OSCache - Index

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#### 0-9 | #### A API Usage Beside the JSP tag library JSP Tags and the CacheFilter you can use OSCache through its straightforward API. You can use the GeneralCacheAdministrator http://www.opensymphony.com/oscache/api/com/opensymphony/oscache/general/GeneralCacheAdministrator.html to create, flush ...
#### B | #### C CacheFilter OSCache comes with a servlet filter that enables you to transparently cache entire pages of your website, and even binary files. Caching of binary files is extremely useful when they are generated dynamically, e.g. PDF files or images. A tutorial CacheFilter Tutorial ... CacheFilter Tutorial Introduction OSCache comes with a servlet filter that enables you to transparently cache entire pages of your website, and even binary files. Caching of binary files is extremely useful when they are generated dynamically, e.g. PDF files or images. In addition by using ... Chain Caching Model Discussion Lars wrote: Would it be possible to use the intercepting filter pattern to support all possible cache models with a lot of combination capabilities? It's possible to define the capacity for each cache etc. DiskPersistence, SoftReferenceCache etc. would implement the Command interface ... Change Log Release Notes 2007 OSCache 2.4.1 OSCache 2.4 2006 OSCache 2.3.2 OSCache 2.3.1 OSCache 2.3 2005 OSCache 2.2 OSCache 2.2 RC OSCache 2.1.1 OSCache 2.1 2004 OSCache 2.0.2 2003 OSCache 2.0.1 ... Clustering New in OSCache 2.0 is support for clustering of caches. OSCache currently ships with implementations that allow you to use either JavaGroups or JMS as the underlying broadcast protocol. Caches across a cluster only broadcast messages when flush events occur. This means ... Complete Change Log OSCache 2.4.1 OSCache 2.4 OSCache 2.3.2 OSCache 2.3.1 OSCache 2.3 OSCache 2.2 Final OSCache 2.2 RC OSCache 2.1.1 OSCache 2.1 OSCache 2.0.2 OSCache 2.0.1 OSCache 2.0 OSCache 2.0 beta 2 ... Configuration guide only covers the configuration of OSCache by using the oscache.properties file. To see how to install OSCache and where to place the oscache.properties file, see the Installation Guide. The following properties are able to be set in the oscache.properties file: cache.memory Valid values are true or false ... Cron Expressions Prior to version 2.0 of OSCache, content expiry could only be specified in terms of how long a piece of content had been in the cache, ie, it was based on the age of the content. If you needed to expire it at a particular time of day or on a specific date, you ...
#### D Documentation 1. Overview # What is OSCache # License # Feature List Details on OSCache's features and how they are best used. # Requirements What is required to run OSCache. # FAQ Frequently Asked Questions about OSCache. # OSCache in the Wild A list of sites that are using OSCache ... | #### E
#### F FAQ Got a question you'd like to ask? Ask us and we'll add it to the FAQ. Questions What can I use OSCache for exactly? #uses Where is the data cached? #data Can OSCache cache Java objects rather than portions ... Feature List OSCache Features Fast inmemory caching OSCache allows you to store dynamic content (eg for 30 minutes) in memory. Each further request is served directly from the memory cache, resulting in dramatic speed increases. The cache is keyed programmatically ... | #### G
#### H Hibernate Hibernate http://www.hibernate.org/ is a powerful, ultrahigh performance object/relational persistence and query service for Java. Hibernate lets you develop persistent objects following common Java idiom including association, inheritance, polymorphism, composition and the Java collections framework ... Hibernate 2.1 and pre OSCache 2.4 support page is intended to give integration support for Hibernate 2.1 and for pre OSCache 2.4 releases. It's recommended to use the new Hibernate 3.2 Hibernate classes. Hibernate http://www.hibernate.org/ is a powerful, ultrahigh performance object/relational persistence and query service for Java ... Hibernate 2.1 Cache Adapter Patched version of OSCache.java originally created by Mathias Bogaert. import java.util.Properties; import net.sf.hibernate.cache.Cache; import net.sf.hibernate.cache.CacheException; import net.sf.hibernate.cache.Timestamper; import net.sf.hibernate.util.PropertiesHelper; import net.sf.hibernate.util.StringHelper; import com.opensymphony.oscache.base.Config; import com.opensymphony.oscache.base.CacheEntry; import com.opensymphony.oscache.base.NeedsRefreshException; import com.opensymphony.oscache.general.GeneralCacheAdministrator; / Adapter for the OSCache implementation ... Hibernate 2.1 Cache Provider Patched version of OSCacheProvider.java originally created by Mathias Bogaert. import java.util.Properties; import net.sf.hibernate.cache.Cache; import net.sf.hibernate.cache.CacheException; import net.sf.hibernate.cache.CacheProvider; import net.sf.hibernate.cache.Timestamper; import net.sf.hibernate.util.PropertiesHelper; import net.sf.hibernate.util.StringHelper; import com.opensymphony.oscache.base.CacheEntry; import com.opensymphony.oscache.base.Config; / Support for OpenSymphony OSCache. This implementation assumes ... Hibernate 3 Cache Adaptor Patched version of OSCache.java for Hibernate 3 originally created by Mathias Bogaert. import java.util.Properties; import java.util.Map; import org.hibernate.util.PropertiesHelper; import org.hibernate.util.StringHelper; import org.hibernate.cache.; import com.opensymphony.oscache.base.Config; import com.opensymphony.oscache.base.CacheEntry; import com.opensymphony.oscache.base.NeedsRefreshException; import com.opensymphony.oscache.general.GeneralCacheAdministrator; / Adapter for the OSCache implementation ... Hibernate 3 Cache Provider Patched version of OSCacheProvider.java for Hibernate 3.0 originally created by Mathias Bogaert. import java.util.Properties; import org.hibernate.util.PropertiesHelper; import org.hibernate.util.StringHelper; import org.hibernate.cache.; import com.opensymphony.oscache.base.CacheEntry; import com.opensymphony.oscache.base.Config; / Support for OpenSymphony OSCache. This implementation assumes that identifiers have wellbehaved Home Welcome to the OSCache wiki. OSCache is a caching solution that includes a JSP tag library and set of classes to perform fine grained dynamic caching of JSP content, servlet responses or arbitrary objects. It provides both in memory and persistent on disk caches, and can ... | #### I Index Installation Guide installation guide shows you how to configure OSCache 2.4 for use inside your JSP pages. It assumes you have downloaded the latest version https://oscache.dev.java.net/servlets/ProjectDocumentList, which requires at least Java 1.4 and a Servlet 2.3 ...
