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Atlas Search

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Overview

In this guide, you can learn how to use the Java driver to run Atlas Search queries on a collection. Atlas Search enables you to perform full-text searches on collections hosted on MongoDB Atlas. Atlas Search indexes specify the behavior of the search and which fields to index.

サンプル データ

The example in this guide uses the movies collection in the sample_mflix database from the Atlas sample datasets. To learn how to create a free MongoDB Atlas cluster and load the sample datasets, see the Get Started with Atlas guide.

Atlas Search クエリの実行

This section shows how to create an aggregation pipeline to run an Atlas Search query on a collection. You can use the Aggregates.search() builder method to create a $search pipeline stage, which specifies the search criteria. Then, call the aggregate() method and pass your pipeline as a parameter.

Tip

To learn more about aggregation operations and builders, see the 集計 guide.

Before running an Atlas Search query, you must create an Atlas Search index on your collection. To learn how to programmatically create an Atlas Search index, see the Atlas Search と Vector Search インデックス section in the Indexes guide.

Atlas Search Example

This example runs an Atlas Search query by performing the following actions:

  • Constructs a $search stage by using the Aggregates.search() builder method, instructing the driver to query for documents in which the title field contains the word "Alabama"

  • Constructs a $project stage by using the Aggregates.project() builder method, instructing the driver to include the title field in the query results

  • Passes the pipeline stages to the aggregate() method and prints the results

collection.aggregate(
    Arrays.asList(
    	Aggregates.search(SearchOperator.text(
                      SearchPath.fieldPath("title"), "Alabama")),
        Aggregates.project(Projections.include("title"))
    )
).forEach(doc -> System.out.println(doc.toJson()));
{"_id": {"$oid": "..."}, "title": "Alabama Moon"}
{"_id": {"$oid": "..."}, "title": "Crazy in Alabama"}
{"_id": {"$oid": "..."}, "title": "Sweet Home Alabama"}

Tip

Java Driver Atlas Search Examples

To view more examples that use the Java driver to perform Atlas Search queries, see Atlas Search Tutorials in the Atlas documentation.

詳細情報

Atlas Search の詳細については、Atlas ドキュメントの「 Atlas Search 」を参照してください。

API ドキュメント

To learn more about the methods mentioned in this guide, see the following API documentation:

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Atlas Vector Search