/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2008 Sun Microsystems, Inc.
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* Portions Copyright 2016 ForgeRock AS.
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*/
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package org.forgerock.opendj.config;
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/**
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* This interface is used to determine the "best match" managed object
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* definition in a definition hierarchy.
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* <p>
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* Managed object definitions, like Java classes, are arranged in an inheritance
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* hierarchy. When managed objects are decoded (e.g. from LDAP entries), the
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* driver implementation is provided with an
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* "expected managed object definition". However, the actual decoded managed
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* object is often an instance of a sub-type of this definition. For example,
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* when decoding a connection handler managed object, the actual type can never
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* be a connection handler because it is an abstract managed object type.
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* Instead, the decoded managed object must be a "concrete" sub-type: an LDAP
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* connection handler or JMX connection handler.
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* <p>
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* This resolution process is coordinated by the
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* <code>resolveManagedObjectDefinition</code> method in managed object
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* definitions, where it is passed a <code>DefinitionResolver</code>
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* implementation. The <code>resolveManagedObjectDefinition</code> method takes
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* care of recursively descending through the definition hierarchy and invokes
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* the {@link #matches(AbstractManagedObjectDefinition)} method against each
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* potential sub-type. It is the job of the resolver to indicate whether the
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* provided managed object definition is a candidate definition. For example,
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* the LDAP driver provides a definition resolver which uses the decoded LDAP
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* entry's object classes to determine the final appropriate managed object
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* definition.
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*/
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public interface DefinitionResolver {
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/**
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* Determines whether the provided managed object definition matches
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* this resolver's criteria.
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*
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* @param d
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* The managed object definition.
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* @return Returns <code>true</code> if the the provided managed object
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* definition matches this resolver's criteria.
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*/
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boolean matches(AbstractManagedObjectDefinition<?, ?> d);
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}
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