java elasticsearch bbos

### Java Elasticsearch BBOSS Framework Example Usage and Documentation

#### Introduction to BBoss-Elasticsearch
BBoss-Elasticsearch represents a powerful high-level REST client API designed specifically for interacting with Elasticsearch using Java. This tool simplifies the process of integrating Elasticsearch into applications by providing an intuitive interface that abstracts away much of the complexity involved in direct HTTP requests or lower-level clients[^1].

The official project repository can be found at [this link](https://gitcode.com/gh_mirrors/bb/bboss-elasticsearch), where developers may explore source code, contribute improvements, report issues, and access comprehensive documentation.

#### Basic Configuration and Setup
To begin working with BBoss-Elasticsearch within a Java application, one must first include it as a dependency in their build configuration file (Maven POM.xml or Gradle). Afterward, configuring connections involves setting up properties such as cluster name, node addresses, port numbers, etc., which are typically stored inside `application.properties` or equivalent files depending on your environment setup[^3].

For instance, here's how you might configure connection settings:

# application.properties
es.cluster.name=elasticsearch_cluster_name
es.node.host=localhost
es.node.port=9300

#### Code Examples Demonstrating Common Operations

##### Indexing Documents
Index operations allow storing documents into specified indices so they become searchable later on. Below demonstrates indexing JSON-formatted data through BBoss-Elasticsearch APIs:

// Import necessary packages from org.frameworkset.elasticsearch.client package.
import org.frameworkset.elasticsearch.client.DataStream;
import org.frameworkset.elasticsearch.entity.ESDatas;

public class ElasticSearchExample {
    public static void main(String[] args){
        try{
            // Initialize DataStream object associated with target index type.
            DataStream stream = new DataStream("index_type");
            
            // Prepare document content represented as Map<String,Object>.
            Map<String, Object> docContent = Maps.newHashMap();
            docContent.put("field", "value");

            // Perform actual insert operation via add method call.
            String id = stream.add(docContent);
            System.out.println("Document inserted successfully with ID:" +id);

        }catch(Exception e){
            e.printStackTrace();
        }
    }
}

##### Searching Indexed Data
Once documents have been indexed properly, performing searches becomes straightforward thanks to built-in query builders provided by BBoss-Elasticsearch library functions like matchQuery(), termQuery() among others.

Here’s an example showing basic keyword matching against specific fields:

try{
    // Create QueryBuilder instance representing desired search criteria.
    BoolQueryBuilder qb = QueryBuilders.boolQuery()
                        .must(QueryBuilders.matchQuery("title","example"))
                        .filter(QueryBuilders.termQuery("status","published"));

    // Execute search request over given index/type combination.
    ESDatas<Map> result = esClient.search(qb,"index_name","type_name");

    // Iterate over returned hits collection printing out each hit's _source field value.
    List<HitInfo<Map>> list = result.getHits();
    for(HitInfo<Map> item :list){
        System.out.println(item.getSource());
    }

}catch(Exception ex){
    ex.printStackTrace();
}

--related questions--

1. How does BBoss-Elasticsearch compare performance-wise compared to other available options?
2. What kind of support exists around maintaining compatibility between different versions of Elasticsearch and BBoss-Elasticsearch?
3. Are there any particular features unique only to BBoss-Elasticsearch not present elsewhere?
4. Can someone provide more detailed explanations regarding advanced configurations beyond simple property definitions?