Package org.apache.calcite.rel.mutable

Class MutableProject

java.lang.Object

org.apache.calcite.rel.mutable.MutableRel

org.apache.calcite.rel.mutable.MutableProject

public class MutableProject
extends MutableRel

Mutable equivalent of Project.

Field Summary

Fields

Modifier and Type	Field	Description
protected MutableRel	input
final List<RexNode>	projects

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()
@Nullable Mappings.TargetMapping	getMapping()
final List<Pair<RexNode,String>>	getNamedProjects()	Returns a list of (expression, name) pairs.
int	hashCode()
static MutableRel	of(MutableRel input, List<RexNode> exprList, List<String> fieldNameList)	Creates a MutableProject.
static MutableProject	of(RelDataType rowType, MutableRel input, List<RexNode> projects)	Creates a MutableProject.
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

projects

public final List<RexNode> projects

input

protected MutableRel input

Method Details

of

public static MutableProject of(RelDataType rowType,
 MutableRel input,
 List<RexNode> projects)

Creates a MutableProject.

Parameters:

rowType - Row type

input - Input relational expression

projects - List of expressions for the input columns

of

public static MutableRel of(MutableRel input,
 List<RexNode> exprList,
 List<String> fieldNameList)

Creates a MutableProject.

Parameters:

input - Input relational expression

exprList - List of expressions for the input columns

fieldNameList - Aliases of the expressions, or null to generate

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

getNamedProjects

public final List<Pair<RexNode,String>> getNamedProjects()

Returns a list of (expression, name) pairs.

getMapping

public @Nullable Mappings.TargetMapping getMapping()

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()