Package org.apache.commons.configuration2.builder

Class BuilderConfigurationWrapperFactory.BuilderConfigurationWrapperInvocationHandler

java.lang.Object

org.apache.commons.configuration2.builder.BuilderConfigurationWrapperFactory.BuilderConfigurationWrapperInvocationHandler

All Implemented Interfaces:

InvocationHandler

Enclosing class:

BuilderConfigurationWrapperFactory

private static final class BuilderConfigurationWrapperFactory.BuilderConfigurationWrapperInvocationHandler
extends Object
implements InvocationHandler

A specialized InvocationHandler implementation for wrapper configurations. Here the logic of accessing a wrapped builder is implemented.

Field Summary

Fields

Modifier and Type	Field	Description
private final ConfigurationBuilder<? extends ImmutableConfiguration>	builder	The wrapped builder.
private final BuilderConfigurationWrapperFactory.EventSourceSupport	eventSourceSupport	The level of EventSource support.

Constructor Summary

Constructors

Constructor	Description
BuilderConfigurationWrapperInvocationHandler(ConfigurationBuilder<? extends ImmutableConfiguration> wrappedBuilder, BuilderConfigurationWrapperFactory.EventSourceSupport evSrcSupport)	Creates a new instance of BuilderConfigurationWrapperInvocationHandler.

Method Summary

Modifier and Type	Method	Description
private Object	handleConfigurationInvocation(Method method, Object[] args)	Handles a method invocation on the associated builder's configuration object.
private Object	handleEventSourceInvocation(Method method, Object... args)	Handles a method invocation on the EventSource interface.
Object	invoke(Object proxy, Method method, Object[] args)	Handles method invocations.

Methods inherited from class java.lang.Object

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

Field Details

builder

private final ConfigurationBuilder<? extends ImmutableConfiguration> builder

The wrapped builder.

eventSourceSupport

private final BuilderConfigurationWrapperFactory.EventSourceSupport eventSourceSupport

The level of EventSource support.

Constructor Details

BuilderConfigurationWrapperInvocationHandler

public BuilderConfigurationWrapperInvocationHandler(ConfigurationBuilder<? extends ImmutableConfiguration> wrappedBuilder,
 BuilderConfigurationWrapperFactory.EventSourceSupport evSrcSupport)

Creates a new instance of BuilderConfigurationWrapperInvocationHandler.

Parameters:

wrappedBuilder - the wrapped builder

evSrcSupport - the level of EventSource support

Method Details

handleConfigurationInvocation

private Object handleConfigurationInvocation(Method method,
 Object[] args)
                                      throws ReflectiveOperationException,
ConfigurationException

Handles a method invocation on the associated builder's configuration object.

Parameters:

method - the method to be invoked

args - method arguments

Returns:

the return value of the method

Throws:

Exception - if an error occurs

ReflectiveOperationException

ConfigurationException

handleEventSourceInvocation

private Object handleEventSourceInvocation(Method method,
 Object... args)
                                    throws ReflectiveOperationException

Handles a method invocation on the EventSource interface. This method evaluates the current EventSourceSupport object in order to find the appropriate target for the invocation.

Parameters:

method - the method to be invoked

args - method arguments

Returns:

the return value of the method

Throws:

ReflectiveOperationException - if an error occurs

invoke

public Object invoke(Object proxy,
 Method method,
 Object[] args)
              throws ReflectiveOperationException,
ConfigurationException

Handles method invocations. This implementation handles methods of two different interfaces:

• Methods from the EventSource interface are handled according to the current support level.
• Other method calls are delegated to the builder's configuration object.

Specified by:

invoke in interface InvocationHandler

Parameters:

proxy - the proxy object

method - the method to be invoked

args - method arguments

Returns:

the return value of the method

Throws:

ReflectiveOperationException - if an error occurs

ConfigurationException - if an error occurs