Package org.eclipse.aether.util.graph.manager

Class MMap<K,V>

java.lang.Object

org.eclipse.aether.util.graph.manager.MMap<K,V>

Type Parameters:

K -

V -

public class MMap<K,V>
extends java.lang.Object

Warning: this is a special map-like construct that suits only and should be used only in this package! It has the following properties:

• memorizes once calculated hashCode
• once hashCode calculated, goes into "read only" mode (put method will fail)
• otherwise all the rest is same as for HashMap

This class is not a generic map class; only those methods are "protected" that are in use in this very package.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.HashMap<K,V>	delegate

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(K key)
static <K,V> MMap<K,V>	copy(MMap<K,V> orig)
static <K,V> MMap<K,java.util.Collection<V>>	copyWithKey(K key, MMap<K,java.util.Collection<V>> orig)
MMap<K,V>	done()
static <K,V> MMap<K,V>	empty()	Returns empty "done" (immutable) MMap.
static <K,V> MMap<K,V>	emptyNotDone()	Returns empty "not done" (mutable) MMap.
boolean	equals(java.lang.Object o)
V	get(K key)
int	hashCode()
V	put(K key, V value)

Methods inherited from class java.lang.Object

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

Field Detail

delegate

protected final java.util.HashMap<K,V> delegate

Method Detail

empty

public static <K,V> MMap<K,V> empty()

Returns empty "done" (immutable) MMap.

emptyNotDone

public static <K,V> MMap<K,V> emptyNotDone()

Returns empty "not done" (mutable) MMap.

copy

public static <K,V> MMap<K,V> copy(MMap<K,V> orig)

copyWithKey

public static <K,V> MMap<K,java.util.Collection<V>> copyWithKey(K key,
                                                                            MMap<K,java.util.Collection<V>> orig)

containsKey

public boolean containsKey(K key)

get

public V get(K key)

put

public V put(K key,
             V value)

done

public MMap<K,V> done()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object