MutableSample (Apache Calcite API)

java.lang.Object

org.apache.calcite.rel.mutable.MutableRel

org.apache.calcite.rel.mutable.MutableSample

public class MutableSample extends MutableRel

Mutable equivalent of Sample.

Field Summary

Fields

Modifier and Type

Field

Description

protected MutableRel

input

final RelOptSamplingParameters

params

Fields inherited from class org.apache.calcite.rel.mutable.MutableRel
cluster, ordinalInParent, PAIRWISE_STRING_EQUIVALENCE, parent, rowType, STRING_EQUIVALENCE, type
Method Summary

Modifier and Type

Method

Description

void

childrenAccept(MutableRelVisitor visitor)

MutableRel

clone()

StringBuilder

digest(StringBuilder buf)

boolean

equals(@Nullable Object obj)

MutableRel

getInput()

List<MutableRel>

getInputs()

int

hashCode()

static MutableSample

of(MutableRel input, RelOptSamplingParameters params)

Creates a MutableSample.

void

setInput(int ordinalInParent, MutableRel input)

Methods inherited from class org.apache.calcite.rel.mutable.MutableRel
deep, getParent, replaceInParent, toString

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

Field Details
- params
  
  public final RelOptSamplingParameters params
- input
  
  protected MutableRel input
Method Details
- of
  
  public static MutableSample of(MutableRel input, RelOptSamplingParameters params)
  
  Creates a MutableSample.
  
  Parameters:
  
  input - Input relational expression
  
  params - parameters necessary to produce a sample of a relation
- equals
  
  public boolean equals(@Nullable Object obj)
  
  Overrides:
  
  equals in class Object
- hashCode
  
  public int hashCode()
  
  Overrides:
  
  hashCode in class Object
- digest
  
  public StringBuilder digest(StringBuilder buf)
  
  Specified by:
  
  digest in class MutableRel
- clone
  
  public MutableRel clone()
  
  Specified by:
  
  clone in class MutableRel
- setInput
  
  public void setInput(int ordinalInParent, MutableRel input)
  
  Specified by:
  
  setInput in class MutableRel
- getInputs
  
  public List<MutableRel> getInputs()
  
  Specified by:
  
  getInputs in class MutableRel
- childrenAccept
  
  public void childrenAccept(MutableRelVisitor visitor)
  
  Specified by:
  
  childrenAccept in class MutableRel
- getInput
  
  public MutableRel getInput()