org.apache.calcite.materialize

Class Lattice.Column

java.lang.Object

org.apache.calcite.materialize.Lattice.Column

All Implemented Interfaces:

Comparable<Lattice.Column>

Enclosing class:

Lattice

public static class Lattice.Column
extends Object
implements Comparable<Lattice.Column>

Column in a lattice. Columns are identified by table alias and column name, and may have an additional alias that is unique within the entire lattice.

Field Summary

Fields

Modifier and Type	Field and Description
String	alias
String	column
int	ordinal
String	table

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Column(int ordinal, String table, String column, String alias)

Method Summary

Modifier and Type	Method and Description
int	compareTo(Lattice.Column column)
boolean	equals(Object obj)
int	hashCode()
List<String>	identifiers()
(package private) static ImmutableBitSet	toBitSet(List<Lattice.Column> columns) Converts a list of columns to a bit set of their ordinals.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ordinal

public final int ordinal

table

public final String table

column

public final String column

alias

public final String alias

Constructor Detail

Column

private Column(int ordinal,
               String table,
               String column,
               String alias)

Method Detail

toBitSet

static ImmutableBitSet toBitSet(List<Lattice.Column> columns)

Converts a list of columns to a bit set of their ordinals.

compareTo

public int compareTo(Lattice.Column column)

Specified by:

compareTo in interface Comparable<Lattice.Column>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

identifiers

public List<String> identifiers()