Package org.apache.commons.configuration2.io

Class FileHandler.AbstractUpdater

java.lang.Object

org.apache.commons.configuration2.io.FileHandler.AbstractUpdater

Enclosing class:

FileHandler

private abstract class FileHandler.AbstractUpdater
extends Object

An internal class that performs all update operations of the handler's FileLocator in a safe way even if there is concurrent access. This class implements anon-blocking algorithm for replacing the immutable FileLocator instance stored in an atomic reference by a manipulated instance. (If we already had lambdas, this could be done without a class in a more elegant way.)

Constructor Summary

Constructors

Modifier	Constructor	Description
private	AbstractUpdater()

Method Summary

Modifier and Type	Method	Description
void	update()	Performs an update of the enclosing file handler's FileLocator object.
protected abstract void	updateBuilder(FileLocator.FileLocatorBuilder builder)	Updates the passed in builder object to apply the manipulation to be performed by this Updater.

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractUpdater

private AbstractUpdater()

Method Details

update

public void update()

Performs an update of the enclosing file handler's FileLocator object.

updateBuilder

protected abstract void updateBuilder(FileLocator.FileLocatorBuilder builder)

Updates the passed in builder object to apply the manipulation to be performed by this Updater. The builder has been setup with the former content of the FileLocator to be manipulated.

Parameters:

builder - the builder for creating an updated FileLocator