Package org.apache.calcite.rel.mutable

Class MutableRels

java.lang.Object

org.apache.calcite.rel.mutable.MutableRels

public abstract class MutableRels
extends java.lang.Object

Utilities for dealing with MutableRels.

Constructor Summary

Constructors

Constructor	Description
MutableRels()

Method Summary

Modifier and Type	Method	Description
static boolean	contains(MutableRel ancestor, MutableRel target)
static MutableRel	createCastRel(MutableRel rel, RelDataType castRowType, boolean rename)	Equivalence to RelOptUtil.createCastRel(org.apache.calcite.rel.RelNode, org.apache.calcite.rel.type.RelDataType, boolean) for MutableRel.
static MutableRel	createProject(MutableRel child, java.util.List<java.lang.Integer> posList)	Equivalent to RelOptUtil.createProject(org.apache.calcite.rel.RelNode, java.util.List) for MutableRel.
static java.util.List<MutableRel>	descendants(MutableRel query)
private static void	descendantsRecurse(java.util.List<MutableRel> list, MutableRel rel)
static RelNode	fromMutable(MutableRel node)
static RelNode	fromMutable(MutableRel node, RelBuilder relBuilder)
private static java.util.List<RelNode>	fromMutables(java.util.List<MutableRel> nodes, RelBuilder relBuilder)
static boolean	isTrivial(MutableProject project)	Based on ProjectRemoveRule.isTrivial(org.apache.calcite.rel.core.Project).
static MutableRel	preOrderTraverseNext(MutableRel node)
static MutableRel	strip(MutableProject project)	Based on ProjectRemoveRule.strip(org.apache.calcite.rel.core.Project).
static MutableRel	toMutable(RelNode rel)
private static java.util.List<MutableRel>	toMutables(java.util.List<RelNode> nodes)

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableRels

public MutableRels()

Method Detail

contains

public static boolean contains(MutableRel ancestor,
                               MutableRel target)

preOrderTraverseNext

public static MutableRel preOrderTraverseNext(MutableRel node)

descendants

public static java.util.List<MutableRel> descendants(MutableRel query)

descendantsRecurse

private static void descendantsRecurse(java.util.List<MutableRel> list,
                                       MutableRel rel)

strip

public static MutableRel strip(MutableProject project)

Based on ProjectRemoveRule.strip(org.apache.calcite.rel.core.Project).

isTrivial

public static boolean isTrivial(MutableProject project)

Based on ProjectRemoveRule.isTrivial(org.apache.calcite.rel.core.Project).

createProject

public static MutableRel createProject(MutableRel child,
                                       java.util.List<java.lang.Integer> posList)

Equivalent to RelOptUtil.createProject(org.apache.calcite.rel.RelNode, java.util.List) for MutableRel.

createCastRel

public static MutableRel createCastRel(MutableRel rel,
                                       RelDataType castRowType,
                                       boolean rename)

Equivalence to RelOptUtil.createCastRel(org.apache.calcite.rel.RelNode, org.apache.calcite.rel.type.RelDataType, boolean) for MutableRel.

fromMutable

public static RelNode fromMutable(MutableRel node)

fromMutable

public static RelNode fromMutable(MutableRel node,
                                  RelBuilder relBuilder)

fromMutables

private static java.util.List<RelNode> fromMutables(java.util.List<MutableRel> nodes,
                                                    RelBuilder relBuilder)

toMutable

public static MutableRel toMutable(RelNode rel)

toMutables

private static java.util.List<MutableRel> toMutables(java.util.List<RelNode> nodes)