/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2013 ForgeRock AS.
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*/
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package org.opends.server.config.spi;
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import java.util.List;
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import java.util.Set;
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import org.forgerock.opendj.ldap.DN;
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import org.forgerock.opendj.ldap.Entry;
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/**
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* Provides configuration entries and listener registration on the entries.
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*/
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public interface ConfigurationRepository {
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/**
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* Returns the set of DNs of children of the entry corresponding to the
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* provided DN. .
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*
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* @param dn
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* DN of a configuration entry.
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* @return the set of DN of children of the corresponding entry
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* @throws ConfigException
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* If a problem occurs during retrieval.
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*/
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Set<DN> getChildren(DN dn) throws ConfigException;
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/**
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* Returns the configuration entry for the provided DN.
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*
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* @param dn
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* DN of the configuration entry
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* @return the config entry
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* @throws ConfigException
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* If a problem occurs while trying to retrieve the requested
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* entry.
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*/
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Entry getEntry(DN dn) throws ConfigException;
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/**
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* Checks if the provided DN corresponds to a configuration entry.
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*
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* @param dn
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* DN of the configuration entry
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* @return {@code true} if and only if there is a configuration entry with
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* this DN
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* @throws ConfigException
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* If a problem occurs.
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*/
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boolean hasEntry(DN dn) throws ConfigException;
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/**
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* Registers the provided add listener so that it will be notified if any
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* new entries are added immediately below the entry corresponding to the
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* provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @param listener
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* The add listener that should be registered.
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*/
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public void registerAddListener(DN dn, ConfigAddListener listener);
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/**
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* Registers the provided delete listener so that it will be notified if any
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* entries are deleted immediately below the entry corresponding to the
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* provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @param listener
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* The delete listener that should be registered.
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*/
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public void registerDeleteListener(DN dn, ConfigDeleteListener listener);
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/**
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* Registers the provided change listener so that it will be notified of any
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* changes to the entry corrresponding to provided DN. No check will be made
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* to determine whether the provided listener is already registered.
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*
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* @param dn
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* The DN of the configuration entry.
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* @param listener
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* The change listener that should be registered.
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*/
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public void registerChangeListener(DN dn, ConfigChangeListener listener);
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/**
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* Deregisters the provided add listener so that it will no longer be
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* notified if any new entries are added immediately below the entry
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* corresponding to the provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @param listener
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* The add listener that should be deregistered.
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*/
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public void deregisterAddListener(DN dn, ConfigAddListener listener);
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/**
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* Deregisters the provided delete listener so that it will no longer be
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* notified if any entries are deleted immediately below the entry
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* corresponding to the provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @param listener
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* The delete listener that should be deregistered.
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*/
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public void deregisterDeleteListener(DN dn, ConfigDeleteListener listener);
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/**
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* Attempts to deregister the provided change listener with the provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @param listener
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* The change listener to deregister with this DN.
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* @return <CODE>true</CODE> if the specified listener was deregistered, or
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* <CODE>false</CODE> if it was not.
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*/
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public boolean deregisterChangeListener(DN dn, ConfigChangeListener listener);
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/**
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* Retrieves the add listeners that have been registered with the provided
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* DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @return The list of add listeners.
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*/
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public List<ConfigAddListener> getAddListeners(DN dn);
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/**
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* Retrieves the delete listeners that have been registered with the
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* provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @return The list of delete listeners.
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*/
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public List<ConfigDeleteListener> getDeleteListeners(DN dn);
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/**
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* Retrieves the change listeners that have been registered with the
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* provided DN.
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*
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* @param dn
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* The DN of the configuration entry.
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* @return The list of change listeners.
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*/
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public List<ConfigChangeListener> getChangeListeners(DN dn);
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}
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