Java Doc for HashBase.java in  » Database-DBMS » h2database » org » h2 » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » h2database » org.h2.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.h2.util.HashBase

All known Subclasses:   org.h2.util.ValueHashMap,  org.h2.util.IntIntHashMap,
HashBase
abstract public class HashBase (Code)
The base for other hash classes.


Field Summary
protected  intdeletedCount
     The number of deleted slots.
protected  intlen
     The number of slots in the table.
protected  intlevel
     The level.
protected  intmask
     The bit mask to get the index from the hash code.
protected  intsize
     The number of occupied slots, excluding the zero key (if any).
protected  booleanzeroKey
     Whether the zero key is used.

Constructor Summary
public  HashBase()
    

Method Summary
protected  voidcheckSizePut()
    
protected  voidcheckSizeRemove()
    
protected  intgetIndex(int hash)
    
abstract protected  voidrehash(int newLevel)
     Increase the size of the underlying table and re-distribute the elements.
protected  voidreset(int newLevel)
    
public  intsize()
    

Field Detail
deletedCount
protected int deletedCount(Code)
The number of deleted slots.



len
protected int len(Code)
The number of slots in the table.



level
protected int level(Code)
The level. The number of slots is 2 ^ level.



mask
protected int mask(Code)
The bit mask to get the index from the hash code.



size
protected int size(Code)
The number of occupied slots, excluding the zero key (if any).



zeroKey
protected boolean zeroKey(Code)
Whether the zero key is used.




Constructor Detail
HashBase
public HashBase()(Code)




Method Detail
checkSizePut
protected void checkSizePut() throws SQLException(Code)



checkSizeRemove
protected void checkSizeRemove() throws SQLException(Code)



getIndex
protected int getIndex(int hash)(Code)



rehash
abstract protected void rehash(int newLevel) throws SQLException(Code)
Increase the size of the underlying table and re-distribute the elements.
Parameters:
  newLevel - the new level



reset
protected void reset(int newLevel)(Code)



size
public int size()(Code)



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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