Package org.apache.druid.query.operator.window

Class WindowFrame

java.lang.Object

org.apache.druid.query.operator.window.WindowFrame

public class WindowFrame
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	WindowFrame.PeerType

Constructor Summary

Constructors

Constructor	Description
WindowFrame(WindowFrame.PeerType peerType, boolean lowerUnbounded, int lowerOffset, boolean upperUnbounded, int upperOffset, List<ColumnWithDirection> orderBy)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static WindowFrame	forOrderBy(ColumnWithDirection... orderBy)
int	getLowerOffset()
int	getLowerOffsetClamped(int maxRows)	Calculates the applicable lower offset if the max number of rows is known.
List<ColumnWithDirection>	getOrderBy()
List<String>	getOrderByColNames()
WindowFrame.PeerType	getPeerType()
int	getUpperOffset()
int	getUpperOffsetClamped(int maxRows)	Calculates the applicable upper offset if the max number of rows is known.
int	hashCode()
boolean	isLowerUnbounded()
boolean	isUpperUnbounded()
String	toString()
static WindowFrame	unbounded()

Methods inherited from class java.lang.Object

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

Constructor Detail

WindowFrame

public WindowFrame(WindowFrame.PeerType peerType,
                   boolean lowerUnbounded,
                   int lowerOffset,
                   boolean upperUnbounded,
                   int upperOffset,
                   List<ColumnWithDirection> orderBy)

Method Detail

unbounded

public static WindowFrame unbounded()

getPeerType

public WindowFrame.PeerType getPeerType()

isLowerUnbounded

public boolean isLowerUnbounded()

getLowerOffset

public int getLowerOffset()

isUpperUnbounded

public boolean isUpperUnbounded()

getUpperOffset

public int getUpperOffset()

getOrderBy

public List<ColumnWithDirection> getOrderBy()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

forOrderBy

public static WindowFrame forOrderBy(ColumnWithDirection... orderBy)

getOrderByColNames

public List<String> getOrderByColNames()

getLowerOffsetClamped

public int getLowerOffsetClamped(int maxRows)

Calculates the applicable lower offset if the max number of rows is known.

getUpperOffsetClamped

public int getUpperOffsetClamped(int maxRows)

Calculates the applicable upper offset if the max number of rows is known.