Module com.darkcollective.relix.ast

Package com.darkcollective.relix.ast

Record Class WindowFunction.OffsetWindow

java.lang.Object

java.lang.Record

com.darkcollective.relix.ast.WindowFunction.OffsetWindow

Record Components:

function - the offset function; never null

expression - the value expression to read from the offset row; never null

offset - the row offset (constant expression); empty defaults to 1

defaultValue - the value emitted when the offset falls outside the partition; empty defaults to NULL

All Implemented Interfaces:

WindowFunction

Enclosing interface:

WindowFunction

public static record WindowFunction.OffsetWindow(OffsetFunction function, Operand expression, Optional<Operand> offset, Optional<Operand> defaultValue)
extends Record
implements WindowFunction

An offset function (slice 4).

Nested Class Summary

Nested classes/interfaces inherited from interface com.darkcollective.relix.ast.WindowFunction

WindowFunction.AggregateWindow, WindowFunction.OffsetWindow, WindowFunction.RankingWindow

Constructor Summary

Constructors

Constructor	Description
OffsetWindow(OffsetFunction function, Operand expression, Optional<Operand> offset, Optional<Operand> defaultValue)	Creates an instance of a OffsetWindow record class.

Method Summary

Modifier and Type	Method	Description
Optional<Operand>	defaultValue()	Returns the value of the defaultValue record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
Operand	expression()	Returns the value of the expression record component.
OffsetFunction	function()	Returns the value of the function record component.
final int	hashCode()	Returns a hash code value for this object.
Optional<Operand>	offset()	Returns the value of the offset record component.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class java.lang.Object

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

Constructor Details

OffsetWindow

public OffsetWindow(OffsetFunction function,
 Operand expression,
 Optional<Operand> offset,
 Optional<Operand> defaultValue)

Creates an instance of a OffsetWindow record class.

Parameters:

function - the value for the function record component

expression - the value for the expression record component

offset - the value for the offset record component

defaultValue - the value for the defaultValue record component

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

function

public OffsetFunction function()

Returns the value of the function record component.

Returns:

the value of the function record component

expression

public Operand expression()

Returns the value of the expression record component.

Returns:

the value of the expression record component

offset

public Optional<Operand> offset()

Returns the value of the offset record component.

Returns:

the value of the offset record component

defaultValue

public Optional<Operand> defaultValue()

Returns the value of the defaultValue record component.

Returns:

the value of the defaultValue record component