com.imagero.util
Class LSPHashtable

java.lang.Object
  java.util.Dictionary
      java.util.Hashtable
          com.imagero.util.LSPHashtable

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

public class LSPHashtable

extends java.util.Hashtable

LSPHashtable.java LS = LimitedSize P = Priority Objects with low priority removed first if table is full

See Also:

Serialized Form

Nested Class Summary

protected class

LSPHashtable.PObject

Constructor Summary

LSPHashtable(int maxCapacity, int maxPriority)
Constructs a new, empty hashtable with a default initial capacity (11)

Method Summary

java.util.Enumeration	elements() Returns an enumeration of the values in this hashtable.
protected void	finalizeObject(LSPHashtable.PObject o)
java.lang.Object	get(java.lang.Object key) Returns the value to which the specified key is mapped in this hashtable.
int	getMaxPriority() max allowed priority for this LSPHastable
java.lang.Object	put(java.lang.Object key, java.lang.Object value) Maps the specified key to the specified value in this hashtable.
java.lang.Object	put(java.lang.Object key, java.lang.Object value, int p) Maps the specified key to the specified value in this hashtable.
void	putAll(java.util.Map t, int p) Copies all of the mappings from the specified Map to this Hashtable
java.lang.Object	remove(java.lang.Object key) Removes the key (and its corresponding value) from this hashtable.
void	removeAll(int p) remove all Objects with priority < p
protected LSPHashtable.PObject	removeP(java.lang.Object key)

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, entrySet, equals, hashCode, isEmpty, keys, keySet, putAll, rehash, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LSPHashtable

public LSPHashtable(int maxCapacity,
                    int maxPriority)

Constructs a new, empty hashtable with a default initial capacity (11)

Parameters:

maxCapacity - max number of mappings in this LSPHashtable

maxPriority - max number of used priorities for this LSPHashtable maxPriority=3 means that this LSPHashtable use priorities from 0 till 2

Method Detail

elements

public java.util.Enumeration elements()

Description copied from class: java.util.Hashtable

Returns an enumeration of the values in this hashtable. Use the Enumeration methods on the returned object to fetch the elements sequentially.

Returns:

an enumeration of the values in this hashtable.

See Also:

Enumeration, Hashtable.keys(), Hashtable.values(), Map

finalizeObject

protected void finalizeObject(LSPHashtable.PObject o)

get

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

Description copied from class: java.util.Hashtable

Returns the value to which the specified key is mapped in this hashtable.

Parameters:

key - a key in the hashtable.

Returns:

the value to which the key is mapped in this hashtable; null if the key is not mapped to any value in this hashtable.

See Also:

Hashtable.put(Object, Object)

getMaxPriority

public int getMaxPriority()

max allowed priority for this LSPHastable

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

Maps the specified key to the specified value in this hashtable. Neither the key nor the value can be null.

priority of this mapping is 0

Parameters:

key - the hashtable key.

value - the value.

Returns:

the previous value of the specified key in this hashtable, or null if it did not have one.

See Also:

Object.equals(Object), Hashtable.get(Object)

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value,
                            int p)

Maps the specified key to the specified value in this hashtable. Neither the key nor the value can be null.

Parameters:

p - priority of this mapping

putAll

public void putAll(java.util.Map t,
                   int p)

Copies all of the mappings from the specified Map to this Hashtable

Parameters:

p - priority

remove

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

Description copied from class: java.util.Hashtable

Removes the key (and its corresponding value) from this hashtable. This method does nothing if the key is not in the hashtable.

Parameters:

key - the key that needs to be removed.

Returns:

the value to which the key had been mapped in this hashtable, or null if the key did not have a mapping.

removeAll

public void removeAll(int p)

remove all Objects with priority < p

removeP

protected LSPHashtable.PObject removeP(java.lang.Object key)