gzz.util
Class AbstractHashMap

java.lang.Object
  |
  +--gzz.util.AbstractHashMap

All Implemented Interfaces:

java.util.Map

Direct Known Subclasses:

AbstractFlatHashMap

public abstract class AbstractHashMap

extends java.lang.Object

implements java.util.Map

An abstract implementation of Map. In contrast to java.util.AbstractMap, subclasses of AbstractHashMap only need to implement get(), put(), size(), and keySet().

put(key, null) must remove any mapping for key. The Map must not support null values.

Constructor Summary

AbstractHashMap()

Method Summary

void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set	entrySet()
boolean	equals(java.lang.Object o) Very slow!
int	hashCode() Very slow!
boolean	isEmpty()
void	putAll(java.util.Map t)
java.lang.Object	remove(java.lang.Object key)
java.util.Collection	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

get, keySet, put, size

Constructor Detail

AbstractHashMap

public AbstractHashMap()

Method Detail

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map

remove

public java.lang.Object remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map

putAll

public void putAll(java.util.Map t)

Specified by:

putAll in interface java.util.Map

clear

public void clear()

Specified by:

clear in interface java.util.Map

values

public java.util.Collection values()

Specified by:

values in interface java.util.Map

entrySet

public java.util.Set entrySet()

Specified by:

entrySet in interface java.util.Map

equals

public boolean equals(java.lang.Object o)

Very slow!

Specified by:

equals in interface java.util.Map

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Very slow!

Specified by:

hashCode in interface java.util.Map

Overrides:

hashCode in class java.lang.Object