Class ColumnStatsStep

java.lang.Object

com.kingsrook.qqq.backend.core.processes.implementations.columnstats.ColumnStatsStep

All Implemented Interfaces:

BackendStep

public class ColumnStatsStep
extends Object
implements BackendStep

This is a single-step process used to provide Column Statistics. These include counts per-value for a field, plus things like total count, min, max, avg, based on the field type.

Constructor Summary

Constructors

Constructor	Description
ColumnStatsStep()

Method Summary

Modifier and Type	Method	Description
static QProcessMetaData	getProcessMetaData()
void	run(RunBackendStepInput runBackendStepInput, RunBackendStepOutput runBackendStepOutput)	Execute the backend step - using the request as input, and the result as output.

Methods inherited from class java.lang.Object

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

Constructor Details

ColumnStatsStep

public ColumnStatsStep()

Method Details

getProcessMetaData

public static QProcessMetaData getProcessMetaData()

run

public void run(RunBackendStepInput runBackendStepInput,
 RunBackendStepOutput runBackendStepOutput)
         throws QException

Description copied from interface: BackendStep

Execute the backend step - using the request as input, and the result as output. TODO - think about - why take the Result object as a param, instead of return it? Is this way easier for inter-language operability maybe? Also - there's way too much "process-specific gunk" in the Request object - can we simplify it?

Specified by:

run in interface BackendStep

Throws:

QException