本文整理汇总了Java中com.amazonaws.services.dynamodbv2.model.BatchWriteItemRequest.setRequestItems方法的典型用法代码示例。如果您正苦于以下问题：Java BatchWriteItemRequest.setRequestItems方法的具体用法？Java BatchWriteItemRequest.setRequestItems怎么用？Java BatchWriteItemRequest.setRequestItems使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.amazonaws.services.dynamodbv2.model.BatchWriteItemRequest的用法示例。
在下文中一共展示了BatchWriteItemRequest.setRequestItems方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: runWithBackoff
import com.amazonaws.services.dynamodbv2.model.BatchWriteItemRequest; //导入方法依赖的package包/类
/**
* Writes to DynamoDBTable using an exponential backoff. If the
* batchWriteItem returns unprocessed items then it will exponentially
* backoff and retry the unprocessed items.
*/
public List<ConsumedCapacity> runWithBackoff(BatchWriteItemRequest req) {
BatchWriteItemResult writeItemResult = null;
List<ConsumedCapacity> consumedCapacities = new LinkedList<ConsumedCapacity>();
Map<String, List<WriteRequest>> unprocessedItems = null;
boolean interrupted = false;
try {
do {
writeItemResult = client.batchWriteItem(req);
unprocessedItems = writeItemResult.getUnprocessedItems();
consumedCapacities
.addAll(writeItemResult.getConsumedCapacity());
if (unprocessedItems != null) {
req.setRequestItems(unprocessedItems);
try {
Thread.sleep(exponentialBackoffTime);
} catch (InterruptedException ie) {
interrupted = true;
} finally {
exponentialBackoffTime *= 2;
if (exponentialBackoffTime > BootstrapConstants.MAX_EXPONENTIAL_BACKOFF_TIME) {
exponentialBackoffTime = BootstrapConstants.MAX_EXPONENTIAL_BACKOFF_TIME;
}
}
}
} while (unprocessedItems != null && unprocessedItems.get(tableName) != null);
return consumedCapacities;
} finally {
if (interrupted) {
Thread.currentThread().interrupt();
}
}
}
示例2: batchWritePoints
import com.amazonaws.services.dynamodbv2.model.BatchWriteItemRequest; //导入方法依赖的package包/类
public BatchWritePointResult batchWritePoints(List<PutPointRequest> putPointRequests) {
BatchWriteItemRequest batchItemRequest = new BatchWriteItemRequest();
List<WriteRequest> writeRequests = new ArrayList<WriteRequest>();
for (PutPointRequest putPointRequest : putPointRequests) {
long geohash = S2Manager.generateGeohash(putPointRequest.getGeoPoint());
long hashKey = S2Manager.generateHashKey(geohash, config.getHashKeyLength());
String geoJson = GeoJsonMapper.stringFromGeoObject(putPointRequest.getGeoPoint());
PutRequest putRequest = putPointRequest.getPutRequest();
AttributeValue hashKeyValue = new AttributeValue().withN(String.valueOf(hashKey));
putRequest.getItem().put(config.getHashKeyAttributeName(), hashKeyValue);
putRequest.getItem().put(config.getRangeKeyAttributeName(), putPointRequest.getRangeKeyValue());
AttributeValue geohashValue = new AttributeValue().withN(Long.toString(geohash));
putRequest.getItem().put(config.getGeohashAttributeName(), geohashValue);
AttributeValue geoJsonValue = new AttributeValue().withS(geoJson);
putRequest.getItem().put(config.getGeoJsonAttributeName(), geoJsonValue);
WriteRequest writeRequest = new WriteRequest(putRequest);
writeRequests.add(writeRequest);
}
Map<String, List<WriteRequest>> requestItems = new HashMap<String, List<WriteRequest>>();
requestItems.put(config.getTableName(), writeRequests);
batchItemRequest.setRequestItems(requestItems);
BatchWriteItemResult batchWriteItemResult = config.getDynamoDBClient().batchWriteItem(batchItemRequest);
BatchWritePointResult batchWritePointResult = new BatchWritePointResult(batchWriteItemResult);
return batchWritePointResult;
}