clair/vendor/github.com/google/cayley/query/session.go

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2015-11-13 19:11:28 +00:00
// Copyright 2014 The Cayley Authors. All rights reserved.
//
// 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 query
// Defines the graph session interface general to all query languages.
type ParseResult int
const (
Parsed ParseResult = iota
ParseMore
ParseFail
)
type Session interface {
// Return whether the string is a valid expression.
Parse(string) (ParseResult, error)
Execute(string, chan interface{}, int)
Format(interface{}) string
Debug(bool)
}
type HTTP interface {
// Return whether the string is a valid expression.
Parse(string) (ParseResult, error)
// Runs the query and returns individual results on the channel.
Execute(string, chan interface{}, int)
ShapeOf(string) (interface{}, error)
Collate(interface{})
Results() (interface{}, error)
Clear()
}