OffsetWindowFunctionFrameBase

abstract class OffsetWindowFunctionFrameBase extends WindowFunctionFrame

The offset window frame calculates frames containing LEAD/LAG statements.

Linear Supertypes

WindowFunctionFrame, AnyRef, Any

Known Subclasses

FrameLessOffsetWindowFunctionFrame, UnboundedOffsetWindowFunctionFrame, UnboundedPrecedingOffsetWindowFunctionFrame

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Inherited

OffsetWindowFunctionFrameBase
WindowFunctionFrame
AnyRef
Any

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Visibility

Public
Protected

Instance Constructors

new OffsetWindowFunctionFrameBase(target: InternalRow, ordinal: Int, expressions: Array[OffsetWindowFunction], inputSchema: Seq[Attribute], newMutableProjection: (Seq[Expression], Seq[Attribute]) => MutableProjection, offset: Int)
target
to write results to.
ordinal
the ordinal is the starting offset at which the results of the window frame get written into the (shared) target row. The result of the frame expression with index 'i' will be written to the 'ordinal' + 'i' position in the target row.
expressions
to shift a number of rows.
inputSchema
required for creating a projection.
newMutableProjection
function used to create the projection.
offset
by which rows get moved within a partition.

Abstract Value Members

abstract def prepare(rows: ExternalAppendOnlyUnsafeRowArray): Unit
Prepare the frame for calculating the results for a partition.
Prepare the frame for calculating the results for a partition.
rows
to calculate the frame results for.
Definition Classes
WindowFunctionFrame
abstract def write(index: Int, current: InternalRow): Unit
Write the current results to the target row.
Write the current results to the target row.
Definition Classes
WindowFunctionFrame

Concrete Value Members

final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##: Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0
Definition Classes
Any
def clone(): AnyRef
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native()
def currentLowerBound(): Int
The current lower window bound in the row array (inclusive).
The current lower window bound in the row array (inclusive).
This should be called after the current row is updated via write.
Definition Classes
OffsetWindowFunctionFrameBase → WindowFunctionFrame
def currentUpperBound(): Int
The current row index of the upper window bound in the row array (exclusive)
The current row index of the upper window bound in the row array (exclusive)
This should be called after the current row is updated via write.
Definition Classes
OffsetWindowFunctionFrameBase → WindowFunctionFrame
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(arg0: AnyRef): Boolean
Definition Classes
AnyRef → Any
val fillDefaultValue: MutableProjection
Create the projection used when the offset row DOES NOT exists.
Create the projection used when the offset row DOES NOT exists.
Attributes
protected
def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable])
def findNextRowWithNonNullInput(): Unit
find the offset row whose input is not null
find the offset row whose input is not null
Attributes
protected
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native()
def hashCode(): Int
Definition Classes
AnyRef → Any
Annotations
@native()
var input: ExternalAppendOnlyUnsafeRowArray
Rows of the partition currently being processed.
Rows of the partition currently being processed.
Attributes
protected
val inputAttrs: Seq[Attribute]
Attributes of the input row currently used for output.
Attributes of the input row currently used for output.
Attributes
protected
var inputIndex: Int
Index of the input row currently used for output.
Index of the input row currently used for output.
Attributes
protected
var inputIterator: Iterator[UnsafeRow]
An iterator over the input
An iterator over the input
Attributes
protected
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
var nextSelectedRow: InternalRow
Holder the UnsafeRow where the input operator by function is not null.
Holder the UnsafeRow where the input operator by function is not null.
Attributes
protected
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native()
def nullCheck(row: InternalRow): Boolean
Check if the output value of the first index is null.
Check if the output value of the first index is null.
Attributes
protected
val project: UnsafeProjection
Create the projection to determine whether input is null.
Create the projection to determine whether input is null.
Attributes
protected
val projection: MutableProjection
Create the projection used when the offset row exists.
Create the projection used when the offset row exists. Please note that this project always respect null input values (like PostgreSQL).
Attributes
protected
def resetStates(rows: ExternalAppendOnlyUnsafeRowArray): Unit
Attributes
protected
var skippedNonNullCount: Int
Attributes
protected
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
def toString(): String
Definition Classes
AnyRef → Any
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()

