hunt.sql.ast.statement.SQLDropViewStatement 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.SQLDropViewStatement;
17 
18 
19 import hunt.collection;
20 
21 import hunt.sql.ast.SQLName;
22 import hunt.sql.ast.SQLObject;
23 import hunt.sql.ast.SQLStatementImpl;
24 import hunt.sql.visitor.SQLASTVisitor;
25 import hunt.sql.ast.statement.SQLExprTableSource;
26 import hunt.sql.ast.statement.SQLDropStatement;
27 
28 public class SQLDropViewStatement : SQLStatementImpl , SQLDropStatement {
29 
30     protected List!SQLExprTableSource tableSources;
31 
32     protected bool                  cascade      = false;
33     protected bool                  restrict     = false;
34     protected bool                  ifExists     = false;
35 
36     public this(){
37         tableSources = new ArrayList!SQLExprTableSource();
38     }
39     
40     public this(string dbType){
41         super (dbType);
42     }
43 
44     public this(SQLName name){
45         this(new SQLExprTableSource(name));
46     }
47 
48     public this(SQLExprTableSource tableSource){
49         this.tableSources.add(tableSource);
50     }
51 
52     public List!SQLExprTableSource getTableSources() {
53         return tableSources;
54     }
55     
56     public void addPartition(SQLExprTableSource tableSource) {
57         if (tableSource !is null) {
58             tableSource.setParent(this);
59         }
60         this.tableSources.add(tableSource);
61     }
62 
63     public void setName(SQLName name) {
64         this.addTableSource(new SQLExprTableSource(name));
65     }
66 
67     public void addTableSource(SQLName name) {
68         this.addTableSource(new SQLExprTableSource(name));
69     }
70 
71     public void addTableSource(SQLExprTableSource tableSource) {
72         tableSources.add(tableSource);
73     }
74 
75     public bool isCascade() {
76         return cascade;
77     }
78 
79     public void setCascade(bool cascade) {
80         this.cascade = cascade;
81     }
82 
83     
84     override  protected void accept0(SQLASTVisitor visitor) {
85         if (visitor.visit(this)) {
86             this.acceptChild!SQLExprTableSource(visitor, tableSources);
87         }
88         visitor.endVisit(this);
89     }
90 
91     public bool isRestrict() {
92         return restrict;
93     }
94 
95     public void setRestrict(bool restrict) {
96         this.restrict = restrict;
97     }
98 
99     public bool isIfExists() {
100         return ifExists;
101     }
102 
103     public void setIfExists(bool ifExists) {
104         this.ifExists = ifExists;
105     }
106 
107     override
108     public List!SQLObject getChildren() {
109         return cast(List!SQLObject)tableSources;
110     }
111 }