Interface IIndexProvider<T>

  • All Known Implementing Classes:
    CompoundQueryable, org.eclipse.equinox.internal.p2.metadata.index.IndexProvider

    public interface IIndexProvider<T>
    An index provider is typically an IQueryable.
    • Method Detail

      • getIndex

        IIndex<T> getIndex​(String memberName)
        Return an index optimized for producing candidates based on values for a memberName that denotes a member of the index type.
        memberName - A member of type T.
        An index or null if this provider does not support this index.
      • everything

        Iterator<T> everything()
        Return the iterator that delivers all rows that the target query should consider. This is used when no index can be found for any possible member.
        An iterator. Possibly empty but never null.
      • getManagedProperty

        Object getManagedProperty​(Object client,
                                  String memberName,
                                  Object key)
        Returns a property that this index manages on behalf of a client object. Examples of this is the properties that a profile manages for installable units.
        client - The client for which the property is managed. Typically an IU.
        memberName - The name of the managed properties, i.e. "profileProperties"
        key - The property key
        The managed property value or null if no value could be found.