/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at legal-notices/CDDLv1_0.txt.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2008 Sun Microsystems, Inc.
*/
/**
* An interface for determining the default behavior of a property. A
* property exhibits default behavior when it has no values defined.
* There are four different types of default behavior:
* <ol>
* <li>there is no default behavior - e.g. leaving a "description"
* unset has no side-effects. This default behavior is represented
* using the {@link UndefinedDefaultBehaviorProvider} implementation
* <li>the property defaults to one or more real values of the
* property. This default behavior is represented using the
* {@link DefinedDefaultBehaviorProvider} implementation
* <li>the property defaults to some special behavior that cannot be
* represented using real property values. This default behavior is
* represented using the {@link AliasDefaultBehaviorProvider}
* implementation
* <li>the property inherits its values from property held in another
* managed object (e.g. the parent managed object). This default
* behavior is represented using the
* {@link AbsoluteInheritedDefaultBehaviorProvider} and
* {@link RelativeInheritedDefaultBehaviorProvider} implementations.
* </ol>
* An application can perform actions based on the type of the default
* behavior by implementing the {@link DefaultBehaviorProviderVisitor}
* interface.
*
* @param <T>
* The type of values represented by this provider.
*/
public abstract class DefaultBehaviorProvider<T> {
/**
* Creates a new default behavior provider.
*/
protected DefaultBehaviorProvider() {
// No implementation required.
}
/**
* Apply a visitor to this default behavior provider.
*
* @param <R>
* The return type of the visitor's methods.
* @param <P>
* The type of the additional parameters to the visitor's
* methods.
* @param v
* The default behavior visitor.
* @param p
* Optional additional visitor parameter.
* @return Returns a result as specified by the visitor.
*/
public abstract <R, P>
/**
* Performs any run-time initialization required by this default
* behavior provider. This may include resolving managed object
* paths and property names.
* <p>
* The default implementation is to do nothing.
*
* @throws Exception
* If this default behavior provider could not be
* initialized.
*/
// Default implementation is to do nothing.
}
}