Inherited from WindowFunctionFrame

Value Members

abstract def prepare(rows: ExternalAppendOnlyUnsafeRowArray): Unit
Prepare the frame for calculating the results for a partition.
Prepare the frame for calculating the results for a partition.
rows
to calculate the frame results for.
Definition Classes
WindowFunctionFrame
abstract def write(index: Int, current: InternalRow): Unit
Write the current results to the target row.
Write the current results to the target row.
Definition Classes
WindowFunctionFrame

Inherited from AnyRef

Value Members

final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##: Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
def clone(): AnyRef
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native()
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(arg0: AnyRef): Boolean
Definition Classes
AnyRef → Any
def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable])
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native()
def hashCode(): Int
Definition Classes
AnyRef → Any
Annotations
@native()
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
def toString(): String
Definition Classes
AnyRef → Any
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Any

Value Members

final def asInstanceOf[T0]: T0
Definition Classes
Any
final def isInstanceOf[T0]: Boolean
Definition Classes
Any

Ungrouped

abstract def prepare(rows: ExternalAppendOnlyUnsafeRowArray): Unit
Prepare the frame for calculating the results for a partition.
Prepare the frame for calculating the results for a partition.
rows
to calculate the frame results for.
Definition Classes
WindowFunctionFrame
abstract def write(index: Int, current: InternalRow): Unit
Write the current results to the target row.
Write the current results to the target row.
Definition Classes
WindowFunctionFrame
final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##: Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0
Definition Classes
Any
def clone(): AnyRef
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native()
def currentLowerBound(): Int
The current lower window bound in the row array (inclusive).
The current lower window bound in the row array (inclusive).
This should be called after the current row is updated via write.
Definition Classes
OffsetWindowFunctionFrameBase → WindowFunctionFrame
def currentUpperBound(): Int
The current row index of the upper window bound in the row array (exclusive)
The current row index of the upper window bound in the row array (exclusive)
This should be called after the current row is updated via write.
Definition Classes
OffsetWindowFunctionFrameBase → WindowFunctionFrame
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(arg0: AnyRef): Boolean
Definition Classes
AnyRef → Any
val fillDefaultValue: MutableProjection
Create the projection used when the offset row DOES NOT exists.
Create the projection used when the offset row DOES NOT exists.
Attributes
protected
def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable])
def findNextRowWithNonNullInput(): Unit
find the offset row whose input is not null
find the offset row whose input is not null
Attributes
protected
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native()
def hashCode(): Int
Definition Classes
AnyRef → Any
Annotations
@native()
var input: ExternalAppendOnlyUnsafeRowArray
Rows of the partition currently being processed.
Rows of the partition currently being processed.
Attributes
protected
val inputAttrs: Seq[Attribute]
Attributes of the input row currently used for output.
Attributes of the input row currently used for output.
Attributes
protected
var inputIndex: Int
Index of the input row currently used for output.
Index of the input row currently used for output.
Attributes
protected
var inputIterator: Iterator[UnsafeRow]
An iterator over the input
An iterator over the input
Attributes
protected
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
var nextSelectedRow: InternalRow
Holder the UnsafeRow where the input operator by function is not null.
Holder the UnsafeRow where the input operator by function is not null.
Attributes
protected
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native()
def nullCheck(row: InternalRow): Boolean
Check if the output value of the first index is null.
Check if the output value of the first index is null.
Attributes
protected
val project: UnsafeProjection
Create the projection to determine whether input is null.
Create the projection to determine whether input is null.
Attributes
protected
val projection: MutableProjection
Create the projection used when the offset row exists.
Create the projection used when the offset row exists. Please note that this project always respect null input values (like PostgreSQL).
Attributes
protected
def resetStates(rows: ExternalAppendOnlyUnsafeRowArray): Unit
Attributes
protected
var skippedNonNullCount: Int
Attributes
protected
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
def toString(): String
Definition Classes
AnyRef → Any
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()

Packages

OffsetWindowFunctionFrameBase

abstract class OffsetWindowFunctionFrameBase extends WindowFunctionFrame

Instance Constructors

Abstract Value Members

Concrete Value Members

Inherited from WindowFunctionFrame

Value Members

Inherited from AnyRef

Value Members

Inherited from Any

Value Members

Ungrouped

OffsetWindowFunctionFrameBase