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handle.go
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handle.go
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package updater
import (
"github.com/hwcer/updater/operator"
)
type RAMType int8
const (
RAMTypeNone RAMType = iota //实时读写数据
RAMTypeMaybe //按需读写
RAMTypeAlways //内存运行
)
// 通过MODEL直接获取IType
type modelIType interface {
IType(iid int32) int32
}
type stmHandleOptCreate func(t operator.Types, k any, v int64, r any)
type stmHandleDataExist func(k any) bool
//
//type stmDatasetValues struct {
// v map[any]int64
//}
//
//func (this *stmDatasetValues) get(k any) (v int64, ok bool) {
// if this.v != nil {
// v, ok = this.v[k]
// }
// return
//}
//
//func (this *stmDatasetValues) set(k any, v int64) {
// if this.v == nil {
// this.v = map[any]int64{}
// }
// this.v[k] = v
//}
//
//func (this *stmDatasetValues) add(k any, v int64) {
// if this.v == nil {
// this.v = map[any]int64{}
// }
// this.v[k] += v
//}
//
//func (this *stmDatasetValues) sub(k any, v int64) {
// if this.v == nil {
// this.v = map[any]int64{}
// }
// this.v[k] -= v
//}
//
//func (this *stmDatasetValues) release() {
// this.v = nil
//}
type statement struct {
ram RAMType
keys Keys
cache []*operator.Operator
//values stmDatasetValues //执行过程中的数量过程
Updater *Updater
operator []*operator.Operator //操作
handleOptCreate stmHandleOptCreate
handleDataExist stmHandleDataExist //查询数据集中是否存在
}
func newStatement(u *Updater, ram RAMType, opt stmHandleOptCreate, exist stmHandleDataExist) *statement {
return &statement{ram: ram, handleOptCreate: opt, handleDataExist: exist, Updater: u}
}
//func (stmt *statement) done() {
// //stmt.cache = append(stmt.cache, stmt.operator...)
// if !stmt.Updater.Async {
// stmt.keys = nil
// stmt.values.release()
// }
// stmt.operator = nil
// //stmt.verify = false
// //stmt.Updater.Error = nil
//}
// Has 查询key(DBName)是否已经初始化
func (stmt *statement) has(key any) bool {
if stmt.ram == RAMTypeAlways {
return true
}
if stmt.keys != nil && stmt.keys.Has(key) {
return true
}
return stmt.handleDataExist(key)
}
func (stmt *statement) reset() {
//if stmt.values == nil {
// stmt.values = map[any]int64{}
//}
//if stmt.keys == nil && stmt.ram != RAMTypeAlways {
// stmt.keys = Keys{}
//}
}
// 每一个执行时都会执行 release
func (stmt *statement) release() {
//if !stmt.Updater.Async {
// stmt.values.release()
//}
stmt.keys = nil
stmt.operator = nil
}
// date 执行Data 后操作
func (stmt *statement) date() {
stmt.keys = nil
}
// verify 执行verify后操作
func (stmt *statement) verify() {
if len(stmt.operator) > 0 {
stmt.cache = append(stmt.cache, stmt.operator...)
stmt.operator = nil
}
}
func (stmt *statement) submit() {
if len(stmt.cache) > 0 {
stmt.Updater.dirty = append(stmt.Updater.dirty, stmt.cache...)
stmt.cache = nil
}
}
func (stmt *statement) Select(key any) {
if stmt.has(key) {
return
}
if stmt.keys == nil {
stmt.keys = Keys{}
}
stmt.keys.Select(key)
stmt.Updater.changed = true
}
func (stmt *statement) Errorf(format any, args ...any) error {
return stmt.Updater.Errorf(format, args...)
}
// Operator 直接调用有问题
func (stmt *statement) Operator(c *operator.Operator, before ...bool) {
if len(before) > 0 && before[0] {
stmt.operator = append([]*operator.Operator{c}, stmt.operator...)
} else {
stmt.operator = append(stmt.operator, c)
}
stmt.Updater.operated = true
}
//func (b *statement) Has(key string) bool {
// return b.Fields.Has(key)
//}
//func (stmt *statement) submit() []*operator.Operator {
// return stmt.cache
//}
// Select 字段名(HASH)或者OID(table)
//func (b *statement) Select(keys ...string) {
// if r := b.Fields.Select(keys...); r > 0 {
// b.Updater.changed = true
// }
//}
func (stmt *statement) Add(k any, v int32) {
if v <= 0 {
return
}
stmt.handleOptCreate(operator.TypesAdd, k, int64(v), nil)
}
func (stmt *statement) Sub(k any, v int32) {
if v <= 0 {
return
}
stmt.handleOptCreate(operator.TypesSub, k, int64(v), nil)
}
func (stmt *statement) Max(k any, v int64) {
stmt.handleOptCreate(operator.TypesMax, k, v, nil)
}
func (stmt *statement) Min(k any, v int64) {
stmt.handleOptCreate(operator.TypesMin, k, v, nil)
}
func (stmt *statement) Del(k any) {
stmt.handleOptCreate(operator.TypesDel, k, 0, nil)
}
// Set set结果
// coll Set(iid,k,v) Set(iid,map[any]any)
// hash doc Set(k,v) Set(map[any]any)
//func (this *statement) Set(k any, v ...any) {
// switch len(v) {
// case 0:
// this.handle(dirty.OperatorTypeSet, k, nil)
// case 1:
// this.handle(dirty.OperatorTypeSet, k, v[0])
// case 2:
// if field, ok := v[0].(string); ok {
// this.handle(dirty.OperatorTypeSet, k, dirty.NewUpdate(field, v[1]))
// } else {
// logger.Debug("set args error:%v", v)
// }
// }
//}