Class: QgsExpressionNodeBinaryOperator

A binary expression operator, which operates on two values.

Class Hierarchy

Inheritance diagram of qgis.core.QgsExpressionNodeBinaryOperator

Base classes

QgsExpressionNode

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

See also

opRight()

Return type:

Optional[QgsExpressionNode]

opRight(self) → QgsExpressionNode | None[source]

Returns the node to the right of the operator.

See also

opLeft()

Return type:

Optional[QgsExpressionNode]

precedence(self) → int[source]

Returns the precedence index for the operator. Higher values have higher precedence.

Return type:

int

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

bool

text(self) → str[source]

Returns a the name of this operator without the operands. I.e. “AND”, “OR”, …

Return type:

str