public List <T> Scan <T>(ScanRequest request, int limit)
{
var to = new List <T>();
if (request.Limit == default(int))
{
request.Limit = limit;
}
ScanResponse response = null;
do
{
if (response != null)
{
request.ExclusiveStartKey = response.LastEvaluatedKey;
}
response = Exec(() => DynamoDb.Scan(request));
var results = response.ConvertAll <T>();
foreach (var result in results)
{
to.Add(result);
if (to.Count >= limit)
{
break;
}
}
} while (!response.LastEvaluatedKey.IsEmpty() && to.Count < limit);
return(to);
}
public DynamoDbResult <T> ScanPage <T>(ScanExpression <T> request, int limit, Dictionary <string, AttributeValue> lastEvaluatedKey = null)
{
var result = new DynamoDbResult <T>();
request.Limit = limit;
ScanResponse response = null;
if (lastEvaluatedKey != null)
{
request.ExclusiveStartKey = lastEvaluatedKey;
}
response = Exec(() => DynamoDb.Scan(request));
var results = response.ConvertAll <T>();
result.Data = results;
result.LastEvaluatedKey = response.LastEvaluatedKey;
return(result);
}
public IEnumerable <T> Scan <T>(ScanRequest request, Func <ScanResponse, IEnumerable <T> > converter)
{
ScanResponse response = null;
do
{
if (response != null)
{
request.ExclusiveStartKey = response.LastEvaluatedKey;
}
response = Exec(() => DynamoDb.Scan(request));
var results = converter(response);
foreach (var result in results)
{
yield return(result);
}
} while (!response.LastEvaluatedKey.IsEmpty());
}