io.delta.standalone.expressions

Class BinaryExpression

Object

io.delta.standalone.expressions.BinaryExpression

All Implemented Interfaces:

Expression

Direct Known Subclasses:

BinaryOperator

public abstract class BinaryExpression
extends Object
implements Expression

An Expression with two inputs and one output. The output is by default evaluated to null if either input is evaluated to null.

Method Summary

Modifier and Type	Method and Description
java.util.List<Expression>	children()
boolean	equals(Object o)
Object	eval(RowRecord record)
Expression	getLeft()
Expression	getRight()
int	hashCode()

Methods inherited from class Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.delta.standalone.expressions.Expression

dataType, references, toString

Method Detail

getLeft

public Expression getLeft()

getRight

public Expression getRight()

eval

public final Object eval(RowRecord record)

Specified by:

eval in interface Expression

Parameters:

record - the input record to evaluate.

Returns:

the result of evaluating this expression on the given input RowRecord.

children

public java.util.List<Expression> children()

Specified by:

children in interface Expression

Returns:

a List of the immediate children of this node

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object