Package de.xima.fc.interfaces.workflow.bpmn

Interface IWorkflowBpmnDataStore

  • public interface IWorkflowBpmnDataStore
    The data store that provides access to custom data associated with the current BPMN model context. Can be used, for example, as a generic way to cache data temporarily during the BPMN model creation process. All data will be discarded after the BPMN model was created.
    Since:
    8.4.0

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      <K,​V>
      V      		 compute​(K key, Class<V> valueType, BiFunction<? super K,​? super V,​? extends V> updater)
      Computes a value for the given key using the provided updater function.
      <K,​V>
      V      		 computeIfAbsent​(K key, Class<V> valueType, Function<? super K,​? extends V> initializer)
      Computes a value for the given key if no value is currently associated with it, using the provided initializer function.
      Iterable<Map.Entry<Object,​Object>> entries()
      Returns an iterable over all entries in the data store.
      Object get​(Object key)
      Gets the value associated with the given key.
      <T> T get​(Object key, Class<T> type)
      Gets the value associated with the given key, cast to the specified type.
      void remove​(Object key)
      Removes the value associated with the given key (if any).
      void set​(Object key, Object value)
      Associates the given value with the given key.

    • Method Detail

      • compute

        <K,​V> V compute​(K key,
                      Class<V> valueType,
                      BiFunction<? super K,​? super V,​? extends V> updater)
        Computes a value for the given key using the provided updater function. If a value is already associated with the key, the updater function is called with the key and the current value, and the result is stored as the new value. If no value is currently associated with the key, the updater function gets called with the key and a null value.
        Type Parameters:
        K - The type of the key.
        V - The type of the value.
        Parameters:
        key - The key to look up.
        valueType - The type of the value.
        updater - The function to compute the new value.
        Returns:
        The new or updated value associated with the key.

      • computeIfAbsent

        <K,​V> V computeIfAbsent​(K key,
                              Class<V> valueType,
                              Function<? super K,​? extends V> initializer)
        Computes a value for the given key if no value is currently associated with it, using the provided initializer function.
        Type Parameters:
        K - The type of the key
        V - The type of the value
        Parameters:
        key - The key to look up
        valueType - The type of the value to be computed.
        initializer - The function to compute the value if no value is currently associated with the key
        Returns:
        The value associated with the key, either the existing value or the newly computed value

      • entries

        Iterable<Map.Entry<Object,​Object>> entries()
        Returns an iterable over all entries in the data store.
        Returns:
        An iterable over all entries in the data store.

      • get

        <T> T get​(Object key,
          Class<T> type)
        Gets the value associated with the given key, cast to the specified type.
        Type Parameters:
        T - The type to cast the value to
        Parameters:
        key - The key to look up
        type - The type to cast the value to
        Returns:
        The value associated with the key, cast to the specified type, or null if no value is associated with the key or if the value is not of the specified type.

      • get

        Object get​(Object key)
        Gets the value associated with the given key.
        Parameters:
        key - The key to look up
        Returns:
        The value associated with the key, or null if no value is associated with the key.

      • remove

        void remove​(Object key)
        Removes the value associated with the given key (if any).
        Parameters:
        key - The key to remove the value for.

      • set

        void set​(Object key,
         Object value)
        Associates the given value with the given key.
        Parameters:
        key - The key to associate the value with
        value - The value to associate with the key. If null, behaves like remove(Object).