Package arez.spy

Interface ComputableValueInfo

All Superinterfaces:
ElementInfo
public interface ComputableValueInfo extends ElementInfo
A representation of a ComputableValue instance exposed to spy framework.

  • Method Details

    • isComputing

      boolean isComputing()
      Return true if the ComputableValue is "computing". This implies that the current transaction or one of the parent transactions is calculating the ComputableValue at the moment.
      Returns:
      true if there is a transaction active.

    • getPriority

      @Nonnull Priority getPriority()
      Return the priority of the ComputableValue.
      Returns:
      the priority of the ComputableValue.

    • isActive

      boolean isActive()
      Return true if the ComputableValue is active. A ComputableValue is active if there is one or more Observers and the value will be calculated.
      Returns:
      true if the ComputableValue is active.

    • getObservers

      @Nonnull List<ObserverInfo> getObservers()
      Return the list of observers for ComputableValue. The list is an immutable copy of the observers of the ComputableValue.
      Returns:
      the list of observers for ComputableValue.

    • getDependencies

      @Nonnull List<ObservableValueInfo> getDependencies()
      Return the list of dependencies of the ComputableValue. The list is an immutable copy of the dependencies of the ComputableValue. If the ComputableValue is currently being computed (i.e. isComputing() returns true) then the dependencies are provisional and may be added to as transaction completes.
      Returns:
      the list of dependencies for ComputableValue.

    • getComponent

      @Nullable ComponentInfo getComponent()
      Return the component for the ComputableValue. This method should not be invoked if Arez.areNativeComponentsEnabled() returns false.
      Returns:
      the component that contains ComputableValue if any.

    • getValue

      @OmitSymbol(unless="arez.enable_property_introspection") @Nullable Object getValue() throws Throwable
      Return the value of the ComputableValue. This method should only be invoked if Arez.arePropertyIntrospectorsEnabled() returns true.
      Returns:
      the value of the ComputableValue.
      Throws:
      Throwable - if the property accessor throws an exception.