Package org.apache.calcite.materialize

Class LatticeSpace

java.lang.Object

org.apache.calcite.materialize.LatticeSpace

class LatticeSpace
extends java.lang.Object

Space within which lattices exist.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) AttributedDirectedGraph<LatticeTable,Step>	g
(package private) java.util.Map<java.lang.String,LatticeRootNode>	nodeMap	Root nodes, indexed by digest.
(package private) java.util.Map<com.google.common.collect.ImmutableList<Step>,Path>	pathMap
private java.util.Set<java.lang.String>	simpleNames
private java.util.Map<java.util.List<java.lang.String>,java.lang.String>	simpleTableNames
(package private) SqlStatisticProvider	statisticProvider
private java.util.Map<java.util.List<java.lang.String>,LatticeTable>	tableMap

Constructor Summary

Constructors

Constructor	Description
LatticeSpace(SqlStatisticProvider statisticProvider)

Method Summary

Modifier and Type	Method	Description
(package private) Step	addEdge(LatticeTable source, LatticeTable target, java.util.List<IntPair> keys)
(package private) Path	addPath(java.util.List<Step> steps)
(package private) LatticeTable	register(RelOptTable t)
(package private) java.lang.String	simpleName(java.util.List<java.lang.String> table)
(package private) java.lang.String	simpleName(LatticeTable table)	Derives a unique name for a table, qualifying with schema name only if necessary.
(package private) java.lang.String	simpleName(RelOptTable table)
(package private) static java.util.List<IntPair>	sortUnique(java.util.List<IntPair> keys)	Returns a list of IntPair that is sorted and unique.
(package private) static java.util.List<IntPair>	swap(java.util.List<IntPair> keys)	Returns a list of IntPair, transposing source and target fields, and ensuring the result is sorted and unique.

Methods inherited from class java.lang.Object

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

Field Detail

statisticProvider

final SqlStatisticProvider statisticProvider

tableMap

private final java.util.Map<java.util.List<java.lang.String>,LatticeTable> tableMap

g

final AttributedDirectedGraph<LatticeTable,Step> g

simpleTableNames

private final java.util.Map<java.util.List<java.lang.String>,java.lang.String> simpleTableNames

simpleNames

private final java.util.Set<java.lang.String> simpleNames

nodeMap

final java.util.Map<java.lang.String,LatticeRootNode> nodeMap

Root nodes, indexed by digest.

pathMap

final java.util.Map<com.google.common.collect.ImmutableList<Step>,Path> pathMap

Constructor Detail

LatticeSpace

LatticeSpace(SqlStatisticProvider statisticProvider)

Method Detail

simpleName

java.lang.String simpleName(LatticeTable table)

Derives a unique name for a table, qualifying with schema name only if necessary.

simpleName

java.lang.String simpleName(RelOptTable table)

simpleName

java.lang.String simpleName(java.util.List<java.lang.String> table)

register

LatticeTable register(RelOptTable t)

addEdge

Step addEdge(LatticeTable source,
             LatticeTable target,
             java.util.List<IntPair> keys)

sortUnique

static java.util.List<IntPair> sortUnique(java.util.List<IntPair> keys)

Returns a list of IntPair that is sorted and unique.

swap

static java.util.List<IntPair> swap(java.util.List<IntPair> keys)

Returns a list of IntPair, transposing source and target fields, and ensuring the result is sorted and unique.

addPath

Path addPath(java.util.List<Step> steps)