Interface VisibilityDiscriminator


  • public interface VisibilityDiscriminator
    Interface for controlling the visibility of child properties based on the value of the parent property. This applies to properties that have been arranged in a tree-like structure by calling Install4JPropertyDescriptor.setParentProperty(String) on their property descriptors. If you register an implementation of this interface with Install4JPropertyDescriptor.setVisibilityDiscriminator(VisibilityDiscriminator), each time the value of the parent property changes, a callback will be made to isVisible(Bean, Object) in order to decide whether the child property should be visible or not.

    For boolean parent properties, if you not register a visibility discriminator, the children will be hidden if the user selection of the parent property is false.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean isVisible​(Bean bean, java.lang.Object parentPropertyValue)
      Determine if the property for which this callback has been registered should be visible or not.
    • Method Detail

      • isVisible

        boolean isVisible​(Bean bean,
                          java.lang.Object parentPropertyValue)
        Determine if the property for which this callback has been registered should be visible or not. Each time the value of the parent property changes, this method will be called.
        Parameters:
        bean - the bean to which both parent and child property belong
        parentPropertyValue - the value of the parent property
        Returns:
        whether the child property should be visible or not