Package org.apache.commons.configuration2.builder

Class ConfigurationBuilderEvent

java.lang.Object

java.util.EventObject

org.apache.commons.configuration2.event.Event

org.apache.commons.configuration2.builder.ConfigurationBuilderEvent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ConfigurationBuilderResultCreatedEvent

public class ConfigurationBuilderEvent
extends Event

A base event class for events generated by a ConfigurationBuilder.

Configuration builders can trigger a number of different events. All these events are derived from this class. This event base class does not define any additional properties. However, it defines that the event source must be a ConfigurationBuilder.

Since:

2.0

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final EventType<ConfigurationBuilderEvent>	ANY	The common super type for all events related to configuration builders.
static final EventType<ConfigurationBuilderEvent>	CONFIGURATION_REQUEST	The specific event type for configuration request events.
static final EventType<ConfigurationBuilderEvent>	RESET	The specific event type for builder reset events.

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
ConfigurationBuilderEvent(ConfigurationBuilder<?> source, EventType<? extends ConfigurationBuilderEvent> evType)	Creates a new instance of ConfigurationBuilderEvent and sets basic properties.

Method Summary

Modifier and Type	Method	Description
ConfigurationBuilder<?>	getSource()	Gets the source of this event as a ConfigurationBuilder.

Methods inherited from class org.apache.commons.configuration2.event.Event

appendPropertyRepresentation, getEventType, toString

Methods inherited from class java.lang.Object

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

Field Details

ANY

public static final EventType<ConfigurationBuilderEvent> ANY

The common super type for all events related to configuration builders.

RESET

public static final EventType<ConfigurationBuilderEvent> RESET

The specific event type for builder reset events. Events of this type are generated each time the builder's resetResult() method is called.

CONFIGURATION_REQUEST

public static final EventType<ConfigurationBuilderEvent> CONFIGURATION_REQUEST

The specific event type for configuration request events. Events of this type are generated each time the builder's getConfiguration() method is called (before the managed configuration is actually accessed and the lock is acquired). This gives listeners the opportunity to perform some checks which may invalidate the configuration, for example trigger a reload check. Note: A listener must not call the builder's getConfiguration() method - this will cause an infinite loop!

See Also:

• ConfigurationBuilder.getConfiguration()

Constructor Details

ConfigurationBuilderEvent

public ConfigurationBuilderEvent(ConfigurationBuilder<?> source,
 EventType<? extends ConfigurationBuilderEvent> evType)

Creates a new instance of ConfigurationBuilderEvent and sets basic properties.

Parameters:

source - the ConfigurationBuilder object which triggered this event (must not be null)

evType - the type of this event (must not be null)

Throws:

IllegalArgumentException - if a required parameter is null

Method Details

getSource

public ConfigurationBuilder<?> getSource()

Gets the source of this event as a ConfigurationBuilder.

Overrides:

getSource in class EventObject

Returns:

the ConfigurationBuilder which generated this event