Source Code Cross Referenced for ExtensiblePyObjectAdapter.java in  » Scripting » jython » org » python » core » adapter » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Scripting » jython » org.python.core.adapter 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        package org.python.core.adapter;
02:
03:        import java.util.ArrayList;
04:        import java.util.HashMap;
05:        import java.util.Iterator;
06:        import java.util.List;
07:        import java.util.Map;
08:
09:        import org.python.core.PyObject;
10:
11:        /**
12:         * A PyObjectAdapter attempts to adapt a Java Object with three user fillable
13:         * groups of adapters: preClass, class and postClass.
14:         * 
15:         */
16:        public class ExtensiblePyObjectAdapter implements  PyObjectAdapter {
17:
18:            /**
19:             * @return true if a preClass, postClass or class adapter can handle this
20:             */
21:            public boolean canAdapt(Object o) {
22:                return findAdapter(preClassAdapters, o) != null
23:                        || classAdapters.containsKey(o.getClass())
24:                        || findAdapter(postClassAdapters, o) != null;
25:            }
26:
27:            /**
28:             * Attempts to adapt o using the preClass, class and postClass adapters.
29:             * 
30:             * First each of the preClass adapters is asked in the order of addition if
31:             * they can adapt o. If so, they adapt it. Otherwise, if o.getClass() is
32:             * equal to one of the classes from the added ClassAdapters, that class
33:             * adapter is used. Finally, each of the post class adapters are asked in
34:             * turn if they can adapt o. If so, that adapter handles it. If none can,
35:             * null is returned.
36:             */
37:            public PyObject adapt(Object o) {
38:                PyObjectAdapter adapter = findAdapter(preClassAdapters, o);
39:                if (adapter != null) {
40:                    return adapter.adapt(o);
41:                }
42:
43:                adapter = (PyObjectAdapter) classAdapters.get(o.getClass());
44:                if (adapter != null) {
45:                    return adapter.adapt(o);
46:                }
47:
48:                adapter = findAdapter(postClassAdapters, o);
49:                if (adapter != null) {
50:                    return adapter.adapt(o);
51:                }
52:                return null;
53:            }
54:
55:            /**
56:             * Adds an adapter to the list of adapters to be tried before the
57:             * ClassAdapters.
58:             */
59:            public void addPreClass(PyObjectAdapter adapter) {
60:                preClassAdapters.add(adapter);
61:            }
62:
63:            /**
64:             * Adds a Class handling adapter that will adapt any objects of its Class if
65:             * that object hasn't already been handled by one of the pre class adapters.
66:             */
67:            public void add(ClassAdapter adapter) {
68:                classAdapters.put(adapter.getAdaptedClass(), adapter);
69:            }
70:
71:            /**
72:             * Adds an adapter to the list of adapters to be tried after the
73:             * ClassAdapters.
74:             */
75:            public void addPostClass(PyObjectAdapter converter) {
76:                postClassAdapters.add(converter);
77:            }
78:
79:            private static PyObjectAdapter findAdapter(List l, Object o) {
80:                for (Iterator iter = l.iterator(); iter.hasNext();) {
81:                    PyObjectAdapter adapter = (PyObjectAdapter) iter.next();
82:                    if (adapter.canAdapt(o)) {
83:                        return adapter;
84:                    }
85:                }
86:                return null;
87:            }
88:
89:            private List preClassAdapters = new ArrayList();
90:
91:            private List postClassAdapters = new ArrayList();
92:
93:            private Map classAdapters = new HashMap();
94:
95:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.