Class DataDistributionByHash

  • All Implemented Interfaces:
    DataDistributionType

    public class DataDistributionByHash
    extends AbstractDataDistributionType
    It will generate from the data id an hash code thanks to an hashing function then with this hash code it will be able to generate a hierarchy of sub-nodes with n levels of depth for example with n = 4 and MD5 as hashing function: For "john.smith" with MD5, the hash code in base 32 is 12spjkm4fhsrl151pva3f7mf1r, so the path would be "1/2/s/john.smith"
    Version:
    $Id$
    Author:
    Nicolas Filotto
    • Constructor Detail

      • DataDistributionByHash

        public DataDistributionByHash()
    • Method Detail

      • getAncestors

        protected List<String> getAncestors​(String dataId)
        Gives the list of all the name of the ancestors
        Specified by:
        getAncestors in class AbstractDataDistributionType
        Parameters:
        dataId - the id of the data to find/create
        Returns:
        the list of the ancestor names
      • useParametersOnLeafOnly

        protected boolean useParametersOnLeafOnly()
        Indicates whether or not the node type, the mixin types and the permissions have to be used on leaf node only.
        Specified by:
        useParametersOnLeafOnly in class AbstractDataDistributionType
        Returns:
        true if only the leaf node has to be created with the parameters false otherwise.