62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
// Copyright 2012 Gary Burd
|
|
//
|
|
// 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 redis
|
|
|
|
// Error represents an error returned in a command reply.
|
|
type Error string
|
|
|
|
func (err Error) Error() string { return string(err) }
|
|
|
|
// Conn represents a connection to a Redis server.
|
|
type Conn interface {
|
|
// Close closes the connection.
|
|
Close() error
|
|
|
|
// Err returns a non-nil value when the connection is not usable.
|
|
Err() error
|
|
|
|
// Do sends a command to the server and returns the received reply.
|
|
Do(commandName string, args ...interface{}) (reply interface{}, err error)
|
|
|
|
// Send writes the command to the client's output buffer.
|
|
Send(commandName string, args ...interface{}) error
|
|
|
|
// Flush flushes the output buffer to the Redis server.
|
|
Flush() error
|
|
|
|
// Receive receives a single reply from the Redis server
|
|
Receive() (reply interface{}, err error)
|
|
}
|
|
|
|
// Argument is the interface implemented by an object which wants to control how
|
|
// the object is converted to Redis bulk strings.
|
|
type Argument interface {
|
|
// RedisArg returns a value to be encoded as a bulk string per the
|
|
// conversions listed in the section 'Executing Commands'.
|
|
// Implementations should typically return a []byte or string.
|
|
RedisArg() interface{}
|
|
}
|
|
|
|
// Scanner is implemented by an object which wants to control its value is
|
|
// interpreted when read from Redis.
|
|
type Scanner interface {
|
|
// RedisScan assigns a value from a Redis value. The argument src is one of
|
|
// the reply types listed in the section `Executing Commands`.
|
|
//
|
|
// An error should be returned if the value cannot be stored without
|
|
// loss of information.
|
|
RedisScan(src interface{}) error
|
|
}
|