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store.go
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store.go
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package dbadapter
import (
"io"
dbm "github.com/tendermint/tm-db"
"github.com/cosmos/cosmos-sdk/store/cachekv"
"github.com/cosmos/cosmos-sdk/store/listenkv"
"github.com/cosmos/cosmos-sdk/store/tracekv"
"github.com/cosmos/cosmos-sdk/store/types"
)
// Wrapper type for dbm.Db with implementation of KVStore
type Store struct {
dbm.DB
}
// Get wraps the underlying DB's Get method panicing on error.
func (dsa Store) Get(key []byte) []byte {
v, err := dsa.DB.Get(key)
if err != nil {
panic(err)
}
return v
}
// Has wraps the underlying DB's Has method panicing on error.
func (dsa Store) Has(key []byte) bool {
ok, err := dsa.DB.Has(key)
if err != nil {
panic(err)
}
return ok
}
// Set wraps the underlying DB's Set method panicing on error.
func (dsa Store) Set(key, value []byte) {
types.AssertValidKey(key)
if err := dsa.DB.Set(key, value); err != nil {
panic(err)
}
}
// Delete wraps the underlying DB's Delete method panicing on error.
func (dsa Store) Delete(key []byte) {
if err := dsa.DB.Delete(key); err != nil {
panic(err)
}
}
// Iterator wraps the underlying DB's Iterator method panicing on error.
func (dsa Store) Iterator(start, end []byte) types.Iterator {
iter, err := dsa.DB.Iterator(start, end)
if err != nil {
panic(err)
}
return iter
}
// ReverseIterator wraps the underlying DB's ReverseIterator method panicing on error.
func (dsa Store) ReverseIterator(start, end []byte) types.Iterator {
iter, err := dsa.DB.ReverseIterator(start, end)
if err != nil {
panic(err)
}
return iter
}
// GetStoreType returns the type of the store.
func (Store) GetStoreType() types.StoreType {
return types.StoreTypeDB
}
// CacheWrap branches the underlying store.
func (dsa Store) CacheWrap() types.CacheWrap {
return cachekv.NewStore(dsa)
}
// CacheWrapWithTrace implements KVStore.
func (dsa Store) CacheWrapWithTrace(w io.Writer, tc types.TraceContext) types.CacheWrap {
return cachekv.NewStore(tracekv.NewStore(dsa, w, tc))
}
// CacheWrapWithListeners implements the CacheWrapper interface.
func (dsa Store) CacheWrapWithListeners(storeKey types.StoreKey, listeners []types.WriteListener) types.CacheWrap {
return cachekv.NewStore(listenkv.NewStore(dsa, storeKey, listeners))
}
// dbm.DB implements KVStore so we can CacheKVStore it.
var _ types.KVStore = Store{}