hunt.sql.dialect.postgresql.ast.expr.PGPolygonExpr 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.postgresql.ast.expr.PGPolygonExpr;
17 
18 import hunt.sql.ast.SQLExpr;
19 import hunt.sql.ast.SQLObject;
20 import hunt.sql.dialect.postgresql.visitor.PGASTVisitor;
21 import hunt.sql.dialect.postgresql.ast.expr.PGExprImpl;
22 
23 
24 import hunt.collection;
25 
26 
27 public class PGPolygonExpr : PGExprImpl {
28      alias accept0 = PGExprImpl.accept0;
29     private SQLExpr value;
30 
31     override public PGPolygonExpr clone() {
32         PGPolygonExpr x = new PGPolygonExpr();
33         if (value !is null) {
34             x.setValue(value.clone());
35         }
36         return x;
37     }
38 
39     public SQLExpr getValue() {
40         return value;
41     }
42 
43     public void setValue(SQLExpr value) {
44         this.value = value;
45     }
46 
47     override
48     public void accept0(PGASTVisitor visitor) {
49         if (visitor.visit(this)) {
50             acceptChild(visitor, value);
51         }
52         visitor.endVisit(this);
53     }
54 
55     override public List!(SQLObject) getChildren() {
56         return Collections.singletonList!(SQLObject)(value);
57     }
58 
59     override
60     public size_t toHash() @trusted nothrow {
61          int prime = 31;
62         size_t result = 1;
63         result = prime * result + ((value is null) ? 0 : (cast(Object)value).toHash());
64         return result;
65     }
66 
67     override
68     public bool opEquals(Object obj) {
69         if (this == obj) {
70             return true;
71         }
72         if (obj is null) {
73             return false;
74         }
75         if ( typeid(this) != typeid(obj)) {
76             return false;
77         }
78         PGPolygonExpr other = cast(PGPolygonExpr) obj;
79         if (value is null) {
80             if (other.value !is null) {
81                 return false;
82             }
83         } else if (!(cast(Object)(value)).opEquals(cast(Object)(other.value))) {
84             return false;
85         }
86         return true;
87     }
88 
89 }
90