org.h2.util

Class ValueHashMap<V>

java.lang.Object

org.h2.util.HashBase

org.h2.util.ValueHashMap<V>

Type Parameters:

V - the value type

public class ValueHashMap<V>
extends HashBase

This hash map supports keys of type Value.

Field Summary

Fields inherited from class org.h2.util.HashBase

deletedCount, len, level, mask, size, zeroKey

Constructor Summary

Constructors

Constructor and Description
ValueHashMap()

Method Summary

Modifier and Type	Method and Description
V	get(Value key) Get the value for this key.
java.util.ArrayList<Value>	keys() Get the list of keys.
static <T> ValueHashMap<T>	newInstance() Create a new value hash map.
void	put(Value key, V value) Add or update a key value pair.
protected void	rehash(int newLevel) Increase the size of the underlying table and re-distribute the elements.
void	remove(Value key) Remove a key value pair.
protected void	reset(int newLevel) Clear the map and reset the level to the specified value.
java.util.ArrayList<V>	values() Get the list of values.

Methods inherited from class org.h2.util.HashBase

checkSizeRemove, getIndex, size

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueHashMap

public ValueHashMap()

Method Detail

newInstance

public static <T> ValueHashMap<T> newInstance()

Create a new value hash map.

Returns:

the object

reset

protected void reset(int newLevel)

Description copied from class: HashBase

Clear the map and reset the level to the specified value.

Overrides:

reset in class HashBase

Parameters:

newLevel - the new level

rehash

protected void rehash(int newLevel)

Description copied from class: HashBase

Increase the size of the underlying table and re-distribute the elements.

Specified by:

rehash in class HashBase

Parameters:

newLevel - the new level

put

public void put(Value key,
                V value)

Add or update a key value pair.

Parameters:

key - the key

value - the new value

remove

public void remove(Value key)

Remove a key value pair.

Parameters:

key - the key

get

public V get(Value key)

Get the value for this key. This method returns null if the key was not found.

Parameters:

key - the key

Returns:

the value for the given key

keys

public java.util.ArrayList<Value> keys()

Get the list of keys.

Returns:

all keys

values

public java.util.ArrayList<V> values()

Get the list of values.

Returns:

all values