add Delete

kv/PrefixCodec.go

@@ -0,0 +1,25 @@
+package kv
+
+import (
+	"github.com/tursom/GoCollections/exceptions"
+	"github.com/tursom/GoCollections/lang"
+)
+
+type (
+	prefixCodec struct {
+		lang.BaseObject
+		prefix string
+	}
+)
+
+func PrefixCodec(prefix string) Codec[string, string] {
+	return &prefixCodec{prefix: prefix}
+}
+
+func (p *prefixCodec) Encode(v2 string) string {
+	return p.prefix + v2
+}
+
+func (p *prefixCodec) Decode(v1 string) string {
+	panic(exceptions.NewIllegalAccessException("unsupported method", nil))
+}