Package com.blazebit.persistence.querydsl

Class WindowRows<Def extends WindowDefinition<Def,?>>

java.lang.Object

com.blazebit.persistence.querydsl.WindowRows<Def>

Type Parameters:

Def - Builder type

public class WindowRows<Def extends WindowDefinition<Def,?>>
extends Object

WindowRows provides the building of the rows/range part of the window function expression. Analog to WindowRows.

Since:

1.5.0

Author:

Jan-Willem Gmelig Meyling

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	WindowRows.Between	An interface for building a window frame clause for analytics functions.
class	WindowRows.BetweenAnd	Intermediate step

Constructor Summary

Constructors

Constructor	Description
WindowRows(Def windowFunction, WindowFrameMode frameMode)

Method Summary

Modifier and Type	Method	Description
WindowRows.Between	between()	Start a frame between builder.
Def	currentRow()	Uses CURRENT ROW as lower bound for the frame and starts a frame between builder for the upper bound.
Def	preceding(int i)	Uses X PRECEDING as lower bound and continues to the frame exclusion builder.
Def	preceding(com.querydsl.core.types.Expression<Integer> expr)	Uses X PRECEDING as lower bound and continues to the frame exclusion builder.
Def	unboundedPreceding()	Uses UNBOUNDED PRECEDING as lower bound for the frame and starts a frame between builder for the upper bound.

Methods inherited from class java.lang.Object

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

Constructor Details

WindowRows

public WindowRows(Def windowFunction, WindowFrameMode frameMode)

Method Details

between

public WindowRows.Between between()

Start a frame between builder.

Returns:

The frame between builder

unboundedPreceding

public Def unboundedPreceding()

Uses UNBOUNDED PRECEDING as lower bound for the frame and starts a frame between builder for the upper bound.

Returns:

The frame builder

currentRow

public Def currentRow()

Uses CURRENT ROW as lower bound for the frame and starts a frame between builder for the upper bound.

Returns:

The frame builder

preceding

public Def preceding(com.querydsl.core.types.Expression<Integer> expr)

Uses X PRECEDING as lower bound and continues to the frame exclusion builder.

Parameters:

expr - The expression for the frame bound

Returns:

The frame exclusion builder

preceding

public Def preceding(int i)

Uses X PRECEDING as lower bound and continues to the frame exclusion builder.

Parameters:

i - The number of preceding rows

Returns:

The frame exclusion builder