/*
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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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* Copyright 2006-2009 Sun Microsystems, Inc.
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*/
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package org.opends.server.api;
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import java.util.Collection;
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import org.opends.server.types.ByteSequence;
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import org.opends.server.types.ByteString;
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import org.opends.server.types.ConditionResult;
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import org.opends.server.types.DirectoryException;
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/**
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* This interface defines the set of methods that must be implemented
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* by a Directory Server module that implements a matching rule.
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*/
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@org.opends.server.types.PublicAPI(
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stability = org.opends.server.types.StabilityLevel.VOLATILE,
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mayInstantiate = false,
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mayExtend = true,
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mayInvoke = false)
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public interface MatchingRule
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{
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/**
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* Retrieves the common name for this matching rule.
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*
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* @return The common name for this matching rule, or {@code null}
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* if it does not have a name.
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*/
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String getName();
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/**
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* Retrieves all names for this matching rule.
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*
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* @return All names for this matching rule.
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*/
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Collection<String> getAllNames();
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/**
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* Retrieves the OID for this matching rule.
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*
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* @return The OID for this matching rule.
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*/
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String getOID();
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/**
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* Retrieves the normalized form of the provided assertion value,
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* which is best suite for efficiently performing matching
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* operations on that value.
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*
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* @param value
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* The assertion value to be normalized.
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* @return The normalized version of the provided value.
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* @throws DirectoryException
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* If the provided value is invalid according to the
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* associated attribute syntax.
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*/
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ByteString normalizeAssertionValue(ByteSequence value)
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throws DirectoryException;
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/**
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* Retrieves the name or OID for this matching rule. If it has a
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* name, then it will be returned. Otherwise, the OID will be
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* returned.
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*
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* @return The name or OID for this matching rule.
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*/
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String getNameOrOID();
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/**
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* Retrieves the description for this matching rule.
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*
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* @return The description for this matching rule, or {@code null}
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* if there is none.
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*/
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String getDescription();
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/**
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* Retrieves the OID of the syntax with which this matching rule is
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* associated.
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*
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* @return The OID of the syntax with which this matching rule is
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* associated.
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*/
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String getSyntaxOID();
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/**
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* Indicates whether this matching rule is declared "OBSOLETE". The
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* default implementation will always return {@code false}. If that
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* is not acceptable for a particular matching rule implementation,
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* then it should override this method and perform the appropriate
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* processing to return the correct value.
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*
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* @return {@code true} if this matching rule is declared
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* "OBSOLETE", or {@code false} if not.
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*/
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boolean isObsolete();
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/**
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* Retrieves the normalized form of the provided value, which is
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* best suite for efficiently performing matching operations on
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* that value.
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*
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* @param value
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* The value to be normalized.
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* @return The normalized version of the provided value.
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* @throws DirectoryException
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* If the provided value is invalid according to the
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* associated attribute syntax.
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*/
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ByteString normalizeValue(ByteSequence value)
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throws DirectoryException;
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/**
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* Indicates whether the provided attribute value should be
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* considered a match for the given assertion value. This will only
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* be used for the purpose of extensible matching. Subclasses
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* should define more specific methods that are appropriate to the
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* matching rule type.
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*
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* @param attributeValue
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* The attribute value in a form that has been normalized
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* according to this matching rule.
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* @param assertionValue
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* The assertion value in a form that has been normalized
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* according to this matching rule.
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* @return {@code TRUE} if the attribute value should be considered
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* a match for the provided assertion value, {@code FALSE}
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* if it does not match, or {@code UNDEFINED} if the result
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* is undefined.
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*/
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ConditionResult valuesMatch(
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ByteSequence attributeValue, ByteSequence assertionValue);
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/**
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* Appends a string representation of this matching rule in the
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* format defined in RFC 2252 to the provided buffer.
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*
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* @param buffer
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* The buffer to which the information should be appended.
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*/
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void toString(StringBuilder buffer);
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}
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