The MemoryHandler is a circular buffer in memory. : Log « Log « Java Tutorial

Java Tutorial
1. Language
2. Data Type
3. Operators
4. Statement Control
5. Class Definition
6. Development
7. Reflection
8. Regular Expressions
9. Collections
10. Thread
11. File
12. Generics
13. I18N
14. Swing
15. Swing Event
16. 2D Graphics
17. SWT
18. SWT 2D Graphics
19. Network
20. Database
21. Hibernate
22. JPA
23. JSP
24. JSTL
25. Servlet
26. Web Services SOA
27. EJB3
28. Spring
29. PDF
30. Email
31. J2ME
32. J2EE Application
33. XML
34. Design Pattern
35. Log
36. Security
37. Apache Common
38. Ant
39. JUnit
Java
Java Source Code / Java Documentation
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 Tutorial » Log » Log 
35. 1. 9. The MemoryHandler is a circular buffer in memory.

The MemoryHandler is intended for use as a quick way to store messages.

The messages have to be sent to another handler to write them to an external source. Because the buffer is circular, older log records eventually are overwritten by newer records.

The properties on the MemoryHandler are listed in the following table.

Property NameDescriptionDefault Value
MemoryHandler.levelLog level for the handlerLevel.INFO
MemoryHandler.filterFilter to useundefined
MemoryHandler.sizeSize of the circular buffer (in bytes)1,000
MemoryHandler.pushDefines the push level — the minimum level that will cause messages to be sent to the target handlerLevel.SEVERE
MemoryHandler.targetSpecifies the name of the target Handler class(undefined)


35. 1. Log
35. 1. 1. A full list of levels.
35. 1. 2. Logging a Method Call
35. 1. 3. Logging an Exception
35. 1. 4. The StreamHandler serves chiefly as a base class for all handlers that write log messages to some OutputStream.
35. 1. 5. The ConsoleHandler writes log messages to System.err.
35. 1. 6. The SocketHandler writes log messages to the network over a specified TCP port.
35. 1. 7. The FileHandler is able to write to a single file, or write to a rotating set of files as each file reaches a specified maximum size.
35. 1. 8. The FileHandler class supports filename patterns.
35. 1. 9. The MemoryHandler is a circular buffer in memory.
35. 1. 10. The ErrorManager
35. 1. 11. Information Logging
35. 1. 12. Log to a file
35. 1. 13. Guaranteeing proper class and method names
35. 1. 14. Preventing a Logger from Forwarding Log Records to Its Parent
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.