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bleve/query_numeric_range.go

70 lines
2.1 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package bleve
import (
"github.com/couchbaselabs/bleve/search"
)
type NumericRangeQuery struct {
Min *float64 `json:"min,omitempty"`
Max *float64 `json:"max,omitempty"`
InclusiveMin *bool `json:"inclusive_min,omitempty"`
InclusiveMax *bool `json:"inclusive_max,omitempty"`
FieldVal string `json:"field,omitempty"`
BoostVal float64 `json:"boost,omitempty"`
}
func NewNumericRangeQuery(min, max *float64) *NumericRangeQuery {
return NewNumericRangeInclusiveQuery(min, max, nil, nil)
}
func NewNumericRangeInclusiveQuery(min, max *float64, minInclusive, maxInclusive *bool) *NumericRangeQuery {
return &NumericRangeQuery{
Min: min,
Max: max,
InclusiveMin: minInclusive,
InclusiveMax: maxInclusive,
BoostVal: 1.0,
}
}
func (q *NumericRangeQuery) Boost() float64 {
return q.BoostVal
}
func (q *NumericRangeQuery) SetBoost(b float64) *NumericRangeQuery {
q.BoostVal = b
return q
}
func (q *NumericRangeQuery) Field() string {
return q.FieldVal
}
func (q *NumericRangeQuery) SetField(f string) *NumericRangeQuery {
q.FieldVal = f
return q
}
func (q *NumericRangeQuery) Searcher(i *indexImpl, explain bool) (search.Searcher, error) {
field := q.FieldVal
if q.FieldVal == "" {
field = i.m.DefaultField
}
return search.NewNumericRangeSearcher(i.i, q.Min, q.Max, q.InclusiveMin, q.InclusiveMax, field, q.BoostVal, explain)
}
func (q *NumericRangeQuery) Validate() error {
if q.Min == nil && q.Min == q.Max {
return ERROR_NUMERIC_QUERY_NO_BOUNDS
}
return nil
}