.policy, key, bin.name);
if (record == null)
{
throw new Exception(string.Format("Failed to get: namespace={0} set={1} key={2}",
key.ns, key.setName, key.userKey));
}
// The value received from the server is an unsigned byte stream.
// Convert to an integer before comparing with expected.
object received = record.GetValue(bin.name);
string expected = "Hello World";
if (received.Equals(expected))
{
console.Info("Prepend successful: namespace={0} set={1} key={2} bin={3} value={4}",
key.ns, key.setName, key.userKey, bin.name, received);
}
else
{
console.Error("Prepend mismatch: Expected {0}. Received {1}.", expected, received);
}
}
