Package com.luciad.layers.features

Class FeatureStateEvent

java.lang.Object
com.luciad.layers.features.FeatureStateEvent
All Implemented Interfaces:
AutoCloseable
public final class FeatureStateEvent extends Object implements AutoCloseable
This class is used by IFeatureStateObserver to pass information about FeatureState changes.

It allows you to inspect which features have been changed, and their new values. One call to FeatureStateManager#applyStateChange will result in one FeatureStateEvent instance.

See FeatureStateManager for a usage example.

  • Method Details

    • finalize

      protected void finalize()
      Overrides:
      finalize in class Object

    • close

      public void close()
      Specified by:
      close in interface AutoCloseable

    • getChangedFeatureStates

      @NotNull public List<@NotNull FeatureState> getChangedFeatureStates()
      Returns the list of feature states that has been changed for at least one Feature in this event.
      Returns:
      the list of feature states that has been changed for at least one Feature in this event.

    • getChangedFeatures

      @NotNull public List<@NotNull LayerFeatureId> getChangedFeatures(@NotNull FeatureState featureState)
      Returns the list of features for which the given feature state has been changed.
      Parameters:
      featureState - a feature state
      Returns:
      the list of features for which the given feature state has been changed.

    • getChange

      public boolean getChange(@NotNull FeatureState featureState, @NotNull LayerFeatureId layerFeatureId)
      Returns the new value of the feature state for the given feature.
      Parameters:
      featureState - a feature state
      layerFeatureId - a feature
      Returns:
      the new value of the feature state for the given feature.