Package com.amazonaws.services.dynamodbv2.model

Examples of com.amazonaws.services.dynamodbv2.model.ScanResult

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    public <T> ScanResultPage<T> scanPage(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        ScanResultPage<T> result = new ScanResultPage<T>();
        List<AttributeTransformer.Parameters<T>> parameters =
            toParameters(scanResult.getItems(), clazz, config);

        result.setResults(marshalIntoObjects(parameters));
        result.setLastEvaluatedKey(scanResult.getLastEvaluatedKey());

        return result;
    }
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        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);
        scanRequest.setSelect(Select.COUNT);

        // Count scans can also be truncated for large datasets
        int count = 0;
        ScanResult scanResult = null;
        do {
            scanResult = db.scan(applyUserAgent(scanRequest));
            count += scanResult.getCount();
            scanRequest.setExclusiveStartKey(scanResult.getLastEvaluatedKey());
        } while (scanResult.getLastEvaluatedKey() != null);

        return count;
    }
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    public <T> PaginatedScanList<T> scan(Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) {
        config = mergeConfig(config);

        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);

        ScanResult scanResult = db.scan(applyUserAgent(scanRequest));
        return new PaginatedScanList<T>(this, clazz, db, scanRequest, scanResult);
    }
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        ScanRequest scanRequest = createScanRequestFromExpression(clazz, scanExpression, config);
        scanRequest.setSelect(Select.COUNT);

        // Count scans can also be truncated for large datasets
        int count = 0;
        ScanResult scanResult = null;
        do {
            scanResult = db.scan(applyUserAgent(scanRequest));
            count += scanResult.getCount();
            scanRequest.setExclusiveStartKey(scanResult.getLastEvaluatedKey());
        } while (scanResult.getLastEvaluatedKey() != null);

        return count;
    }
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        if (limit != null) {
            scanRequest.setLimit(limit);
        }

        try {
            ScanResult scanResult = dynamoDBClient.scan(scanRequest);
            List<T> result = new ArrayList<T>();

            while (scanResult != null) {
                for (Map<String, AttributeValue> item : scanResult.getItems()) {
                    if (LOG.isDebugEnabled()) {
                        LOG.debug("Got item " + item.toString() + " from DynamoDB.");
                    }

                    result.add(serializer.fromDynamoRecord(item));
                }

                Map<String, AttributeValue> lastEvaluatedKey = scanResult.getLastEvaluatedKey();
                if (lastEvaluatedKey == null) {
                    // Signify that we're done.
                    scanResult = null;
                    if (LOG.isDebugEnabled()) {
                        LOG.debug("lastEvaluatedKey was null - scan finished.");
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        request.setLimit(InternalUtils.minimum(
                spec.getMaxResultSize(),
                spec.getMaxPageSize()));

        ScanResult result = client.scan(request);
        ScanOutcome outcome = new ScanOutcome(result);
        setLastLowLevelResult(outcome);
        return new ScanPage(client, spec, request, 0, outcome);
    }
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        return spec.getMaxResultSize();
    }

    protected void setLastLowLevelResult(ScanOutcome lowLevelResult) {
        super.setLastLowLevelResult(lowLevelResult);
        ScanResult result = lowLevelResult.getScanResult();
        accumulateStats(result.getConsumedCapacity(), result.getCount(),
                result.getScannedCount());
    }
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        this.spec = spec;
        this.request = request;
        this.index = index;

        final Integer max = spec.getMaxResultSize();
        final ScanResult result = outcome.getScanResult();
        final List<?> ilist = result.getItems();
        final int size = ilist == null ? 0 : ilist.size();
        if (max != null && (index + size) > max) {
            this.lastEvaluatedKey = null;
        } else {
            this.lastEvaluatedKey = result.getLastEvaluatedKey();
        }
    }
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                throw new NoSuchElementException("No more pages");
            request.setLimit(nextLimit);
        }
        request.setExclusiveStartKey(lastEvaluatedKey);
        // fire off request to the server side
        ScanResult result = client.scan(request);
        final int nextIndex = index + this.size();
        return new ScanPage(client, spec, request, nextIndex,
                new ScanOutcome(result));
    }
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      if (!StringUtils.isBlank(pager.getLastKey())) {
        scanRequest.setExclusiveStartKey(Collections.singletonMap(Config._KEY,
            new AttributeValue(pager.getLastKey())));
      }

      ScanResult result = client().scan(scanRequest);
      logger.debug("readPage() CC: {}", result.getConsumedCapacity());

      for (Map<String, AttributeValue> item : result.getItems()) {
        P obj = fromRow(item);
        if (obj != null) {
          results.add(obj);
        }
      }
      if (result.getCount() > 0 && results.isEmpty() && result.getLastEvaluatedKey() != null) {
        pager.setLastKey(result.getLastEvaluatedKey().get(Config._KEY).getS());
        return readPage(appid, pager);
      }
    } catch (Exception e) {
      logger.error(null, e);
    }
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Related Classes of com.amazonaws.services.dynamodbv2.model.ScanResult

  • AmazonDynamoDBSample
  • com.amazonaws.auth.DefaultAWSCredentialsProviderChain
  • com.amazonaws.ClientConfiguration
  • com.amazonaws.handlers.HandlerChainFactory
  • com.amazonaws.http.ExecutionContext
  • com.amazonaws.http.JsonErrorResponseHandler
  • com.amazonaws.internal.StaticCredentialsProvider
  • com.amazonaws.metrics.internal.cloudwatch.provider.transform.DynamoDBRequestMetricTransformer
  • com.amazonaws.services.dynamodbv2.datamodeling.ArgumentMarshaller.StringAttributeMarshaller
  • com.amazonaws.services.dynamodbv2.datamodeling.ArgumentMarshaller.StringSetAttributeMarshaller
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