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com.vaadin.flow.component.internal.

Class DependencyTreeCache<T>

  • Type Parameters:

    T - the value type

    All Implemented Interfaces:

    Serializable

    public class DependencyTreeCache<T>
extends Object
implements Serializable

    A caching tree traverser for collecting and parsing dependencies.

    For internal use only. May be renamed or removed in a future release.

    Since:

    1.2

    Author:

    Vaadin Ltd

    See Also:

    Serialized Form

    • Constructor Detail

      • DependencyTreeCache

        public DependencyTreeCache​(SerializableFunction<T,​Collection<T>> dependencyParser)

        Creates a dependency cache with the given dependency parser.

        Parameters:

        dependencyParser - a potentially slow callback function that finds the direct dependencies for any given value

    • Method Detail

      • getDependencies

        public Set<T> getDependencies​(T node)

        Collects all transitive dependencies of the given node, including the node itself.

        Parameters:

        node - the node for which to collect dependencies

        Returns:

        the transitive dependencies of the given node

      • clear

        public void clear()

        Clears all the contents of the cache. A lookup that is in progress while the cache is cleared may return a result that combines previously cached dependencies with newly parsed dependencies.