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Java > Open Source Codes > com > db4o > nativequery > expr > cmp > MethodCallValue


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */

21 package com.db4o.nativequery.expr.cmp;
22
23 public class MethodCallValue extends ComparisonOperandDescendant {
24     private String JavaDoc _methodName;
25     private Class JavaDoc[] _paramTypes;
26     private ComparisonOperand[] _args;
27     
28     public MethodCallValue(ComparisonOperandAnchor parent, String JavaDoc name, Class JavaDoc[] paramTypes, ComparisonOperand[] args) {
29         super(parent);
30         _methodName = name;
31         _paramTypes = paramTypes;
32         _args = args;
33     }
34
35     public void accept(ComparisonOperandVisitor visitor) {
36         visitor.visit(this);
37     }
38
39     public String JavaDoc methodName() {
40         return _methodName;
41     }
42
43     public Class JavaDoc[] paramTypes() {
44         return _paramTypes;
45     }
46
47     public ComparisonOperand[] args() {
48         return _args;
49     }
50     
51     public boolean equals(Object JavaDoc obj) {
52         if(!super.equals(obj)) {
53             return false;
54         }
55         MethodCallValue casted=(MethodCallValue)obj;
56         return _methodName.equals(casted._methodName)&&arrayCmp(_paramTypes, casted._paramTypes)&&arrayCmp(_args, casted._args);
57     }
58
59     public int hashCode() {
60         int hc=super.hashCode();
61         hc*=29+_methodName.hashCode();
62         hc*=29+_paramTypes.hashCode();
63         hc*=29+_args.hashCode();
64         return hc;
65     }
66     
67     public String JavaDoc toString() {
68         String JavaDoc str=super.toString()+"."+_methodName+"(";
69         for (int paramIdx = 0; paramIdx < _paramTypes.length; paramIdx++) {
70             if(paramIdx>0) {
71                 str+=",";
72             }
73             str+=_paramTypes[paramIdx]+":"+_args[paramIdx];
74         }
75         str+=")";
76         return str;
77     }
78     
79     private boolean arrayCmp(Object JavaDoc[] a,Object JavaDoc[] b) {
80         if(a.length!=b.length) {
81             return false;
82         }
83         for (int paramIdx = 0; paramIdx < a.length; paramIdx++) {
84             if(!a[paramIdx].equals(b[paramIdx])) {
85                 return false;
86             }
87         }
88         return true;
89     }
90 }
91
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