org.quilt.reg
Class Registry

java.lang.Object
  |
  +--org.quilt.reg.Registry

Direct Known Subclasses:

QuiltRegistry

public class Registry

extends java.lang.Object

A registry for storing Quilt run-time options. The registry stores key-value pairs, where the key takes the form of an array of Strings. The registry is sorted, but XXX there is currently no support for sequential access or partial-key access.

This class is not thread-safe.

Author:

Jim Dixon

Constructor Summary

Registry()
No-arg constructor.

Method Summary

void	clear() Remove all elements from the registry.
boolean	containsKey(java.lang.String[] key)
java.lang.Object	get(java.lang.String[] key) Get an object from the registry.
boolean	isEmpty()
java.util.Set	keySet() XXX An overly powerful method.
java.lang.Object	put(java.lang.String[] key, java.lang.Object value) Add an object to the registry, overwriting any existing value.
java.lang.Object	remove(java.lang.String[] key) Remove an item from the registry.
int	size()
java.lang.String[]	splitClassName(java.lang.String name) Convert a class or method name into a String array.

Methods inherited from class java.lang.Object

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

Constructor Detail

Registry

public Registry()

No-arg constructor.

Method Detail

clear

public final void clear()

Remove all elements from the registry.

containsKey

public final boolean containsKey(java.lang.String[] key)

Returns:

True if there is an item under this key in the registry.

get

public final java.lang.Object get(java.lang.String[] key)

Get an object from the registry.

Parameters:

key - Array of strings, the unique key.

Returns:

value Object stored under the key, or null if none.

isEmpty

public final boolean isEmpty()

Returns:

True if there are no elements in the registry.

keySet

public java.util.Set keySet()

XXX An overly powerful method.

Returns:

The (editable) set of keys.

put

public final java.lang.Object put(java.lang.String[] key,
                                  java.lang.Object value)

Add an object to the registry, overwriting any existing value.

Parameters:

key - Array of Strings, the unique key. Must not be null.

value - Object to be stored under this key.

Returns:

Old value if there was one, null otherwise.

remove

public final java.lang.Object remove(java.lang.String[] key)

Remove an item from the registry.

Parameters:

key - Array of Strings.

Returns:

The value associated with the key, or null if none.

size

public final int size()

Returns:

Number of items in the registry.

splitClassName

public final java.lang.String[] splitClassName(java.lang.String name)

Convert a class or method name into a String array.

Returns:

A string array containing the fields of the name.