com.alicloud.openservices.tablestore.model

类 TimeseriesTableOptions

java.lang.Object

com.alicloud.openservices.tablestore.model.TimeseriesTableOptions

所有已实现的接口:

Jsonizable

public class TimeseriesTableOptions
extends Object
implements Jsonizable

Configuration options for the time-series table, currently only used for configuring TTL.

TTL: Abbreviation of TimeToLive. TableStore supports automatic data expiration, and TimeToLive refers to the data's survival time.

The server determines whether a specific version of each column has expired based on the current time, the version number of each column, and the TTL setting of the table. Data that has expired will be automatically cleaned up.

构造器概要

构造器

构造器和说明
TimeseriesTableOptions() Constructs a TableOptions object.
TimeseriesTableOptions(int timeToLive) Constructs a TableOptions object.

方法概要

限定符和类型	方法和说明
int	getTimeToLive() Get the TTL time, in seconds.
boolean	hasSetTimeToLive() Query whether setTimeToLive(int) has been called to set TTL.
String	jsonize()
void	jsonize(StringBuilder sb, String newline)
protected boolean	jsonizeFields(StringBuilder sb, boolean firstItem)
void	setTimeToLive(int timeToLive) Set the TTL for table data, in seconds.
String	toString() Get the maximum number of versions.

从类继承的方法 java.lang.Object

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

构造器详细资料

TimeseriesTableOptions

public TimeseriesTableOptions()

Constructs a TableOptions object.

TimeseriesTableOptions

public TimeseriesTableOptions(int timeToLive)

Constructs a TableOptions object.

参数:

timeToLive - TTL time

方法详细资料

getTimeToLive

public int getTimeToLive()

Get the TTL time, in seconds.

返回:

TTL time

抛出:

IllegalStateException - if this parameter is not configured

setTimeToLive

public void setTimeToLive(int timeToLive)

Set the TTL for table data, in seconds.

参数:

timeToLive - TTL time, in seconds

hasSetTimeToLive

public boolean hasSetTimeToLive()

Query whether setTimeToLive(int) has been called to set TTL.

返回:

Whether TTL has been set.

toString

public String toString()

Get the maximum number of versions.

覆盖:

toString 在类中 Object

返回:

the maximum number of versions

抛出:

IllegalStateException - if this parameter is not configured

jsonize

public String jsonize()

指定者:

jsonize 在接口中 Jsonizable

jsonize

public void jsonize(StringBuilder sb,
                    String newline)

指定者:

jsonize 在接口中 Jsonizable

jsonizeFields

protected boolean jsonizeFields(StringBuilder sb,
                                boolean firstItem)