AppFunctionIntValueConstraint

@Retention(value = AnnotationRetention.BINARY)
@Target(allowedTargets = [AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY, AnnotationTarget.VALUE_PARAMETER])
public annotation AppFunctionIntValueConstraint

Specifies constraints applied on the integer values for return types, parameters, or properties in app functions.

This annotation can be applied to:

  • functions annotated with @AppFunction (to constrain the return value),

  • parameters of @AppFunction,

  • or properties within an @AppFunctionSerializable.

Usage Example:

// Constraining a function return value:
@AppFunction
@AppFunctionIntValueConstraint(enumValues = [0, 1, 2])
fun getDisplayMode(): Int {
    // Function body
}

// Constraining a parameter:
@AppFunction
fun adjustVolume(
    @AppFunctionIntValueConstraint(enumValues = [10, 15, 20, 25])
    volumeLevel: Int
) {
    // Function body
}

// Constraining a property within an AppFunctionSerializable:
@AppFunctionSerializable
data class MySettings(
    @property:AppFunctionIntValueConstraint(enumValues = [0, 1])
    val darkMode: Int
)

Summary

Public constructors

AppFunctionIntValueConstraint

Added in 1.0.0-alpha08
public AppFunctionIntValueConstraint(@NonNull int[] enumValues)

Public methods

getEnumValues

public final @NonNull int[] getEnumValues()

The list of allowed integer values for the annotated element.

These values are communicated to the agent or framework that interprets or invokes the @AppFunction. If any of the values carry special meaning (e.g., 0 means "off", 1 means "on"), such meanings should be documented clearly in the corresponding property, parameter, or function return KDoc.