org.apache.calcite.sql

Class SqlSampleSpec.SqlTableSampleSpec

java.lang.Object

org.apache.calcite.sql.SqlSampleSpec

org.apache.calcite.sql.SqlSampleSpec.SqlTableSampleSpec

Enclosing class:

SqlSampleSpec

public static class SqlSampleSpec.SqlTableSampleSpec
extends SqlSampleSpec

Sample specification.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlSampleSpec

SqlSampleSpec.SqlSubstitutionSampleSpec, SqlSampleSpec.SqlTableSampleSpec

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	isBernoulli
private boolean	isRepeatable
private int	repeatableSeed
private float	samplePercentage

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SqlTableSampleSpec(boolean isBernoulli, float samplePercentage)
private	SqlTableSampleSpec(boolean isBernoulli, float samplePercentage, int repeatableSeed)

Method Summary

Modifier and Type	Method and Description
int	getRepeatableSeed() Seed to produce repeatable samples.
float	getSamplePercentage() Returns sampling percentage.
boolean	isBernoulli() Indicates Bernoulli vs.
boolean	isRepeatable() Indicates whether repeatable seed should be used.
String	toString()

Methods inherited from class org.apache.calcite.sql.SqlSampleSpec

createNamed, createTableSample, createTableSample

Methods inherited from class java.lang.Object

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

Field Detail

isBernoulli

private final boolean isBernoulli

samplePercentage

private final float samplePercentage

isRepeatable

private final boolean isRepeatable

repeatableSeed

private final int repeatableSeed

Constructor Detail

SqlTableSampleSpec

private SqlTableSampleSpec(boolean isBernoulli,
                           float samplePercentage)

SqlTableSampleSpec

private SqlTableSampleSpec(boolean isBernoulli,
                           float samplePercentage,
                           int repeatableSeed)

Method Detail

isBernoulli

public boolean isBernoulli()

Indicates Bernoulli vs. System sampling.

getSamplePercentage

public float getSamplePercentage()

Returns sampling percentage. Range is 0.0 to 1.0, exclusive

isRepeatable

public boolean isRepeatable()

Indicates whether repeatable seed should be used.

getRepeatableSeed

public int getRepeatableSeed()

Seed to produce repeatable samples.

toString

public String toString()

Overrides:

toString in class Object