Module org.apache.jena.dboe.index
Package org.apache.jena.dboe.index

Interface Index

All Superinterfaces:
org.apache.jena.atlas.lib.Closeable, Iterable<Record>, org.apache.jena.atlas.lib.Sync
All Known Subinterfaces:
RangeIndex
All Known Implementing Classes:
IndexLogger, IndexMap, IndexWrapper, RangeIndexLogger, RangeIndexWrapper
public interface Index extends Iterable<Record>, org.apache.jena.atlas.lib.Sync, org.apache.jena.atlas.lib.Closeable

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    check()
    Perform checks on this index
    void
    clear()
    Clear the index
    void
    close()
    Close the index - can not be used again through this object
    boolean
    contains(Record record)
    Return whether the index contains the record or not.
    boolean
    delete(Record record)
    Delete a record - Return true if a record was actually removed
    Record
    find(Record record)
    Find one record - and return the record actually in the index (may have a value part)
    RecordFactory
    getRecordFactory()
    Get the Record factory associated with this index
    boolean
    insert(Record record)
    Insert a record - return true if an insertion was actually needed
    boolean
    isEmpty()
    Answer whether the index is empty or not.
    Iterator<Record>
    iterator()
    Iterate over the whole index
    long
    size()
    Return size if known else return -1 : does not count the persistent storage

    Methods inherited from interface java.lang.Iterable

    forEach, spliterator

    Methods inherited from interface org.apache.jena.atlas.lib.Sync

    sync

  • Method Details

    • find

      Record find(Record record)
      Find one record - and return the record actually in the index (may have a value part)

    • contains

      boolean contains(Record record)
      Return whether the index contains the record or not.

    • insert

      boolean insert(Record record)
      Insert a record - return true if an insertion was actually needed

    • delete

      boolean delete(Record record)
      Delete a record - Return true if a record was actually removed

    • iterator

      Iterator<Record> iterator()
      Iterate over the whole index
      Specified by:
      iterator in interface Iterable<Record>

    • getRecordFactory

      RecordFactory getRecordFactory()
      Get the Record factory associated with this index

    • close

      void close()
      Close the index - can not be used again through this object
      Specified by:
      close in interface org.apache.jena.atlas.lib.Closeable

    • isEmpty

      boolean isEmpty()
      Answer whether the index is empty or not. May return false for unknown or meaningless

    • clear

      void clear()
      Clear the index

    • check

      void check()
      Perform checks on this index

    • size

      long size()
      Return size if known else return -1 : does not count the persistent storage