Java Doc for MapToShortKeyBooleanMapAdapter.java in  » Development » PCJ » bak » pcj » adapter » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » PCJ » bak.pcj.adapter 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   bak.pcj.map.AbstractShortKeyBooleanMap
      bak.pcj.adapter.MapToShortKeyBooleanMapAdapter

MapToShortKeyBooleanMapAdapter
public class MapToShortKeyBooleanMapAdapter extends AbstractShortKeyBooleanMap implements ShortKeyBooleanMap(Code)
This class represents adaptions of Java Collections Framework maps to primitive maps from short values to boolean values. The adapter is implemented as a wrapper around the map. Thus, changes to the underlying map are reflected by this map and vice versa.

Adapters from JCF maps to primitive map will fail if the JCF collection contains null keys/values or keys/values of the wrong class. However, adapters are not fast failing in the case that the underlying map should contain illegal keys or values. To implement fast failure would require every operation to check every key and value of the underlying map before doing anything. Instead validation methods are provided. They can be called using the assertion facility in the client code:

 MapToShortKeyBooleanMapAdapter s;
 ...
 assert s.validate();
 
or by letting the adapter throw an exception on illegal values:
 MapToShortKeyBooleanMapAdapter s;
 ...
 s.evalidate();  // Throws an exception on illegal values
 
Either way, validation must be invoked directly by the client code.
author:
   Søren Bak
version:
   1.3 21-08-2003 19:09
since:
   1.0


Field Summary
protected  BooleanlastValue
     The value corresponding to the last key found by containsKey().
protected  Mapmap
     The underlying map.

Constructor Summary
public  MapToShortKeyBooleanMapAdapter(Map map)
     Creates a new adaption to a map from short values to boolean values.
Parameters:
  map - the underlying map.
public  MapToShortKeyBooleanMapAdapter(Map map, boolean validate)
     Creates a new adaption to a map from short values to boolean values.

Method Summary
public  voidclear()
    
public  booleancontainsKey(short key)
    
public  booleancontainsValue(boolean value)
    
public  ShortKeyBooleanMapIteratorentries()
    
public  voidevalidate()
     Validates the map underlying this adapter and throws an exception if it is invalid.
public  booleanget(short key)
    
public  ShortSetkeySet()
    
public  booleanlget()
    
public  booleanput(short key, boolean value)
    
public  booleanremove(short key)
    
public  intsize()
    
public  booleantget(short key)
    
public  booleanvalidate()
     Indicates whether the underlying map is valid for this adapter.
public  BooleanCollectionvalues()
    

Field Detail
lastValue
protected Boolean lastValue(Code)
The value corresponding to the last key found by containsKey().



map
protected Map map(Code)
The underlying map.




Constructor Detail
MapToShortKeyBooleanMapAdapter
public MapToShortKeyBooleanMapAdapter(Map map)(Code)
Creates a new adaption to a map from short values to boolean values.
Parameters:
  map - the underlying map. This map mustconsist of keys of classShort Short.values of classBoolean Boolean. Otherwise aClassCastException ClassCastExceptionwill be thrown by some methods.
throws:
  NullPointerException - if map is null.



MapToShortKeyBooleanMapAdapter
public MapToShortKeyBooleanMapAdapter(Map map, boolean validate)(Code)
Creates a new adaption to a map from short values to boolean values. The map to adapt is optionally validated.
Parameters:
  map - the underlying map. This map mustconsist of keys of classShort Short.values of classBoolean Boolean. Otherwise aClassCastException ClassCastExceptionwill be thrown by some methods.
Parameters:
  validate - indicates whether map shouldbe checked for illegal values.
throws:
  NullPointerException - if map is null.
throws:
  IllegalStateException - if validate is true andmap contains a null key/value,a key that is not of classShort Short,or a value that is not of classBoolean Boolean.




Method Detail
clear
public void clear()(Code)



containsKey
public boolean containsKey(short key)(Code)



containsValue
public boolean containsValue(boolean value)(Code)



entries
public ShortKeyBooleanMapIterator entries()(Code)



evalidate
public void evalidate()(Code)
Validates the map underlying this adapter and throws an exception if it is invalid. For the underlying map to be valid, it can only contain Short Short keys, no null keys/values, and only Boolean Boolean values.
throws:
  IllegalStateException - if the underlying map is invalid.



get
public boolean get(short key)(Code)



keySet
public ShortSet keySet()(Code)



lget
public boolean lget()(Code)



put
public boolean put(short key, boolean value)(Code)



remove
public boolean remove(short key)(Code)



size
public int size()(Code)



tget
public boolean tget(short key)(Code)



validate
public boolean validate()(Code)
Indicates whether the underlying map is valid for this adapter. For the underlying map to be valid, it can only contain Short Short keys, no null keys/values, and only Boolean Boolean values. true if the underlying map isvalid; returns false otherwise.



values
public BooleanCollection values()(Code)



Methods inherited from bak.pcj.map.AbstractShortKeyBooleanMap
public void clear()(Code)(Java Doc)
public boolean containsKey(short key)(Code)(Java Doc)
public boolean containsValue(boolean value)(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
public boolean get(short key)(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
public boolean isEmpty()(Code)(Java Doc)
public void putAll(ShortKeyBooleanMap map)(Code)(Java Doc)
public boolean remove(short key)(Code)(Java Doc)
public int size()(Code)(Java Doc)
public boolean tget(short key)(Code)(Java Doc)
public String toString()(Code)(Java Doc)
public void trimToSize()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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