hunt.sql.ast.statement.SQLCommentStatement 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.SQLCommentStatement;
17 
18 import hunt.sql.ast;
19 import hunt.sql.visitor.SQLASTVisitor;
20 import hunt.sql.ast.statement.SQLExprTableSource;
21 
22 import hunt.collection;
23 
24 public class SQLCommentStatement : SQLStatementImpl {
25 
26     public static struct Type {
27         enum Type TABLE = Type("TABLE");
28         enum Type COLUMN = Type("COLUMN");
29 
30         private string _name;
31 
32         this(string name)
33         {
34             _name = name;
35         }
36 
37         @property string name()
38         {
39             return _name;
40         }
41 
42         bool opEquals(const Type h) nothrow {
43             return _name == h._name ;
44         } 
45 
46         bool opEquals(ref const Type h) nothrow {
47             return _name == h._name ;
48         } 
49     }
50 
51     private SQLExprTableSource on;
52     private Type               type;
53     private SQLExpr            comment;
54 
55     public SQLExpr getComment() {
56         return comment;
57     }
58 
59     public void setComment(SQLExpr comment) {
60         this.comment = comment;
61     }
62 
63     public Type getType() {
64         return type;
65     }
66 
67     public void setType(Type type) {
68         this.type = type;
69     }
70 
71     public SQLExprTableSource getOn() {
72         return on;
73     }
74 
75     public void setOn(SQLExprTableSource on) {
76         if (on !is null) {
77             on.setParent(this);
78         }
79         this.on = on;
80     }
81 
82     public void setOn(SQLName on) {
83         this.setOn(new SQLExprTableSource(on));
84     }
85 
86     
87     override  protected void accept0(SQLASTVisitor visitor) {
88         if (visitor.visit(this)) {
89             acceptChild(visitor, on);
90             acceptChild(visitor, comment);
91         }
92         visitor.endVisit(this);
93     }
94 
95     override
96     public List!SQLObject getChildren() {
97         List!SQLObject children = new ArrayList!SQLObject();
98         if (on !is null) {
99             children.add(on);
100         }
101         if (comment !is null) {
102             children.add(comment);
103         }
104         return children;
105     }
106 }