1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53

// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.

package elastic

// SliceQuery allows to partition the documents into several slices.
// It is used e.g. to slice scroll operations in Elasticsearch 5.0 or later.
// See https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-request-scroll.html#sliced-scroll
// for details.
type SliceQuery struct {
	field string
	id    *int
	max   *int
}

// NewSliceQuery creates a new SliceQuery.
func NewSliceQuery() *SliceQuery {
	return &SliceQuery{}
}

// Field is the name of the field to slice against (_uid by default).
func (s *SliceQuery) Field(field string) *SliceQuery {
	s.field = field
	return s
}

// Id is the id of the slice.
func (s *SliceQuery) Id(id int) *SliceQuery {
	s.id = &id
	return s
}

// Max is the maximum number of slices.
func (s *SliceQuery) Max(max int) *SliceQuery {
	s.max = &max
	return s
}

// Source returns the JSON body.
func (s *SliceQuery) Source() (interface{}, error) {
	m := make(map[string]interface{})
	if s.field != "" {
		m["field"] = s.field
	}
	if s.id != nil {
		m["id"] = *s.id
	}
	if s.max != nil {
		m["max"] = *s.max
	}
	return m, nil
}