com.alicloud.openservices.tablestore.timestream.model.query

类 DataGetter

java.lang.Object

com.alicloud.openservices.tablestore.timestream.model.query.DataQuery

com.alicloud.openservices.tablestore.timestream.model.query.DataGetter

public class DataGetter
extends DataQuery

Data query class for a single timeline

构造器概要

构造器

构造器和说明
DataGetter(AsyncClient asyncClient, String tableName, TimestreamIdentifier identifier)

方法概要

限定符和类型	方法和说明
DataGetter	descTimestamp() Sort in reverse order by the timestamp of the data point, default is ascending.
PointIterator	fetchAll() Query
DataGetter	filter(Filter filter) Set the filter condition for the data row, only supports filtering the fields of the data row
DataGetter	limit(int limit) Set the number of rows returned in a single request during the query
DataGetter	select(String... fields) Set the list of fields to be read
DataGetter	timeRange(TimeRange timeRange) The timestamp range of the data to be read
DataGetter	timestamp(long timestamp, TimeUnit unit) The timestamp of the data point to read

从类继承的方法 com.alicloud.openservices.tablestore.timestream.model.query.DataQuery

getFilter, getLimit, getSelectColumn, getTimeRange, getTimestamp, getTimestream, isDescTimestamp, setColumnToGet, setFilter, setLimit, setOrderByTimestampDesc, setTimeRange, setTimestamp

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

DataGetter

public DataGetter(AsyncClient asyncClient,
                  String tableName,
                  TimestreamIdentifier identifier)

方法详细资料

filter

public DataGetter filter(Filter filter)

Set the filter condition for the data row, only supports filtering the fields of the data row

参数:

filter -

返回:

select

public DataGetter select(String... fields)

Set the list of fields to be read

参数:

fields - The data fields to be queried

返回:

timeRange

public DataGetter timeRange(TimeRange timeRange)

The timestamp range of the data to be read

参数:

timeRange - TimeRange, the time range of the data to be queried

返回:

timestamp

public DataGetter timestamp(long timestamp,
                            TimeUnit unit)

The timestamp of the data point to read

参数:

timestamp - The timestamp of the data to query

unit - The unit of the timestamp

返回:

descTimestamp

public DataGetter descTimestamp()

Sort in reverse order by the timestamp of the data point, default is ascending.

返回:

limit

public DataGetter limit(int limit)

Set the number of rows returned in a single request during the query

参数:

limit -

fetchAll

public PointIterator fetchAll()

Query

返回: