filter

type Aggregate struct {
	Aggregation Aggregation
	Field       string
}

type Aggregation int

type ConjunctionType string

type Criterion struct {
	Type        dal.Type      `json:"type,omitempty"`
	Length      int           `json:"length,omitempty"`
	Field       string        `json:"field"`
	Operator    string        `json:"operator,omitempty"`
	Values      []interface{} `json:"values"`
	Aggregation Aggregation   `json:"aggregation,omitempty"`
}

type Filter struct {
	Spec          string
	MatchAll      bool
	Offset        int
	Limit         int
	Criteria      []Criterion
	Sort          []string
	Fields        []string
	Options       map[string]interface{}
	Paginate      bool
	IdentityField string
	Normalizer    NormalizerFunc
	Conjunction   ConjunctionType
}

type Generator struct {
	IGenerator
	// contains filtered or unexported fields
}

type IGenerator interface {
	Initialize(string) error
	Finalize(*Filter) error
	Push([]byte)
	Set([]byte)
	Payload() []byte
	WithCriterion(Criterion) error
	OrCriterion(Criterion) error
	WithField(string) error
	GroupByField(string) error
	AggregateByField(Aggregation, string) error
	SetOption(string, interface{}) error
	GetValues() []interface{}
	Reset()
}

type NormalizerFunc func(in string) string // {}

type SortBy struct {
	Field      string
	Descending bool
}