Class: QgsExpressionNodeBinaryOperator¶

A binary expression operator, which operates on two values.

Class Hierarchy¶

Base classes¶

QgsExpressionNode

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

Methods

`leftAssociative`	Returns `True` if the operator is left-associative.
`op`	Returns the binary operator.
`opLeft`	Returns the node to the left of the operator.
`opRight`	Returns the node to the right of the operator.
`precedence`	Returns the precedence index for the operator.
`text`	Returns a the name of this operator without the operands.

Virtual Methods

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

`evalNode`
`prepareNode`

Attributes

`boAnd`
`boConcat`
`boDiv`
`boEQ`
`boGE`
`boGT`
`boILike`
`boIntDiv`
`boIs`
`boIsNot`
`boLE`
`boLT`
`boLike`
`boMinus`
`boMod`
`boMul`
`boNE`
`boNotILike`
`boNotLike`
`boOr`
`boPlus`
`boPow`
`boRegexp`

class qgis.core.QgsExpressionNodeBinaryOperator[source]¶

Bases: QgsExpressionNode

__init__(op: QgsExpressionNodeBinaryOperator.BinaryOperator, opLeft: QgsExpressionNode | None, opRight: QgsExpressionNode | None)

Binary combination of the left and the right with op.

Parameters:

op (QgsExpressionNodeBinaryOperator.BinaryOperator)
opLeft (Optional[QgsExpressionNode])
opRight (Optional[QgsExpressionNode])

class BinaryOperator¶: Bases: int

boAnd = 1¶

boConcat = 22¶

boDiv = 18¶

boEQ = 2¶

boGE = 5¶

boGT = 7¶

boILike = 11¶

boIntDiv = 19¶

boIs = 13¶

boIsNot = 14¶

boLE = 4¶

boLT = 6¶

boLike = 9¶

boMinus = 16¶

boMod = 20¶

boMul = 17¶

boNE = 3¶

boNotILike = 12¶

boNotLike = 10¶

boOr = 0¶

boPlus = 15¶

boPow = 21¶

boRegexp = 8¶

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

Parameters:

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

Return type:

Any

leftAssociative(self) → bool[source]¶

Returns True if the operator is left-associative.

Return type:: bool

op(self) → QgsExpressionNodeBinaryOperator.BinaryOperator[source]¶

Returns the binary operator.

Return type:: QgsExpressionNodeBinaryOperator.BinaryOperator

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

Returns the node to the left of the operator.