org.apache.felix.ipojo.util

Class InstanceConfigurationSource

java.lang.Object

org.apache.felix.ipojo.util.InstanceConfigurationSource

All Implemented Interfaces:

ContextSource

public class InstanceConfigurationSource
extends java.lang.Object
implements ContextSource

A context source giving access to system properties.

Constructor Summary

Constructors

Constructor and Description
InstanceConfigurationSource(java.util.Dictionary<java.lang.String,java.lang.Object> configuration)

Method Summary

Modifier and Type	Method and Description
java.util.Dictionary	getContext() Gets the entire context.
java.lang.Object	getProperty(java.lang.String property) Gets the current value of the given property.
void	reconfigure(java.util.Dictionary<java.lang.String,java.lang.Object> newConfiguration) The instance is reconfigured.
void	registerContextListener(ContextListener listener, java.lang.String[] properties) Registers a context listener on the given set of properties.
void	unregisterContextListener(ContextListener listener) Unregisters the given context listener.

Methods inherited from class java.lang.Object

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

Constructor Detail

InstanceConfigurationSource

public InstanceConfigurationSource(java.util.Dictionary<java.lang.String,java.lang.Object> configuration)

Method Detail

reconfigure

public void reconfigure(java.util.Dictionary<java.lang.String,java.lang.Object> newConfiguration)

The instance is reconfigured. Changes are computed by comparing the old and new configuration.

Parameters:

newConfiguration - the new instance configuration

getProperty

public java.lang.Object getProperty(java.lang.String property)

Description copied from interface: ContextSource

Gets the current value of the given property.

Specified by:

getProperty in interface ContextSource

Parameters:

property - property name

Returns:

the property value (null if unknown)

getContext

public java.util.Dictionary getContext()

Description copied from interface: ContextSource

Gets the entire context.

Specified by:

getContext in interface ContextSource

Returns:

the dictionary [Property, Value]

registerContextListener

public void registerContextListener(ContextListener listener,
                                    java.lang.String[] properties)

Description copied from interface: ContextSource

Registers a context listener on the given set of properties. The listener will be notified of every changes made on monitored properties.

Specified by:

registerContextListener in interface ContextSource

Parameters:

listener - the context listener to register.

properties - property set monitored by the listener.

unregisterContextListener

public void unregisterContextListener(ContextListener listener)

Description copied from interface: ContextSource

Unregisters the given context listener.

Specified by:

unregisterContextListener in interface ContextSource

Parameters:

listener - the listener to unregister.