Package org.elasticsearch.common.util

Class LongObjectPagedHashMap<T>

java.lang.Object
org.elasticsearch.common.util.LongObjectPagedHashMap<T>
All Implemented Interfaces:
java.io.Closeable, java.lang.AutoCloseable, java.lang.Iterable<LongObjectPagedHashMap.Cursor<T>>, Releasable
public class LongObjectPagedHashMap<T>
extends java.lang.Object
implements java.lang.Iterable<LongObjectPagedHashMap.Cursor<T>>
A hash table from native longs to objects. This implementation resolves collisions using open-addressing and does not support null values. This class is not thread-safe.

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Class Description
    static class  LongObjectPagedHashMap.Cursor<T>  

  • Constructor Summary

    Constructors 
    Constructor Description
    LongObjectPagedHashMap​(long capacity, float maxLoadFactor, BigArrays bigArrays)  
    LongObjectPagedHashMap​(long capacity, BigArrays bigArrays)  

  • Method Summary

    Modifier and Type Method Description
    long capacity()
    Return the number of allocated slots to store this hash table.
    void close()  
    T get​(long key)
    Get the value that is associated with key or null if key was not present in the hash table.
    protected void grow()  
    java.util.Iterator<LongObjectPagedHashMap.Cursor<T>> iterator()  
    T put​(long key, T value)
    Put this new (key, value) pair into this hash table and return the value that was previously associated with key or null in case of an insertion.
    T remove​(long key)
    Remove the entry which has this key in the hash table and return the associated value or null if there was no entry associated with this key.
    protected void removeAndAdd​(long index)
    Remove the entry at the given index and add it back
    protected void resize​(long capacity)
    Resize to the given capacity.
    long size()
    Return the number of longs in this hash table.
    protected boolean used​(long bucket)  

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface java.lang.Iterable

    forEach, spliterator

  • Constructor Details

  • Method Details

    • get

      public T get​(long key)
      Get the value that is associated with key or null if key was not present in the hash table.

    • put

      public T put​(long key, T value)
      Put this new (key, value) pair into this hash table and return the value that was previously associated with key or null in case of an insertion.

    • remove

      public T remove​(long key)
      Remove the entry which has this key in the hash table and return the associated value or null if there was no entry associated with this key.

    • iterator

      public java.util.Iterator<LongObjectPagedHashMap.Cursor<T>> iterator()
      Specified by:
      iterator in interface java.lang.Iterable<T>

    • close

      public void close()
      Specified by:
      close in interface java.lang.AutoCloseable
      Specified by:
      close in interface java.io.Closeable
      Specified by:
      close in interface Releasable

    • resize

      protected void resize​(long capacity)
      Resize to the given capacity.

    • used

      protected boolean used​(long bucket)

    • removeAndAdd

      protected void removeAndAdd​(long index)
      Remove the entry at the given index and add it back

    • capacity

      public long capacity()
      Return the number of allocated slots to store this hash table.

    • size

      public long size()
      Return the number of longs in this hash table.

    • grow

      protected final void grow()