de.uni_hildesheim.sse.monitoring.runtime.utils

Class LongHashMap<T>

java.lang.Object

de.uni_hildesheim.sse.monitoring.runtime.utils.AbstractLongHashMap

de.uni_hildesheim.sse.monitoring.runtime.utils.LongHashMap<T>

Type Parameters:

T - the value type

Direct Known Subclasses:

CleaningLongHashMap

public class LongHashMap<T>
extends AbstractLongHashMap

A hash map mapping long values to objects.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LongHashMap.MapElement<V> Implements a map element storing the contents of the buckets.

Nested classes/interfaces inherited from class de.uni_hildesheim.sse.monitoring.runtime.utils.AbstractLongHashMap

AbstractLongHashMap.DelegatingMapIterator<T>, AbstractLongHashMap.MapIterator

Field Summary

Fields inherited from class de.uni_hildesheim.sse.monitoring.runtime.utils.AbstractLongHashMap

DEFAULT_CAPACITY, DEFAULT_LOADFACTOR, MAXIMUM_CAPACITY

Constructor Summary

Constructors

Constructor and Description
LongHashMap() Constructs an empty instance with the default initial capacity and the default load factor.
LongHashMap(int initialCapacity) Constructs an empty instance with the given initial capacity and the default load factor.
LongHashMap(int initialCapacity, float loadFactor) Constructs an empty instance with the given initial capacity and the given load factor.
LongHashMap(LongHashMap<T> map) Constructs a new LongHashMap with the same mappings as the specified Map.

Method Summary

Modifier and Type	Method and Description
protected LongHashMap.MapElement<T>	create(long key, java.lang.Object value) Creates an element.
java.lang.Iterable<LongHashMap.MapElement<T>>	entries() Returns an iterator over the entries stored in this map.
T	get(long key) Returns the value to which the specified key is mapped in this identity hash map, or null if the map contains no mapping for this key.
T	put(long key, T value) Associates the specified value with the specified key in this map.
void	putAll(AbstractLongHashMap map) Puts all the keys and values in the specified hash map into this hash map.
T	remove(long key) Removes the mapping for this key from this map if present.
java.lang.Iterable<T>	values() Returns an iterator over the values stored in this map.

Methods inherited from class de.uni_hildesheim.sse.monitoring.runtime.utils.AbstractLongHashMap

clear, containsKey, elements, getCapacity, getElement, getLoadFactor, getObjectCounter, isEmpty, keySet, putElement, removeElement, removeNotIn, setRehash, size

Methods inherited from class java.lang.Object

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

Constructor Detail

LongHashMap

public LongHashMap()

Constructs an empty instance with the default initial capacity and the default load factor.

LongHashMap

public LongHashMap(int initialCapacity)

Constructs an empty instance with the given initial capacity and the default load factor.

Parameters:

initialCapacity - The initial capacity for this hash map.

LongHashMap

public LongHashMap(int initialCapacity,
                   float loadFactor)

Constructs an empty instance with the given initial capacity and the given load factor.

Parameters:

initialCapacity - The initial capacity for this hash map.

loadFactor - The load factor for this hash map.

LongHashMap

public LongHashMap(LongHashMap<T> map)

Constructs a new LongHashMap with the same mappings as the specified Map. The LongHashMap is created with default load factor and an initial capacity sufficient to hold the mappings in the specified Map.

Parameters:

map - The map whose mappings are to be placed in this map.

Throws:

java.lang.NullPointerException - if the specified map is null.

Method Detail

putAll

public void putAll(AbstractLongHashMap map)

Puts all the keys and values in the specified hash map into this hash map.

Specified by:

putAll in class AbstractLongHashMap

Parameters:

map - the source map

values

public java.lang.Iterable<T> values()

Returns an iterator over the values stored in this map.

Returns:

the iterator

Since:

1.00

entries

public java.lang.Iterable<LongHashMap.MapElement<T>> entries()

Returns an iterator over the entries stored in this map.

Returns:

the iterator

Since:

1.00

put

public T put(long key,
             T value)

Associates the specified value with the specified key in this map. If the map previously contained a mapping for this key, the old value is replaced.

Parameters:

key - The key with which the specified value is to be associated.

value - The value to be associated with the specified key.

Returns:

Previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the LongHashMap previously associated null with the specified key.

get

public T get(long key)

Returns the value to which the specified key is mapped in this identity hash map, or null if the map contains no mapping for this key. A return value of null does not necessarily indicate that the map contains no mapping for the key; it is also possible that the map explicitly maps the key to null. The containsKey method may be used to distinguish these two cases.

Parameters:

key - The key whose associated value is to be returned.

Returns:

The value to which this map maps the specified key, or null if the map contains no mapping for this key.

remove

public T remove(long key)

Removes the mapping for this key from this map if present.

Parameters:

key - The key whose mapping is to be removed from the map.

Returns:

Previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the map previously associated null with the specified key.

create

protected LongHashMap.MapElement<T> create(long key,
                                           java.lang.Object value)

Creates an element.

Overrides:

create in class AbstractLongHashMap

Parameters:

key - the hash key of the element

value - the value to be stored

Returns:

the new element

Since:

1.00