Package org.webharvest

Class AbstractRegistry<K,V>

java.lang.Object

org.webharvest.AbstractRegistry<K,V>

All Implemented Interfaces:

Registry<K,V>

Direct Known Subclasses:

ElementsRegistryImpl

public abstract class AbstractRegistry<K,V>
extends Object
implements Registry<K,V>

Abstract class implementing Registry interface. In most cases, in order to introduce Registry implementation it is enough to inherit from this class.

Since:

2.1.0-SNAPSHOT

Version:

%I%, %G%

Author:

Piotr Dyraga

See Also:

Registry

Constructor Summary

Constructors

Constructor	Description
AbstractRegistry()

Method Summary

Modifier and Type	Method	Description
void	bind(K name, V value)	Binds value under the given name.
Set<K>	listBound()	Lists names of all values bound.
V	lookup(K name)	Lookups value bound under the given name.
void	unbind(K name)	Unbinds name and the associated value from the registry.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractRegistry

public AbstractRegistry()

Method Detail

lookup

public V lookup(K name)

Lookups value bound under the given name. If no value is bound, then null is returned.

Specified by:

lookup in interface Registry<K,V>

Parameters:

name - name under which value is bound

Returns:

found value or null if none bound

bind

public void bind(K name,
                 V value)
          throws AlreadyBoundException

Binds value under the given name.

Specified by:

bind in interface Registry<K,V>

Parameters:

name - name under which value is going to be bound

value - bound value

Throws:

AlreadyBoundException - thrown if the given name is already bound to some value

unbind

public void unbind(K name)

Unbinds name and the associated value from the registry.

Specified by:

unbind in interface Registry<K,V>

Parameters:

name - name to be unbound

listBound

public Set<K> listBound()

Lists names of all values bound.

Specified by:

listBound in interface Registry<K,V>

Returns:

Set of all names registered; empty Set if registry is empty