github.com/jbking/gohan@v0.0.0-20151217002006-b41ccf1c2a96/sync/sync.go (about)

     1  // Copyright (C) 2015 NTT Innovation Institute, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
    12  // implied.
    13  // See the License for the specific language governing permissions and
    14  // limitations under the License.
    15  
    16  package sync
    17  
    18  //Sync is a interface for sync servers
    19  type Sync interface {
    20  	HasLock(path string) bool
    21  	Lock(path string, block bool) error
    22  	Unlock(path string) error
    23  	Fetch(path string) (interface{}, error)
    24  	Update(path, json string) error
    25  	Delete(path string) error
    26  	Watch(path string, responseChan chan *Event, stopChan chan bool) error
    27  }
    28  
    29  //Event is a struct for Watch response
    30  type Event struct {
    31  	Action string
    32  	Data   map[string]interface{}
    33  	Key    string
    34  }