/
reducer.go
94 lines (73 loc) · 2.5 KB
/
reducer.go
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package redisearch
import "github.com/gomodule/redigo/redis"
// GroupByReducers
type GroupByReducers string
const (
// GroupByReducerCount is an alias for GROUPBY reducer COUNT
GroupByReducerCount = GroupByReducers("COUNT")
// GroupByReducerCountDistinct is an alias for GROUPBY reducer COUNT_DISTINCT
GroupByReducerCountDistinct = GroupByReducers("COUNT_DISTINCT")
// GroupByReducerCountDistinctish is an alias for GROUPBY reducer COUNT_DISTINCTISH
GroupByReducerCountDistinctish = GroupByReducers("COUNT_DISTINCTISH")
// GroupByReducerSum is an alias for GROUPBY reducer SUM
GroupByReducerSum = GroupByReducers("SUM")
// GroupByReducerMin is an alias for GROUPBY reducer MIN
GroupByReducerMin = GroupByReducers("MIN")
// GroupByReducerMax is an alias for GROUPBY reducer MAX
GroupByReducerMax = GroupByReducers("MAX")
// GroupByReducerAvg is an alias for GROUPBY reducer AVG
GroupByReducerAvg = GroupByReducers("AVG")
// GroupByReducerStdDev is an alias for GROUPBY reducer STDDEV
GroupByReducerStdDev = GroupByReducers("STDDEV")
// GroupByReducerQuantile is an alias for GROUPBY reducer QUANTILE
GroupByReducerQuantile = GroupByReducers("QUANTILE")
// GroupByReducerToList is an alias for GROUPBY reducer TOLIST
GroupByReducerToList = GroupByReducers("TOLIST")
// GroupByReducerFirstValue is an alias for GROUPBY reducer FIRST_VALUE
GroupByReducerFirstValue = GroupByReducers("FIRST_VALUE")
// GroupByReducerRandomSample is an alias for GROUPBY reducer RANDOM_SAMPLE
GroupByReducerRandomSample = GroupByReducers("RANDOM_SAMPLE")
)
// Reducer represents an index schema Schema, or how the index would
// treat documents sent to it.
type Reducer struct {
Name GroupByReducers
Alias string
Args []string
}
// NewReducer creates a new Reducer object
func NewReducer(name GroupByReducers, args []string) *Reducer {
return &Reducer{
Name: name,
Alias: "",
Args: args,
}
}
// NewReducer creates a new Reducer object
func NewReducerAlias(name GroupByReducers, args []string, alias string) *Reducer {
return &Reducer{
Name: name,
Alias: alias,
Args: args,
}
}
func (r *Reducer) SetName(reducer GroupByReducers) *Reducer {
r.Name = reducer
return r
}
func (r *Reducer) SetArgs(args []string) *Reducer {
r.Args = args
return r
}
func (r *Reducer) SetAlias(a string) *Reducer {
r.Alias = a
return r
}
func (r Reducer) Serialize() redis.Args {
ret := len(r.Args)
args := redis.Args{"REDUCE", r.Name, ret}.AddFlat(r.Args)
if r.Alias != "" {
args = append(args, "AS", r.Alias)
}
return args
}