hunt.sql.ast.statement.SQLDescribeStatement 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.SQLDescribeStatement;
17 
18 import hunt.sql.ast.SQLExpr;
19 import hunt.sql.ast.SQLName;
20 import hunt.sql.ast.SQLObject;
21 import hunt.sql.ast.SQLStatementImpl;
22 import hunt.sql.visitor.SQLASTVisitor;
23 import hunt.sql.ast.statement.SQLObjectType;
24 
25 
26 import hunt.collection;
27 
28 public class SQLDescribeStatement : SQLStatementImpl {
29 
30     protected SQLName object;
31 
32     protected SQLName column;
33 
34     // for odps
35     protected SQLObjectType objectType;
36     protected List!SQLExpr partition;
37 
38     this()
39     {
40         partition = new ArrayList!SQLExpr();
41     }
42 
43     public SQLName getObject() {
44         return object;
45     }
46 
47     public void setObject(SQLName object) {
48         this.object = object;
49     }
50 
51     public SQLName getColumn() {
52         return column;
53     }
54 
55     public void setColumn(SQLName column) {
56         if (column !is null) {
57             column.setParent(this);
58         }
59         this.column = column;
60     }
61 
62     public List!SQLExpr getPartition() {
63         return partition;
64     }
65 
66     public void setPartition(List!SQLExpr partition) {
67         this.partition = partition;
68     }
69 
70     public SQLObjectType getObjectType() {
71         return objectType;
72     }
73 
74     public void setObjectType(SQLObjectType objectType) {
75         this.objectType = objectType;
76     }
77 
78     
79     override  protected void accept0(SQLASTVisitor visitor) {
80         if (visitor.visit(this)) {
81             acceptChild(visitor, object);
82             acceptChild(visitor, column);
83         }
84         visitor.endVisit(this);
85     }
86 
87     override
88     public List!SQLObject getChildren() {
89         // return Arrays.asList(this.object, column);
90         List!SQLObject ls = new ArrayList!SQLObject();
91         ls.add(this.object);
92         ls.add(column);
93         return ls;
94     }
95 }