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 /*
  * Copyright 2011 the original author or authors.
  *
  * 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 org.springframework.data.mongodb.core;
Index operations on a collection.

Author(s):
Mark Pollack
Oliver Gierke
public interface IndexOperations {

Ensure that an index for the provided org.springframework.data.mongodb.core.index.IndexDefinition exists for the collection indicated by the entity class. If not it will be created.

Parameters:
indexDefinition must not be null.
	void ensureIndex(IndexDefinition indexDefinition);

Drops an index from this collection.

Parameters:
name name of index to drop
	void dropIndex(String name);

Drops all indices from this collection.
	void dropAllIndexes();

Clears all indices that have not yet been applied to this collection.
Returns the index information on the collection.

Returns:
index information on the collection
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