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// Copyright (C) 2016 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.index;
import com.google.common.collect.ImmutableSortedMap;
import com.google.gerrit.common.Nullable;
/**
* Definition of an index over a Gerrit data type.
*
* <p>An <em>index</em> includes a set of schema definitions along with the specific implementations
* used to query the secondary index implementation in a running server. If you are just interested
* in the static definition of one or more schemas, see the implementations of {@link
* SchemaDefinitions}.
*/
public abstract class IndexDefinition<K, V, I extends Index<K, V>> {
public interface IndexFactory<K, V, I extends Index<K, V>> {
I create(Schema<V> schema);
}
private final SchemaDefinitions<V> schemaDefs;
private final IndexCollection<K, V, I> indexCollection;
private final IndexFactory<K, V, I> indexFactory;
private final SiteIndexer<K, V, I> siteIndexer;
protected IndexDefinition(
SchemaDefinitions<V> schemaDefs,
IndexCollection<K, V, I> indexCollection,
IndexFactory<K, V, I> indexFactory,
@Nullable SiteIndexer<K, V, I> siteIndexer) {
this.schemaDefs = schemaDefs;
this.indexCollection = indexCollection;
this.indexFactory = indexFactory;
this.siteIndexer = siteIndexer;
}
public final String getName() {
return schemaDefs.getName();
}
public final ImmutableSortedMap<Integer, Schema<V>> getSchemas() {
return schemaDefs.getSchemas();
}
public final Schema<V> getLatest() {
return schemaDefs.getLatest();
}
public final IndexCollection<K, V, I> getIndexCollection() {
return indexCollection;
}
public final IndexFactory<K, V, I> getIndexFactory() {
return indexFactory;
}
@Nullable
public final SiteIndexer<K, V, I> getSiteIndexer() {
return siteIndexer;
}
}
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