Class ContainerHelpers

  • All Implemented Interfaces:
    Serializable

    public class ContainerHelpers
    extends Object
    implements Serializable
    Contains helper methods for containers that can be used to ease development of containers in Vaadin.
    Since:
    7.0
    See Also:
    Serialized Form
    • Constructor Detail

      • ContainerHelpers

        public ContainerHelpers()
    • Method Detail

      • getItemIdsUsingGetIdByIndex

        public static List<?> getItemIdsUsingGetIdByIndex​(int startIndex,
                                                          int numberOfIds,
                                                          Container.Indexed container)
        Get a range of item ids from the container using Container.Indexed.getIdByIndex(int). This is just a helper method to aid developers to quickly add the required functionality to a Container during development. This should not be used in a "finished product" unless fetching an id for an index is very inexpensive because a separate request will be performed for each index in the range.
        Parameters:
        startIndex - index of the first item id to get
        numberOfIds - the number of consecutive items whose ids should be returned
        container - the container from which the items should be fetched
        Returns:
        A list of item ids in the range specified