Package com.j_spaces.core.cache

Interface IExtendedIndexScanPositioner<K,T>

All Known Subinterfaces:
IExtendedEntriesIndex<K,V>, IExtendedIndex<K,V>
All Known Implementing Classes:
ExtendedIndexHandler, FifoGroupsExtendedIndexHandler, TemplatesExtendedIndexHandler
public interface IExtendedIndexScanPositioner<K,T>
TODO add Javadoc
Since:
7.5
Version:
1.0
Author:
Yechiel Fefer

  • Method Summary

    Modifier and Type
    Method
    Description
    IScanListIterator<T>
    establishScan(K startPos, short relation, K endPos, boolean endPosInclusive)
    establish a scan according to the relation given and startPos : the start-scan object , null means scan all values.
    IScanListIterator<T>
    establishScan(K startPos, short relation, K endPos, boolean endPosInclusive, boolean ordered)
    establish a scan according to the relation given and startPos : the start-scan object , null means scan all values.

  • Method Details

    • establishScan

      IScanListIterator<T> establishScan(K startPos, short relation, K endPos, boolean endPosInclusive)
      establish a scan according to the relation given and startPos : the start-scan object , null means scan all values. The relation is from com.j_spaces.client.TemplateMatchCodes: LT, LE, GT, GE (other codes are not relevant) endPos- key up to (or null if no limit in index) endPosInclusive : is the endPos up to (or down to) and including ? returns an IOrderedIndexScan object which enables scanning the ordered index, Null if no relevant elements to scan

    • establishScan

      IScanListIterator<T> establishScan(K startPos, short relation, K endPos, boolean endPosInclusive, boolean ordered)
      establish a scan according to the relation given and startPos : the start-scan object , null means scan all values. The relation is from com.j_spaces.client.TemplateMatchCodes: LT, LE, GT, GE (other codes are not relevant) endPos- key up to (or null if no limit in index) endPosInclusive : is the endPos up to (or down to) and including ? ordered - according to the condition. GT, GE ==> ascending, LT, LE =====> descending. returns an IOrderedIndexScan object which enables scanning the ordered index, Null if no relevant elements to scan