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

Class IndexMap

java.lang.Object
org.apache.jena.dboe.index.IndexMap
All Implemented Interfaces:
Iterable<Record>, org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sync, Index
public class IndexMap extends Object implements Index
A simple implementation of Index for testing

  • Constructor Summary

    Constructors
    Constructor
    Description
    IndexMap(RecordFactory recordFactory)
     

  • 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
    void
    sync()
     

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface java.lang.Iterable

    forEach, spliterator

  • Constructor Details

  • Method Details

    • find

      public Record find(Record record)
      Description copied from interface: Index
      Find one record - and return the record actually in the index (may have a value part)
      Specified by:
      find in interface Index

    • contains

      public boolean contains(Record record)
      Description copied from interface: Index
      Return whether the index contains the record or not.
      Specified by:
      contains in interface Index

    • insert

      public boolean insert(Record record)
      Description copied from interface: Index
      Insert a record - return true if an insertion was actually needed
      Specified by:
      insert in interface Index

    • delete

      public boolean delete(Record record)
      Description copied from interface: Index
      Delete a record - Return true if a record was actually removed
      Specified by:
      delete in interface Index

    • iterator

      public Iterator<Record> iterator()
      Description copied from interface: Index
      Iterate over the whole index
      Specified by:
      iterator in interface Index
      Specified by:
      iterator in interface Iterable<Record>

    • getRecordFactory

      public RecordFactory getRecordFactory()
      Description copied from interface: Index
      Get the Record factory associated with this index
      Specified by:
      getRecordFactory in interface Index

    • isEmpty

      public boolean isEmpty()
      Description copied from interface: Index
      Answer whether the index is empty or not. May return false for unknown or meaningless
      Specified by:
      isEmpty in interface Index

    • clear

      public void clear()
      Description copied from interface: Index
      Clear the index
      Specified by:
      clear in interface Index

    • check

      public void check()
      Description copied from interface: Index
      Perform checks on this index
      Specified by:
      check in interface Index

    • size

      public long size()
      Description copied from interface: Index
      Return size if known else return -1 : does not count the persistent storage
      Specified by:
      size in interface Index

    • sync

      public void sync()
      Specified by:
      sync in interface org.apache.jena.atlas.lib.Sync

    • close

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