File	Doc	Category	Size	Date	Package
FastHashMap.java	API Doc	Hibernate 3.2.5	9410	Thu Jun 03 11:31:32 BST 2004	org.hibernate.util

FastHashMap

• java.lang.Object

Fields Summary
private HashMap	map The underlying map we are managing.

Constructors Summary
public FastHashMap() Construct a an empty map. super(); this.map = new HashMap();
public FastHashMap(int capacity) Construct an empty map with the specified capacity. param capacity The initial capacity of the empty map super(); this.map = new HashMap(capacity);
public FastHashMap(int capacity, float factor) Construct an empty map with the specified capacity and load factor. param capacity The initial capacity of the empty map param factor The load factor of the new map super(); this.map = new HashMap(capacity, factor);
public FastHashMap(Map map) Construct a new map with the same mappings as the specified map. param map The map whose mappings are to be copied super(); this.map = new HashMap(map);

Methods Summary
public void	clear() Remove all mappings from this map. // --------------------------------------------------------- Public Methods synchronized (this) { HashMap temp = (HashMap) map.clone(); temp.clear(); map = temp; }
public java.lang.Object	clone() Return a shallow copy of this FastHashMap instance. The keys and values themselves are not copied. return new FastHashMap(map);
public boolean	containsKey(java.lang.Object key) Return true if this map contains a mapping for the specified key. param key Key to be searched for return map.containsKey(key);
public boolean	containsValue(java.lang.Object value) Return true if this map contains one or more keys mapping to the specified value. param value Value to be searched for return map.containsValue(value);
public java.util.Set	entrySet() Return a collection view of the mappings contained in this map. Each element in the returned collection is a Map.Entry. return map.entrySet();
public boolean	equals(java.lang.Object o) Compare the specified object with this list for equality. This implementation uses exactly the code that is used to define the list equals function in the documentation for the Map.equals method. param o Object to be compared to this list // Simple tests that require no synchronization if (o == this) return true; else if ( !(o instanceof Map) ) return false; Map mo = (Map) o; // Compare the two maps for equality if ( mo.size() != map.size() ) return false; java.util.Iterator i = map.entrySet().iterator(); while ( i.hasNext() ) { Map.Entry e = (Map.Entry) i.next(); Object key = e.getKey(); Object value = e.getValue(); if (value == null) { if ( !( mo.get(key) == null && mo.containsKey(key) ) ) return false; } else { if ( !value.equals( mo.get(key) ) ) return false; } } return true;
public java.lang.Object	get(java.lang.Object key) Return the value to which this map maps the specified key. Returns null if the map contains no mapping for this key, or if there is a mapping with a value of null. Use the containsKey() method to disambiguate these cases. param key Key whose value is to be returned return map.get(key);
public int	hashCode() Return the hash code value for this map. This implementation uses exactly the code that is used to define the list hash function in the documentation for the Map.hashCode method. int h = 0; java.util.Iterator i = map.entrySet().iterator(); while ( i.hasNext() ) h += i.next().hashCode(); return h;
public boolean	isEmpty() Return true if this map contains no mappings. return map.isEmpty();
public java.util.Set	keySet() Return a set view of the keys contained in this map. return map.keySet();
public java.lang.Object	put(java.lang.Object key, java.lang.Object value) Associate 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 and returned. param key The key with which the value is to be associated param value The value to be associated with this key synchronized (this) { HashMap temp = (HashMap) map.clone(); Object result = temp.put(key, value); map = temp; return (result); }
public void	putAll(java.util.Map in) Copy all of the mappings from the specified map to this one, replacing any mappings with the same keys. param in Map whose mappings are to be copied synchronized (this) { HashMap temp = (HashMap) map.clone(); temp.putAll(in); map = temp; }
public java.lang.Object	remove(java.lang.Object key) Remove any mapping for this key, and return any previously mapped value. param key Key whose mapping is to be removed synchronized (this) { HashMap temp = (HashMap) map.clone(); Object result = temp.remove(key); map = temp; return (result); }
public int	size() Return the number of key-value mappings in this map. return map.size();
public java.lang.String	toString() return map.toString();
public java.util.Collection	values() Return a collection view of the values contained in this map. return map.values();