Class: QgsExpressionNodeBetweenOperator¶

SQL-like BETWEEN and NOT BETWEEN predicates.

Added in version 3.26.

Note

This is an abstract class, with methods which must be implemented by a subclass.

The following methods must be implemented: QgsExpressionNode.needsGeometry()

Class Hierarchy¶

Base classes¶

QgsExpressionNode

Abstract base class for all nodes that can appear in an expression.

Methods

`higherBound`	Returns the higher bound expression node of the range.
`lowerBound`	Returns the lower bound expression node of the range.
`negate`	Returns `True` if the predicate is an exclusion test (NOT BETWEEN).
`node`	Returns the expression node.

Virtual Methods

In PyQGIS, only methods marked as virtual can be safely overridden in a Python subclass of QgsExpressionNodeBetweenOperator. See the FAQ for more details.

`evalNode`
`prepareNode`

class qgis.core.QgsExpressionNodeBetweenOperator[source]¶

Bases: QgsExpressionNode

__init__(node: QgsExpressionNode | None, nodeLowerBound: QgsExpressionNode | None, nodeHigherBound: QgsExpressionNode | None, negate: bool = False)

This node tests if the result of node is between the result of nodeLowerBound and nodeHigherBound nodes. Optionally it can be inverted with negate which by default is False.

Parameters:

node (Optional[QgsExpressionNode])
nodeLowerBound (Optional[QgsExpressionNode])
nodeHigherBound (Optional[QgsExpressionNode])
negate (bool = False)

virtual evalNode(self, parent: QgsExpression | None, context: QgsExpressionContext | None) → Any[source]¶

Parameters:

parent (Optional[QgsExpression])
context (Optional[QgsExpressionContext])

Return type:

Any

higherBound(self) → QgsExpressionNode | None[source]¶

Returns the higher bound expression node of the range.

Return type:: Optional[QgsExpressionNode]

lowerBound(self) → QgsExpressionNode | None[source]¶

Returns the lower bound expression node of the range.

Return type:: Optional[QgsExpressionNode]

negate(self) → bool[source]¶

Returns True if the predicate is an exclusion test (NOT BETWEEN).

Return type:: bool

node(self) → QgsExpressionNode | None[source]¶

Returns the expression node.

Return type:: Optional[QgsExpressionNode]

virtual prepareNode(self, parent: QgsExpression | None, context: QgsExpressionContext | None) → bool[source]¶

Parameters:

parent (Optional[QgsExpression])
context (Optional[QgsExpressionContext])

Return type:

bool