Error code for cache module

client/cache/error_code.go

@@ -0,0 +1,48 @@
+// Copyright 2021 beego
+//
+// Licensed 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 cache
+
+import (
+	"github.com/beego/beego/v2/core/berror"
+)
+
+var NilCacheAdapter = berror.DefineCode(4002001, moduleName, "NilCacheAdapter", `
+It means that you register cache adapter by pass nil.
+A cache adapter is an instance of Cache interface. 
+`)
+
+var DuplicateAdapter = berror.DefineCode(4002002, moduleName, "DuplicateAdapter", `
+You register two adapter with same name. In beego cache module, one name one adapter.
+Once you got this error, please check the error stack, search adapter 
+`)
+
+var UnknownAdapter = berror.DefineCode(4002003, moduleName, "UnknownAdapter", `
+Unknown adapter, do you forget to register the adapter?
+You must register adapter before use it. For example, if you want to use redis implementation, 
+you must import the cache/redis package.
+`)
+
+var IncrementOverflow = berror.DefineCode(4002004, moduleName, "IncrementOverflow", `
+The increment operation will overflow.
+`)
+
+var DecrementOverflow = berror.DefineCode(4002005, moduleName, "DecrementOverflow", `
+The decrement operation will overflow.
+`)
+
+var NotIntegerType = berror.DefineCode(4002006, moduleName, "NotIntegerType", `
+The type of value is not (u)int (u)int32 (u)int64. 
+When you want to call Incr or Decr function of Cache API, you must confirm that the value's type is one of (u)int (u)int32 (u)int64.
+`)