An Arcade expression object, containing an expression, a name, a return type and a title. More...
| Header: | #include <ArcadeExpression.h> |
| Since: | Esri::ArcGISRuntime 100.11 |
| Inherits: | Esri::ArcGISRuntime::Object and Esri::ArcGISRuntime::JsonSerializable |
This class was introduced in Esri::ArcGISRuntime 100.11.
Public Functions
| ArcadeExpression(const QString &expression, const QString &title, const QString &name, Esri::ArcGISRuntime::ArcadeExpressionReturnType returnType, QObject *parent = nullptr) | |
| ArcadeExpression(const QString &expression, const QString &title, const QString &name, QObject *parent = nullptr) | |
| ArcadeExpression(const QString &expression, QObject *parent = nullptr) | |
| virtual | ~ArcadeExpression() override |
| bool | equals(Esri::ArcGISRuntime::ArcadeExpression *other) const |
| QString | expression() const |
| QString | name() const |
| Esri::ArcGISRuntime::ArcadeExpressionReturnType | returnType() const |
| QString | title() const |
Reimplemented Public Functions
| virtual QString | toJson() const override |
| virtual QJsonObject | unknownJson() const override |
| virtual QJsonObject | unsupportedJson() const override |
Static Public Members
| Esri::ArcGISRuntime::ArcadeExpression * | fromJson(const QString &json, QObject *parent = nullptr) |
Detailed Description
An ArcadeExpression object gathers an Arcade script expression together with: - the expected return type - the name that a map author uses to refer to it - the title that the author uses to describe the expression.
Member Function Documentation
ArcadeExpression::ArcadeExpression (const QString &expression, const QString &title, const QString &name, Esri::ArcGISRuntime::ArcadeExpressionReturnType returnType , QObject *parent = nullptr)
Creates a new ArcadeExpression object
- expression - The Arcade expression to be evaluated. If set to an empty expression string then the evaluation will return zero, false, an empty string, or null, depending on whether the l {Esri::ArcGISRuntime::ArcadeExpressionReturnType} is ArcadeExpressionReturnType::Number, ArcadeExpressionReturnType::Boolean, ArcadeExpressionReturnType::String, or anything else, respectively.
- expression - The Arcade expression to be evaluated.
- title - The title of the expression.
- name - The name of the expression.
- returnType - Specify the type to cast the evaluated value to.
- parent - The optional parent QObject.
If the Arcade expression creates results of a different type (for example, a Date or an Array), then the result will be cast to the expected return type. If no sensible cast can be carried out, then the result will be null.
ArcadeExpression::ArcadeExpression (const QString &expression, const QString &title, const QString &name, QObject *parent = nullptr)
Creates a new ArcadeExpression object
- expression - The Arcade expression to be evaluated.
- title - The title of the expression.
- name - The name of the expression.
- parent - The optional parent QObject.
The returnType will default to ArcadeExpressionReturnType::Automatic.
ArcadeExpression::ArcadeExpression (const QString &expression, QObject *parent = nullptr)
Creates a new ArcadeExpression object with an expression script.
- expression - The Arcade expression to be evaluated.
- parent - The optional parent QObject.
The name and title will default to empty strings. The returnType will default to ArcadeExpressionReturnType::Automatic.
[override virtual] ArcadeExpression::~ArcadeExpression ()
Destructor.
bool ArcadeExpression::equals(Esri::ArcGISRuntime::ArcadeExpression *other) const
Returns tests if two ArcadeExpression objects are equal.
- other - The second object.
QString ArcadeExpression::expression() const
Returns the Arcade expression string.
[static] Esri::ArcGISRuntime::ArcadeExpression *ArcadeExpression::fromJson (const QString &json, QObject *parent = nullptr)
Creates a new ArcadeExpression from json with an optional parent.
See also JsonSerializable.
QString ArcadeExpression::name() const
Returns the name that the author uses to refer to the expression.
If not set explicitly, then the default is an empty name string.
Esri::ArcGISRuntime::ArcadeExpressionReturnType ArcadeExpression::returnType () const
Returns the expected return type of the expression.
If the Arcade expression creates results of a different type (for example, a Date or an Array), then the result will be cast to the expected return type. If no sensible cast can be carried out, then the result will be null.
QString ArcadeExpression::title() const
Returns the title that the author uses to describe the expression.
If not set explicitly, then the default is an empty title string.
[override virtual] QString ArcadeExpression::toJson () const
Reimplements: JsonSerializable::toJson() const.
Gets the json representation of this object.
See also JsonSerializable.
[override virtual] QJsonObject ArcadeExpression::unknownJson () const
Reimplements: JsonSerializable::unknownJson() const.
Gets the unknown JSON of this object.
See also JsonSerializable.
[override virtual] QJsonObject ArcadeExpression::unsupportedJson () const
Reimplements: JsonSerializable::unsupportedJson() const.
Gets the unsupported JSON of this object.
See also JsonSerializable.