org.cdlib.xtf.lazyTree
Class LazyHashMap

Object
  extended by LazyHashMap
All Implemented Interfaces:
Map

public class LazyHashMap
extends Object
implements Map

A very light wrapper that puts a Map interface over a DiskHashReader for use with lazy keys.

Author:
Martin Haye

Nested Class Summary
 
Nested classes/interfaces inherited from interface Map
Map.Entry<K,V>
 
Field Summary
private  LazyDocument doc
           
private  DiskHashReader reader
           
 
Constructor Summary
LazyHashMap(LazyDocument doc, DiskHashReader reader)
          Construct a hash map to read keys from a DiskHashReader
 
Method Summary
 void clear()
           
 boolean containsKey(Object key)
           
 boolean containsValue(Object value)
           
 Set entrySet()
           
 Object get(Object key)
          Get the list of nodes associated with a given key.
 boolean isEmpty()
           
 Set keySet()
           
 Object put(Object key, Object value)
           
 void putAll(Map t)
           
 Object remove(Object key)
           
 int size()
           
 Collection values()
           
 
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface Map
equals, hashCode
 

Field Detail

doc

private LazyDocument doc

reader

private DiskHashReader reader
Constructor Detail

LazyHashMap

public LazyHashMap(LazyDocument doc,
                   DiskHashReader reader)
Construct a hash map to read keys from a DiskHashReader

Method Detail

get

public Object get(Object key)
Get the list of nodes associated with a given key.

Specified by:
get in interface Map

clear

public void clear()
Specified by:
clear in interface Map

containsKey

public boolean containsKey(Object key)
Specified by:
containsKey in interface Map

containsValue

public boolean containsValue(Object value)
Specified by:
containsValue in interface Map

entrySet

public Set entrySet()
Specified by:
entrySet in interface Map

isEmpty

public boolean isEmpty()
Specified by:
isEmpty in interface Map

keySet

public Set keySet()
Specified by:
keySet in interface Map

put

public Object put(Object key,
                  Object value)
Specified by:
put in interface Map

putAll

public void putAll(Map t)
Specified by:
putAll in interface Map

remove

public Object remove(Object key)
Specified by:
remove in interface Map

size

public int size()
Specified by:
size in interface Map

values

public Collection values()
Specified by:
values in interface Map