SimpleLabelExpression class final
An expression script using the Simple REST language.
The label Simple expression expects to hold a legal, Simple script and to be read and evaluated by a Simple expression interpreter. An example expression that combines text with a field value is
"State: " CONCAT [State_Name]
Note that quotes are needed around the literal text. See Labeling objects for full documentation on the labelExpression syntax and functions. Warning: If the expression attempts to use attributes which don't exist then no label will be produced. This is distinct from the attribute existing but having a null or empty value, which can form part of the produced text label.
- Inheritance
-
- Object
- LabelExpression
- SimpleLabelExpression
Constructors
- SimpleLabelExpression({String simpleExpression = ''})
-
Create a label Simple expression with a specific Simple script.
factory
Properties
- expression ↔ String
-
The label expression script string.
getter/setter pairinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
clone(
) → LabelExpression -
Clones the LabelExpression.
inherited
-
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