/*
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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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* Copyright 2011-2015 ForgeRock AS
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*/
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package org.opends.server.backends.pluggable;
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import static org.opends.server.backends.pluggable.EntryIDSet.*;
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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.ByteSequence;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.ConditionResult;
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import org.forgerock.opendj.ldap.spi.IndexingOptions;
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import org.opends.server.backends.pluggable.State.IndexFlag;
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import org.opends.server.backends.pluggable.spi.ReadableTransaction;
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import org.opends.server.backends.pluggable.spi.StorageRuntimeException;
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import org.opends.server.backends.pluggable.spi.TreeName;
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import org.opends.server.backends.pluggable.spi.WriteableTransaction;
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import org.opends.server.types.Entry;
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import org.opends.server.types.Modification;
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/**
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* A null index which replaces id2children and id2subtree when they have been
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* disabled.
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*/
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final class NullIndex extends Index
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{
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NullIndex(TreeName name, Indexer indexer, State state, WriteableTransaction txn,
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EntryContainer entryContainer) throws StorageRuntimeException
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{
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super(name, indexer, state, 0, 0, false, txn, entryContainer);
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state.removeFlagsFromIndex(txn, name, IndexFlag.TRUSTED);
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super.delete(txn);
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}
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@Override
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void updateKey(WriteableTransaction txn, ByteString key, EntryIDSet deletedIDs, EntryIDSet addedIDs)
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throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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void delete(IndexBuffer buffer, ByteString keyBytes)
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{
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// Do nothing.
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}
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@Override
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ConditionResult containsID(ReadableTransaction txn, ByteString key, EntryID entryID)
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throws StorageRuntimeException
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{
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return ConditionResult.UNDEFINED;
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}
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@Override
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EntryIDSet read(ReadableTransaction txn, ByteSequence key)
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{
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return newUndefinedSet();
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}
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@Override
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EntryIDSet readRange(ReadableTransaction txn, ByteSequence lower, ByteSequence upper, boolean lowerIncluded,
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boolean upperIncluded)
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{
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return newUndefinedSet();
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}
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@Override
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int getEntryLimitExceededCount()
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{
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return 0;
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}
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@Override
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void addEntry(IndexBuffer buffer, EntryID entryID, Entry entry, IndexingOptions options)
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throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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void removeEntry(IndexBuffer buffer, EntryID entryID, Entry entry, IndexingOptions options)
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throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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void modifyEntry(IndexBuffer buffer, EntryID entryID, Entry oldEntry, Entry newEntry, List<Modification> mods,
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IndexingOptions options) throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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boolean setIndexEntryLimit(int indexEntryLimit)
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{
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return false;
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}
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@Override
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int getIndexEntryLimit()
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{
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return 0;
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}
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@Override
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void setTrusted(WriteableTransaction txn, boolean trusted) throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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boolean isTrusted()
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{
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return true;
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}
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@Override
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boolean isRebuildRunning()
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{
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return false;
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}
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@Override
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boolean getMaintainCount()
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{
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return false;
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}
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@Override
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void open(WriteableTransaction txn) throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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long getRecordCount(ReadableTransaction txn) throws StorageRuntimeException
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{
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return 0;
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}
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@Override
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void delete(WriteableTransaction txn) throws StorageRuntimeException
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{
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// Do nothing.
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}
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@Override
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void indexEntry(Entry entry, Set<ByteString> keys, IndexingOptions options)
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{
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// Do nothing.
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}
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}
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