public class DataQuery extends Object
构造器和说明 |
---|
DataQuery(AsyncClient asyncClient,
String tableName) |
限定符和类型 | 方法和说明 |
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Filter |
getFilter()
获取数据查询的过滤条件
|
int |
getLimit()
获取查询时单次请求返回的行数
|
List<String> |
getSelectColumn() |
TimeRange |
getTimeRange() |
long |
getTimestamp() |
protected PointIterator |
getTimestream(TimestreamIdentifier identifier) |
boolean |
isDescTimestamp() |
protected void |
setColumnToGet(String... columns) |
protected void |
setFilter(Filter filter)
数据查询的过滤条件
|
protected void |
setLimit(int limit)
设置查询时单次请求返回的行数
|
protected void |
setOrderByTimestampDesc()
设置按照数据的时间戳进行逆序排序
|
protected void |
setTimeRange(TimeRange timeRange) |
protected void |
setTimestamp(long timestamp,
TimeUnit unit) |
public DataQuery(AsyncClient asyncClient, String tableName)
protected void setColumnToGet(String... columns)
protected void setTimeRange(TimeRange timeRange)
protected void setTimestamp(long timestamp, TimeUnit unit)
protected PointIterator getTimestream(TimestreamIdentifier identifier)
public TimeRange getTimeRange()
public long getTimestamp()
protected void setOrderByTimestampDesc()
public boolean isDescTimestamp()
protected void setFilter(Filter filter)
filter
- 数据查询过滤条件public Filter getFilter()
protected void setLimit(int limit)
limit
- public int getLimit()
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