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geo_ring.go
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/
geo_ring.go
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// Licensed to ClickHouse, Inc. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. ClickHouse, Inc. licenses this file to you 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 column
import (
"fmt"
"github.com/ClickHouse/ch-go/proto"
"reflect"
"github.com/paulmach/orb"
)
type Ring struct {
set *Array
name string
}
func (col *Ring) Reset() {
col.set.Reset()
}
func (col *Ring) Name() string {
return col.name
}
func (col *Ring) Type() Type {
return "Ring"
}
func (col *Ring) ScanType() reflect.Type {
return scanTypeRing
}
func (col *Ring) Rows() int {
return col.set.Rows()
}
func (col *Ring) Row(i int, ptr bool) any {
value := col.row(i)
if ptr {
return &value
}
return value
}
func (col *Ring) ScanRow(dest any, row int) error {
switch d := dest.(type) {
case *orb.Ring:
*d = col.row(row)
case **orb.Ring:
*d = new(orb.Ring)
**d = col.row(row)
default:
return &ColumnConverterError{
Op: "ScanRow",
To: fmt.Sprintf("%T", dest),
From: "Ring",
Hint: fmt.Sprintf("try using *%s", col.ScanType()),
}
}
return nil
}
func (col *Ring) Append(v any) (nulls []uint8, err error) {
switch v := v.(type) {
case []orb.Ring:
values := make([][]orb.Point, 0, len(v))
for _, v := range v {
values = append(values, v)
}
return col.set.Append(values)
case []*orb.Ring:
values := make([][]orb.Point, 0, len(v))
for _, v := range v {
values = append(values, *v)
}
return col.set.Append(values)
default:
return nil, &ColumnConverterError{
Op: "Append",
To: "Ring",
From: fmt.Sprintf("%T", v),
}
}
}
func (col *Ring) AppendRow(v any) error {
switch v := v.(type) {
case orb.Ring:
return col.set.AppendRow([]orb.Point(v))
case *orb.Ring:
return col.set.AppendRow([]orb.Point(*v))
default:
return &ColumnConverterError{
Op: "AppendRow",
To: "Ring",
From: fmt.Sprintf("%T", v),
}
}
}
func (col *Ring) Decode(reader *proto.Reader, rows int) error {
return col.set.Decode(reader, rows)
}
func (col *Ring) Encode(buffer *proto.Buffer) {
col.set.Encode(buffer)
}
func (col *Ring) row(i int) orb.Ring {
var value []orb.Point
{
col.set.ScanRow(&value, i)
}
return value
}
var _ Interface = (*Ring)(nil)