Delete API

Delete Request

A DeleteRequest requires the following arguments:

DeleteRequest request = new DeleteRequest(
        "posts",    
        "doc",     
        "1");      

Index

Type

Document id

Optional arguments

The following arguments can optionally be provided:

request.routing("routing"); 

Routing value

request.parent("parent"); 

Parent value

request.timeout(TimeValue.timeValueMinutes(2)); 
request.timeout("2m"); 

Timeout to wait for primary shard to become available as a TimeValue

Timeout to wait for primary shard to become available as a String

request.setRefreshPolicy(WriteRequest.RefreshPolicy.WAIT_UNTIL); 
request.setRefreshPolicy("wait_for");                            

Refresh policy as a WriteRequest.RefreshPolicy instance

Refresh policy as a String

request.version(2); 

Version

request.versionType(VersionType.EXTERNAL); 

Version type

Synchronous Execution

DeleteResponse deleteResponse = client.delete(request);

Asynchronous Execution

client.deleteAsync(request, new ActionListener<DeleteResponse>() {
    @Override
    public void onResponse(DeleteResponse deleteResponse) {
        
    }

    @Override
    public void onFailure(Exception e) {
        
    }
});

Called when the execution is successfully completed. The response is provided as an argument

Called in case of failure. The raised exception is provided as an argument

Delete Response

The returned DeleteResponse allows to retrieve information about the executed operation as follows:

String index = deleteResponse.getIndex();
String type = deleteResponse.getType();
String id = deleteResponse.getId();
long version = deleteResponse.getVersion();
ReplicationResponse.ShardInfo shardInfo = deleteResponse.getShardInfo();
if (shardInfo.getTotal() != shardInfo.getSuccessful()) {
    
}
if (shardInfo.getFailed() > 0) {
    for (ReplicationResponse.ShardInfo.Failure failure : shardInfo.getFailures()) {
        String reason = failure.reason(); 
    }
}

Handle the situation where number of successful shards is less than total shards

Handle the potential failures

It is also possible to check whether the document was found or not:

DeleteRequest request = new DeleteRequest("posts", "doc", "does_not_exist");
DeleteResponse deleteResponse = client.delete(request);
if (deleteResponse.getResult() == DocWriteResponse.Result.NOT_FOUND) {
    
}

Do something if the document to be deleted was not found

If there is a version conflict, an ElasticsearchException will be thrown:

try {
    DeleteRequest request = new DeleteRequest("posts", "doc", "1").version(2);
    DeleteResponse deleteResponse = client.delete(request);
} catch (ElasticsearchException exception) {
    if (exception.status() == RestStatus.CONFLICT) {
        
    }
}

The raised exception indicates that a version conflict error was returned