org.apache.druid.segment.join

Class Equality

java.lang.Object

org.apache.druid.segment.join.Equality

public class Equality
extends Object

Represents a join condition between a left-hand-side expression (leftExpr) and a right-hand-side direct column access (rightColumn). This is a particularly interesting kind of condition because it can be resolved using a hashtable on the right-hand side. Note that this class does not override "equals" or "hashCode". This is because Expr also does not.

Constructor Summary

Constructors

Constructor and Description
Equality(Expr leftExpr, String rightColumn)

Method Summary

Modifier and Type	Method and Description
Expr	getLeftExpr()
String	getRightColumn()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Equality

public Equality(Expr leftExpr,
                String rightColumn)

Method Detail

getLeftExpr

public Expr getLeftExpr()

getRightColumn

public String getRightColumn()

toString

public String toString()

Overrides:

toString in class Object