Package org.mycore.datamodel.common

Interface MCRLinkTableInterface

All Known Implementing Classes:
MCRHIBLinkTableStore
public interface MCRLinkTableInterface
This interface is designed to choose the persistence for the link tables.
Version:
$Revision$ $Date$
Author:
Jens Kupferschmidt

  • Method Details

    • create

      void create(String from, String to, String type, String attr)
      The method create a new item in the datastore.
      Parameters:
      from - a string with the link ID MCRFROM
      to - a string with the link ID MCRTO
      type - a string with the link ID MCRTYPE
      attr - a string with the link ID MCRATTR

    • delete

      void delete(String from, String to, String type)
      The method remove a item for the from ID from the datastore.
      Parameters:
      from - a string with the link ID MCRFROM
      to - an array of strings with the link ID MCRTO
      type - an array of strings with the link ID MCRTYPE

    • countTo

      int countTo(String fromtype, String to, String type, String restriction)
      The method count the number of references with '%from%' and 'to' and optional 'type' and optional 'restriction%' values of the table.
      Parameters:
      fromtype - a substing in the from ID as String, it can be null
      to - the object ID as String, which is referenced
      type - the refernce type, it can be null
      restriction - a first part of the to ID as String, it can be null
      Returns:
      the number of references

    • getCountedMapOfMCRTO

      Map<String,Number> getCountedMapOfMCRTO(String mcrtoPrefix)
      The method returns a Map of all counted distinct references
      Returns:
      the result-map of (key,value)-pairs can be visualized as
      select count(mcrfrom) as value, mcrto as key from mcrlinkclass|mcrlinkhref where mcrto like mcrtoPrefix + '%' group by mcrto;

    • getSourcesOf

      Collection<String> getSourcesOf(String to, String type)
      Returns a List of all link sources of to and a special type
      Parameters:
      to - Destination-ID
      type - Link reference type, this can be null. Current types are classid, child, parent, reference and derivate.
      Returns:
      List of Strings (Source-IDs)

    • getDestinationsOf

      Collection<String> getDestinationsOf(String from, String type)
      Returns a List of all link destination of from and a special type
      Parameters:
      from - Source-ID
      type - Link reference type, this can be null. Current types are classid, child, parent, reference and derivate.
      Returns:
      List of Strings (Destination-IDs)