hunt.sql.ast.statement.SQLExplainStatement source code

1 /*
2  * Copyright 2015-2018 HuntLabs.cn
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 module hunt.sql.ast.statement.SQLExplainStatement;
17 
18 
19 import hunt.collection;
20 
21 import hunt.sql.ast.SQLCommentHint;
22 import hunt.sql.ast.SQLObject;
23 import hunt.sql.ast.SQLStatement;
24 import hunt.sql.ast.SQLStatementImpl;
25 import hunt.sql.visitor.SQLASTVisitor;
26 
27 public class SQLExplainStatement : SQLStatementImpl {
28     private string type;
29     protected SQLStatement       statement;
30     private List!SQLCommentHint hints;
31     
32     public this() {
33         
34     }
35     
36     public this(string dbType) {
37         super (dbType);
38     }
39 
40     public SQLStatement getStatement() {
41         return statement;
42     }
43 
44     public void setStatement(SQLStatement statement) {
45         if (statement !is null) {
46             statement.setParent(this);
47         }
48         this.statement = statement;
49     }
50 
51     public string getType() {
52         return type;
53     }
54 
55     public void setType(string type) {
56         this.type = type;
57     }
58 
59     
60     override  protected void accept0(SQLASTVisitor visitor) {
61         if (visitor.visit(this)) {
62             acceptChild(visitor, statement);
63         }
64         visitor.endVisit(this);
65     }
66 
67     public List!SQLCommentHint getHints() {
68         return hints;
69     }
70 
71     public void setHints(List!SQLCommentHint hints) {
72         this.hints = hints;
73     }
74 
75     override
76     public List!SQLObject getChildren() {
77         List!SQLObject children = new ArrayList!SQLObject();
78         if (statement !is null) {
79             children.add(statement);
80         }
81         return children;
82     }
83 }