hunt.sql.dialect.mysql.ast.statement.MySqlPartitionByKey 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.dialect.mysql.ast.statement.MySqlPartitionByKey;
17 
18 
19 import hunt.collection;
20 import hunt.sql.ast.SQLObject;
21 
22 import hunt.sql.ast.SQLExpr;
23 import hunt.sql.ast.SQLName;
24 import hunt.sql.ast.SQLPartitionBy;
25 import hunt.sql.dialect.mysql.ast.MySqlObject;
26 import hunt.sql.dialect.mysql.visitor.MySqlASTVisitor;
27 import hunt.sql.visitor.SQLASTVisitor;
28 
29 public class MySqlPartitionByKey : SQLPartitionBy , MySqlObject {
30 
31     alias cloneTo = SQLPartitionBy.cloneTo; 
32     
33     private short algorithm = 2;
34 
35     public short getAlgorithm() {
36         return algorithm;
37     }
38 
39     public void setAlgorithm(short algorithm) {
40         this.algorithm = algorithm;
41     }
42     
43     
44     override  protected void accept0(SQLASTVisitor visitor) {
45         if (cast(MySqlASTVisitor)(visitor) !is null) {
46             accept0(cast(MySqlASTVisitor) visitor);
47         } else {
48             throw new Exception("not support visitor type : " ~ typeof(visitor).stringof);
49         }
50     }
51     
52     override
53     public void accept0(MySqlASTVisitor visitor) {
54         if (visitor.visit(this)) {
55             acceptChild(visitor, cast(List!(SQLObject))columns);
56             acceptChild(visitor, partitionsCount);
57             acceptChild(visitor, cast(List!(SQLObject))(getPartitions()));
58             acceptChild(visitor, subPartitionBy);
59         }
60         visitor.endVisit(this);
61     }
62 
63     public void cloneTo(MySqlPartitionByKey x) {
64         super.cloneTo(x);
65         foreach(SQLExpr column ; columns) {
66             SQLExpr c2 = column.clone();
67             c2.setParent(x);
68             x.columns.add(c2);
69         }
70 	x.setAlgorithm(algorithm);
71     }
72 
73     override public MySqlPartitionByKey clone() {
74         MySqlPartitionByKey x = new MySqlPartitionByKey();
75         cloneTo(x);
76         return x;
77     }
78 }