/*
*
* 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.cassandra.index;
import java.util.Collection;
import org.apache.cassandra.schema.IndexMetadata;
/**
* The collection of all Index instances for a base table.
* The SecondaryIndexManager for a ColumnFamilyStore contains an IndexRegistry
* (actually it implements this interface at present) and Index implementations
* register in order to:
* i) subscribe to the stream of updates being applied to partitions in the base table
* ii) provide searchers to support queries with the relevant search predicates
*/
public interface IndexRegistry
{
void registerIndex(Index index);
void unregisterIndex(Index index);
Index getIndex(IndexMetadata indexMetadata);
Collection<Index> listIndexes();
}