ElasticSearch in Spring with #Query - elasticsearch

Question

I have successfully created a query using ElasticSearch's _plugin/head interface. The query is meant to return the latest timestamp for a specific device at a specific location. The query looks as follows:
{
"query":{
"bool":{
"must":[
{
"term":{
"deviceevent.location.id":"1"
}
},
{
"term":{
"deviceevent.deviceId":"AHE1LDD01"
}
}
]
}
},
"from":0,
"size":1,
"sort":{
"timestamp":{
"order":"desc"
}
}
}
The above query works as intended.
Now using Spring-Boot and Spring-Data-ElasticSearch, I defined my own ElasticSearchRepository which looks as follows:
package com.repository.elasticsearch;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.annotations.Query;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import com.domain.DeviceEvent;
public interface DeviceEventRepository extends ElasticsearchRepository<DeviceEvent, String>
{
#Query("{\"bool\":{\"must\":[{\"term\":{\"deviceevent.location.id\": \"?0\"}},{\"term\":{\"deviceevent.deviceId\": \"?1\"}}]}},\"from\": 0,\"size\": 1,\"sort\":{\"timestamp\":{\"order\":\"desc\"}}")
DeviceEvent findLatestCheckInAtLocation(Long locationId, String deviceId);
}
The above code is breaking mainly because I would expect it to return one DeviceEvent, but it's actually returning a device events with count = 10 (The default Page size). It seems also that the results are not being ordered by the timestamp in a descending order. It's as if the size and order parts of the query are not being picked up.
What am I doing wrong here?

Answer 1

Instead of controlling the results size in the query annotation.
Use the Pageable interface, the following is taken from the documentation.
public interface BookRepository extends ElasticsearchRepository<Book, String> {
#Query("{"bool" : {"must" : {"field" : {"name" : "?0"}}}}")
Page<Book> findByName(String name,Pageable pageable);
}
This would allow you to:
findByName("foo-name", new PageRequest(0,1));
If you want to sort also:
findByName("foo-name", new PageRequest(0,1, new Sort(new Sort.Order(Sort.Direction.ASC,"name")))).getContent().get(0);