Package org.opengrok.suggest.popular.impl.chronicle

Class ChronicleMapAdapter

java.lang.Object
org.opengrok.suggest.popular.impl.chronicle.ChronicleMapAdapter
All Implemented Interfaces:
AutoCloseable, PopularityCounter, PopularityMap
public class ChronicleMapAdapter extends Object implements PopularityMap
Adapter for ChronicleMap to expose only the necessary operations needed for most popular completion.

  • Constructor Summary

    Constructors
    Constructor
    Description
    ChronicleMapAdapter(String name, double averageKeySize, int entries, File file)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
    Closes the opened ChronicleMap.
    int
    get(org.apache.lucene.util.BytesRef key)
    For the term key returns the number the term was searched for.
    List<Map.Entry<org.apache.lucene.util.BytesRef,Integer>>
    getPopularityData(int page, int pageSize)
    Returns the popularity data sorted according to their value.
    void
    increment(org.apache.lucene.util.BytesRef key, int value)
    Increment data for the key by value.
    void
    removeIf(Predicate<org.apache.lucene.util.BytesRef> predicate)
    Removes the entries with key that meets the predicate.
    void
    resize(int newMapSize, double newMapAvgKey)
    Resizes the underlying ChronicleMap.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

  • Method Details

    • get

      public int get(org.apache.lucene.util.BytesRef key)
      For the term key returns the number the term was searched for.
      Specified by:
      get in interface PopularityCounter
      Parameters:
      key - the term to retrieve data for
      Returns:
      number of times the key was searched for

    • increment

      public void increment(org.apache.lucene.util.BytesRef key, int value)
      Increment data for the key by value.
      Specified by:
      increment in interface PopularityMap
      Parameters:
      key - term to increment data for
      value - positive value by which to increment the data

    • getPopularityData

      public List<Map.Entry<org.apache.lucene.util.BytesRef,Integer>> getPopularityData(int page, int pageSize)
      Returns the popularity data sorted according to their value.
      Specified by:
      getPopularityData in interface PopularityMap
      Parameters:
      page - which page of data to retrieve
      pageSize - number of results to return
      Returns:
      popularity data sorted according to their value

    • removeIf

      public void removeIf(Predicate<org.apache.lucene.util.BytesRef> predicate)
      Removes the entries with key that meets the predicate.
      Parameters:
      predicate - predicate which tests which entries should be removed

    • resize

      public void resize(int newMapSize, double newMapAvgKey) throws IOException
      Resizes the underlying ChronicleMap.
      Parameters:
      newMapSize - new entries count
      newMapAvgKey - new average key size
      Throws:
      IOException - if some error occurred

    • close

      public void close()
      Closes the opened ChronicleMap.
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface PopularityMap