QueryStage (GCloud Java bigquery 0.2.2 API)

java.lang.Object
- com.google.cloud.bigquery.QueryStage

All Implemented Interfaces:

Serializable
```
public class QueryStage
extends Object
implements Serializable
```
BigQuery provides diagnostic information about a completed query's execution plan (or query plan for short). The query plan describes a query as a series of stages, with each stage comprising a number of steps that read from data sources, perform a series of transformations on the input, and emit an output to a future stage (or the final result). This class contains information on a query stage.

See Also:
Query Plan, Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class QueryStage.QueryStep
Each query stage is made of a number of steps.

Nested Classes
Modifier and Type	Class and Description
`static class`	`QueryStage.QueryStep` Each query stage is made of a number of steps.

Method Summary

Methods
Modifier and Type	Method and Description
`double`	`computeRatioAvg()` Returns the time the average worker spent CPU-bound, divided by the longest time spent by any worker in any segment.
`double`	`computeRatioMax()` Returns the time the slowest worker spent CPU-bound, divided by the longest time spent by any worker in any segment.
`boolean`	`equals(Object obj)`
`long`	`generatedId()` Returns a unique, server-generated ID for the stage within its plan.
`int`	`hashCode()`
`String`	`name()` Returns a human-readable name for the stage.
`double`	`readRatioAvg()` Returns the time the average worker spent reading input data, divided by the longest time spent by any worker in any segment.
`double`	`readRatioMax()` Returns the time the slowest worker spent reading input data, divided by the longest time spent by any worker in any segment.
`long`	`recordsRead()` Returns the number of rows (top-level records) read by the stage.
`long`	`recordsWritten()` Returns the number of rows (top-level records) written by the stage.
`List<QueryStage.QueryStep>`	`steps()` Returns the list of steps within the stage in dependency order (approximately chronological).
`String`	`toString()`
`double`	`waitRatioAvg()` Returns the time the average worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment.
`double`	`waitRatioMax()` Returns the time the slowest worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment.
`double`	`writeRatioAvg()` Returns the time the average worker spent writing output data, divided by the longest time spent by any worker in any segment.
`double`	`writeRatioMax()` Returns the time the slowest worker spent writing output data, divided by the longest time spent by any worker in any segment.

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

- Method Detail
  - computeRatioAvg
```
public double computeRatioAvg()
```
    Returns the time the average worker spent CPU-bound, divided by the longest time spent by any worker in any segment.
  - computeRatioMax
```
public double computeRatioMax()
```
    Returns the time the slowest worker spent CPU-bound, divided by the longest time spent by any worker in any segment.
  - generatedId
```
public long generatedId()
```
    Returns a unique, server-generated ID for the stage within its plan.
  - name
```
public String name()
```
    Returns a human-readable name for the stage.
  - readRatioAvg
```
public double readRatioAvg()
```
    Returns the time the average worker spent reading input data, divided by the longest time spent by any worker in any segment.
  - readRatioMax
```
public double readRatioMax()
```
    Returns the time the slowest worker spent reading input data, divided by the longest time spent by any worker in any segment.
  - recordsRead
```
public long recordsRead()
```
    Returns the number of rows (top-level records) read by the stage.
  - recordsWritten
```
public long recordsWritten()
```
    Returns the number of rows (top-level records) written by the stage.
  - steps
```
public List<QueryStage.QueryStep> steps()
```
    Returns the list of steps within the stage in dependency order (approximately chronological).
  - waitRatioAvg
```
public double waitRatioAvg()
```
    Returns the time the average worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment.
  - waitRatioMax
```
public double waitRatioMax()
```
    Returns the time the slowest worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment.
  - writeRatioAvg
```
public double writeRatioAvg()
```
    Returns the time the average worker spent writing output data, divided by the longest time spent by any worker in any segment.
  - writeRatioMax
```
public double writeRatioMax()
```
    Returns the time the slowest worker spent writing output data, divided by the longest time spent by any worker in any segment.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - hashCode
```
public final int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public final boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object

Class QueryStage

Nested Class Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

computeRatioAvg

computeRatioMax

generatedId

name

readRatioAvg

readRatioMax

recordsRead

recordsWritten

steps

waitRatioAvg

waitRatioMax

writeRatioAvg

writeRatioMax

toString

hashCode

equals