github.com/rohankumardubey/aresdb@v0.0.2-0.20190517170215-e54e3ca06b9c/query/sql/tree/Query.go (about)

     1  //  Copyright (c) 2017-2018 Uber Technologies, 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 implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tree
    16  
    17  import "fmt"
    18  
    19  // Query is query
    20  type Query struct {
    21  	// Statement is IStatement
    22  	IStatement
    23  	// QueryBody is IQueryBody
    24  	QueryBody IQueryBody
    25  	// With is with
    26  	With *With
    27  	// OrderBy is orderby
    28  	OrderBy *OrderBy
    29  	// Limit is limit
    30  	Limit string
    31  }
    32  
    33  // NewQuery creates Query
    34  func NewQuery(location *NodeLocation, with *With, queryBody IQueryBody, order *OrderBy, limit string) *Query {
    35  	if queryBody == nil {
    36  		panic(fmt.Errorf("QueryBody is null at (line:%d, col:%d)", location.Line, location.CharPosition))
    37  	}
    38  
    39  	return &Query{
    40  		IStatement: NewStatement(location),
    41  		QueryBody:  queryBody,
    42  		With:       with,
    43  		OrderBy:    order,
    44  		Limit:      limit,
    45  	}
    46  }
    47  
    48  // Accept accepts visitor
    49  func (n *Query) Accept(visitor AstVisitor, ctx interface{}) interface{} {
    50  	return visitor.VisitQuery(n, ctx)
    51  }