QueryIdGenerator (IoTDB Server 0.14.0-preview2 API)

java.lang.Object
- org.apache.iotdb.db.mpp.execution.QueryIdGenerator

public class QueryIdGenerator
extends java.lang.Object

Constructor Summary

Constructors
Constructor Description

QueryIdGenerator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`QueryId`	`createNextQueryId()`	Generate next queryId using the following format: `YYYYMMDD_hhmmss_index_dataNodeId`
`java.lang.String`	`getCoordinatorId()`
`protected long`	`nowInMillis()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - QueryIdGenerator
```
public QueryIdGenerator()
```
- Method Detail
  - getCoordinatorId
```
public java.lang.String getCoordinatorId()
```
  - createNextQueryId
```
public QueryId createNextQueryId()
```
    Generate next queryId using the following format: YYYYMMDD_hhmmss_index_dataNodeId
    index rolls at the start of every day or when it is close to reaching 99,999. dataNodeId is a unique id generated by config node when this data node is created.
  - nowInMillis
```
protected long nowInMillis()
```