/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * 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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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.api;
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import org.opends.server.config.ConfigEntry;
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import org.opends.server.config.ConfigException;
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import org.opends.server.core.SearchOperation;
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import org.opends.server.types.AttributeType;
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import org.opends.server.types.ByteString;
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import org.opends.server.types.Entry;
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import org.opends.server.types.InitializationException;
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import org.opends.server.types.SearchResultEntry;
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/**
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* This class defines the set of methods and structures that must be
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* implemented by a Directory Server module that implements the
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* functionality required for one or more virtual attributes.
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*/
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public abstract class VirtualAttribute
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{
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/**
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* Initializes this virtual attribute based on the information in
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* the provided configuration entry.
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*
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* @param configEntry The configuration entry that contains the
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* information to use to initialize this
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* virtual attribute.
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*
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* @throws ConfigException If an unrecoverable problem arises in
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* the process of performing the
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* initialization.
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*
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* @throws InitializationException If a problem occurs during
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* initialization that is not
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* related to the server
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* configuration.
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*/
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public abstract void initializeVirtualAttribute(
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ConfigEntry configEntry)
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throws ConfigException, InitializationException;
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/**
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* Retrieves the name of this virtual attribute.
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*
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* @return The name of this virtual attribute.
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*/
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public abstract String getName();
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/**
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* Indicates whether the provided entry matches the given
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* attribute-value assertion.
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*
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* @param entry The entry for which to make the
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* determination.
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* @param attributeType The attribute type for which to make the
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* determination.
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* @param assertionValue The value for which to make the
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* determination.
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*
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* @return <CODE>true</CODE> if the given entry matches the
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* provided assertion details, or <CODE>false</CODE> if
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* not.
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*/
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public abstract boolean entryMatches(Entry entry,
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AttributeType attributeType,
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ByteString assertionValue);
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/**
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* Updates the provided entry if appropriate to include one or more
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* values for this virtual attribute. The entry may be left
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* unaltered if it is not one that should contain this virtual
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* attribute. This method may alter real attributes if appropriate
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* as well.
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*
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* @param entry The entry to be updated if necessary.
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* @param searchOperation The search operation with which the
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* entry is associated.
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*/
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public abstract void updateEntry(SearchResultEntry entry,
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SearchOperation searchOperation);
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/**
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* Indicates whether this attribute may be included in search
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* filters as part of the criteria for locating entries.
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*
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* @return <CODE>true</CODE> if this attribute may be included in
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* search filters, or <CODE>false</CODE> if not.
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*/
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public abstract boolean isSearchable();
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/**
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* Processes the provided search operation in which the search
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* criteria includes an operation targeted at this virtual
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* attribute. This method will only be called if
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* <CODE>isSearchable</CODE> returns true and it is not possible to
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* construct a manageable candidate list by processing other
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* elements of the search criteria.
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*
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* @param searchOperation The search operation to be processed.
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*/
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public abstract void processSearch(SearchOperation searchOperation);
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}
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