FrameBoundary class final

Base Class for Boundary in a window frame.

If null, the boundary is unbounded.

Negative value indicates a preceding boundary

Positive value indicates a following boundary

Zero indicates the current row

More information at FrameBoundary documentation.

Inheritance

Constructors

FrameBoundary.groups({int? start, int? end = 0, FrameExclude? exclude})
Constructs a GROUPS frame with the given start and end boundaries.
const
FrameBoundary.range({num? start, num? end = 0, FrameExclude? exclude})
Constructs a RANGE boundary with the given start and end.
const
FrameBoundary.rows({int? start, int? end = 0, FrameExclude? exclude})
Constructs a ROWS frame with the given start and end boundaries.
const

Properties

end num?
The end of the frame boundary, relative to the current row.
final
exclude FrameExclude?
Specifies which rows to exclude from the frame
final
hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
start num?
The start of the frame boundary, relative to the current row.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited
writeInto(GenerationContext context) → void
Writes this component into the context by writing to its GenerationContext.buffer or by introducing bound variables. When writing into the buffer, no whitespace around the this component should be introduced. When a component consists of multiple composed component, it's responsible for introducing whitespace between its child components.
override

Operators

operator ==(Object other) bool
The equality operator.
inherited