Package com.blazebit.persistence

Interface WindowBuilder<T>

Type Parameters:

T - The builder return type

All Superinterfaces:

OrderByBuilder<WindowBuilder<T>>

public interface WindowBuilder<T>
extends OrderByBuilder<WindowBuilder<T>>

An interface for building a window for analytics functions.

Since:

1.4.0

Author:

Christian Beikov

Method Summary

Modifier and Type	Method	Description
T	end()	Finishes the window builder.
<X extends WhereBuilder<X> & WindowBuilder<X>> X	filter()	Starts a filter builder.
WindowFrameBuilder<T>	groups()	Starts a frame builder with the GROUPS frame mode.
WindowBuilder<T>	partitionBy(String partitionExpression)	Adds a partition by clause with the given expression to the window.
WindowBuilder<T>	partitionBy(String... partitionExpressions)	Adds a partition by clause with the given expressions to the window.
WindowFrameBuilder<T>	range()	Starts a frame builder with the RANGE frame mode.
WindowFrameBuilder<T>	rows()	Starts a frame builder with the ROWS frame mode.

Methods inherited from interface com.blazebit.persistence.OrderByBuilder

orderBy, orderBy, orderByAsc, orderByAsc, orderByDesc, orderByDesc

Method Detail

filter

<X extends WhereBuilder<X> & WindowBuilder<X>> X filter()

Starts a filter builder.

Type Parameters:

X - The filter builder type

Returns:

The filter builder

partitionBy

WindowBuilder<T> partitionBy(String... partitionExpressions)

Adds a partition by clause with the given expressions to the window.

Parameters:

partitionExpressions - The expressions for the partition by clause

Returns:

The window builder for chaining calls

partitionBy

WindowBuilder<T> partitionBy(String partitionExpression)

Adds a partition by clause with the given expression to the window.

Parameters:

partitionExpression - The expression for the partition by clause

Returns:

The window builder for chaining calls

rows

WindowFrameBuilder<T> rows()

Starts a frame builder with the ROWS frame mode.

Returns:

The frame builder

range

WindowFrameBuilder<T> range()

Starts a frame builder with the RANGE frame mode.

Returns:

The frame builder

groups

WindowFrameBuilder<T> groups()

Starts a frame builder with the GROUPS frame mode.

Returns:

The frame builder

end

T end()

Finishes the window builder.

Returns:

The parent query builder