| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package org.apache.geode.cache.query.internal.index; |
| |
| import java.util.Collection; |
| |
| import org.apache.geode.internal.cache.RegionEntry; |
| import org.apache.geode.internal.cache.persistence.query.CloseableIterator; |
| |
| /** |
| * |
| * @since GemFire 8.0 |
| */ |
| public interface IndexStore { |
| |
| /** |
| * Add a mapping to the index store |
| * |
| */ |
| void addMapping(Object indexKey, RegionEntry re) throws IMQException; |
| |
| /** |
| * Remove a mapping from the index store If entry at indexKey is not found, we must crawl the |
| * index to be sure the region entry does not exist |
| * |
| */ |
| void removeMapping(Object indexKey, RegionEntry re) throws IMQException; |
| |
| /** |
| * Update a mapping in the index store. This method adds a new mapping and removes the old mapping |
| * |
| */ |
| void updateMapping(Object indexKey, Object oldKey, RegionEntry re, Object oldValue) |
| throws IMQException; |
| |
| String printAll(); |
| |
| /** |
| * Return all of the IndexStoreEntries that map to a given region key. |
| */ |
| CloseableIterator<IndexStoreEntry> get(Object indexKey); |
| |
| /** |
| * Return all of the IndexStoreEntries in the range between start and end. |
| */ |
| CloseableIterator<IndexStoreEntry> iterator(Object start, boolean startInclusive, Object end, |
| boolean endInclusive, Collection keysToRemove); |
| |
| /** |
| * Return all of the IndexStorageEntries that from start to the tail of the map. |
| */ |
| CloseableIterator<IndexStoreEntry> iterator(Object start, boolean startInclusive, |
| Collection keysToRemove); |
| |
| /** |
| * Return all of the IndexStorageEntries in the map. |
| */ |
| CloseableIterator<IndexStoreEntry> iterator(Collection keysToRemove); |
| |
| /** |
| * Return all of the IndexStoreEntries from the end to the head of the map. |
| */ |
| CloseableIterator<IndexStoreEntry> descendingIterator(Object end, boolean endInclusive, |
| Collection keysToRemove); |
| |
| /** |
| * Return all of the IndexStoreEntries in the map in descending order. |
| */ |
| CloseableIterator<IndexStoreEntry> descendingIterator(Collection keysToRemove); |
| |
| /** |
| * Return all of the IndexStoreEntries in the range between end and start. |
| */ |
| CloseableIterator<IndexStoreEntry> descendingIterator(Object start, boolean startInclusive, |
| Object end, boolean endInclusive, Collection keysToRemove); |
| |
| /** |
| * Return the number of IndexStoreEntries that map to a given Index key. |
| */ |
| int size(Object key); |
| |
| /** |
| * Return the total keys in the Index store |
| */ |
| int size(); |
| |
| boolean clear(); |
| |
| interface IndexStoreEntry { |
| /** |
| * returns deserialized key |
| */ |
| Object getDeserializedKey(); |
| |
| /** |
| * returns deserialized Region key or Value based on the whether the index is on Region keys or |
| * Region values. Defaults to RegionEntry |
| */ |
| Object getDeserializedValue(); |
| |
| /** |
| * returns deserialized region key |
| */ |
| Object getDeserializedRegionKey(); |
| |
| /** |
| * |
| * @return true if the RegionEntry is under update |
| * @see RegionEntry#isUpdateInProgress() isUpdateInProgress |
| */ |
| boolean isUpdateInProgress(); |
| } |
| |
| boolean isIndexOnRegionKeys(); |
| |
| void setIndexOnRegionKeys(boolean indexOnRegionKeys); |
| |
| boolean isIndexOnValues(); |
| |
| void setIndexOnValues(boolean indexOnValues); |
| |
| Object getTargetObject(RegionEntry entry); |
| |
| Object getTargetObjectInVM(RegionEntry entry); |
| } |