/*
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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 2006-2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.api;
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import org.opends.server.types.ConditionResult;
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import org.opends.server.types.ByteSequence;
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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 a matching
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* rule used for approximate matching.
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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 abstract class ApproximateMatchingRule
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extends MatchingRule
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{
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/**
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* Indicates whether the two provided normalized values are
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* approximately equal to each other.
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*
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* @param value1 The normalized form of the first value to
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* compare.
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* @param value2 The normalized form of the second value to
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* compare.
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*
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* @return {@code true} if the provided values are approximately
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* equal, or {@code false} if not.
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*/
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public abstract boolean approximatelyMatch(ByteSequence value1,
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ByteSequence value2);
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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. Other forms of
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* matching against approximate matching rules should use the
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* {@code areEqual} method.
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*
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* @param attributeValue The attribute value in a form that has
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* been normalized according to this
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* matching rule.
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* @param assertionValue The assertion value in a form that has
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* been normalized according to this
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* matching rule.
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*
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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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public ConditionResult valuesMatch(ByteSequence attributeValue,
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ByteSequence assertionValue)
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{
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if (approximatelyMatch(attributeValue, assertionValue))
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{
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return ConditionResult.TRUE;
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}
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else
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{
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return ConditionResult.FALSE;
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}
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}
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}
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