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.

Implemented types

• SqlComponent

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

frameType → FrameType

The type of frame for the boundary.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

start → num?

The start of the frame boundary, relative to the current row.

final

Methods

compileWith(StatementCompiler compiler) → void

Compiles this component with the given StatementCompiler by invoking the relevant add method on it.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited