oracle.webcache.invalidation.invalidators
Class ObjectInvalidator

java.lang.Object
  |
  +--oracle.webcache.invalidation.invalidators.InvalidatorElement
        |
        +--oracle.webcache.invalidation.invalidators.ObjectInvalidator

public class ObjectInvalidator

extends InvalidatorElement

This class represents the OBJECT element of the WCSInvalidation.dtd. It defines an invalidation item. Sub-classes of ObjectInvalidator (see Class Hierarchy, below) further define the invalidation item.

An invalidation item consists of a selector and an action. The selector selects an object (or group of objects) and the action specifies the actual invalidation action to be performed on the selected objects. There are two types of selectors: basic selectors and advanced selectors. A basic selector defines a single URI. An advanced selector defines a range of URIs.

Class Hierarchy:

                                     Invalidator
                                          |
ObjectInvalidator
                                          |
            ----------------------------------------------------
            |                             |                    |
  BasicSelectorInvalidator  AdvanceSelectorInvalidator  ActionInvalidator
                                          |
                                  -------------------
                                  |                 |
                          CookieInvalidator  HeaderInvalidator

See Also:

Invalidator, ObjectInvalidator, BasicSelectorInvalidator, AdvancedSelectorInvalidator, ActionInvalidator, CookieInvalidator, HeaderInvalidator

Constructor Summary

ObjectInvalidator()
Constructs an empty invalidation item.

Methods inherited from class oracle.webcache.invalidation.invalidators.InvalidatorElement

add, addAttribute, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectInvalidator

public ObjectInvalidator()

Constructs an empty invalidation item.