#### J JMX Monitoring New in OSCache 2.4 is support for JMX monitoring and administration via the Spring Framework http://www.springframework.org. In oscache.properties, enable the statistic listener: cache.event.listeners= com.opensymphony.oscache.extra.StatisticListenerImpl Then add this to the Spring application context JSP Tags OSCache comes with a JSP tag library that controls all its major functions. The tags are listed below with descriptions, attributes and examples of use. For instructions on installing OSCache in a web application, see the Installation Guide. You just have to add the following ... | #### K
#### L License All OpenSymphony projects use the OpenSymphony License, which is a modified Apache License. You can find the license at http://www.opensymphony.com/oscache/license.action | #### M
#### N | #### O OSCache 1.0 beta 0 Release Notes (26th November, 2000 by Mike CannonBrookes, mike@atlassian.com) Initial release of OSCache Conceptualised a few things I've been working on over the past month. Added persistent on disk caching and error tolerance (through tag OSCache 1.0 beta 1 Release Notes (20th February, 2001 by Mike CannonBrookes, mike@atlassian.com) Fixed a few bugs. Greatest of which there is no longer a disk leakage from session caches on disk. Also session caching bugs fixed, usecached bugs fixed lots of work ... OSCache 1.0 beta 2 Release Notes (20th March, 2001 by Mike CannonBrookes, mike@atlassian.com) Fixed more bugs. Moved things around so that the CacheAdministrator has more functionality and is now a Singleton (per web app context). This means no more depedency on ServletContextListener to start ... OSCache 1.1 Release Notes (25th March, 2001 by Mike CannonBrookes, mike@atlassian.com) Moved up to 1.1 because a lot of documentation improving and some small bug fixing has been done Javadocs should now be very readable for all classes and methods ... OSCache 1.2 Release Notes (28th March, 2001 by Mike CannonBrookes, mike@atlassian.com) Fixed a large bug that resulted in CacheEntry's not refreshing. Large enough in a Caching library to demand a new point release OSCache 1.2.1 Release Notes (10th May, 2001 by Mike CannonBrookes, mike@atlassian.com) Speed improvements in CacheEntry and CacheAdministrator (by Kesav Kumar kesavk@voquette.com) Fixed DOCTYPE in taglib.tld (also Kesav!) Removed backup / swap / temp files from zip (and changed build file OSCache 1.2.5 Release Notes (18th May, 2001 by Mike CannonBrookes, mike@atlassian.com) Added ability to turn off file caching (just remove or comment out cache.properties) Removed a pesky (but ineffectual) bug where session caches being removed from disk ... OSCache 1.3 Release Notes (9th June, 2001 by Mike CannonBrookes, mike@atlassian.com) Fixed a single bug in the file caching should now work Added property to set the cache key (not sure if this is useful) Cleaned up a lot of the code, refactored slightly so ... OSCache 1.5 Release Notes (6th August, 2001 by Todd Gochenour, tgochenour@peregrine.com) Added boolean "cache.memory" attribute to oscache.properties to eliminate memory consumption and rely strictly on disk storage. Added three interfaces "CacheLog", "CacheProperties", and "CacheContents" to allow plugable implementations for these functions ... OSCache 1.6 Release Notes (5th September, 2001 by Mike CannonBrookes, mike@atlassian.com) Changed the CacheEntry so that it caches Object rather than String (allowing image caching) (Serge Knystautas, sergek@lokitech.com) Cached objects are now serialized to disk so cannot be read ... OSCache 1.6.1 Release Notes (16th September, 2001 by Todd Gochenour, tgochenour@peregrine.com) Removed attribute "encoding" in all areas, since Object serialization stores strings in UTF8 format, encoding is no longer necessary. Added Synchronization to getCacheEntry() to insure multiple threads do ... OSCache 1.7.0 Release Notes (26th September 2001 by Francois Beauregard, fbeauregard@pyxistech.com, and Alain Bergevin, abergevin@pyxistech.com, of Pyxis Technologies Inc.) This version include some refactoring, corrections and new features. Here are the highlights: CacheAdministrator has been split in 3. We have ... OSCache 1.7.1 Release Notes (26th September 2001 by Francois Beauregard, fbeauregard@pyxistech.com, and Alain Bergevin, abergevin@pyxistech.com, of Pyxis Technologies Inc.) Cache Events Persistence mechanism refactored Cache Algorithms FIFO LRU (Limit the size of the cache) AbstractConcurrentReadCache from Doug Lea's ... OSCache 1.7.2 Release Notes (31st October 2001 by Mike CannonBrookes, mike@atlassian.com) Cleaned up all JavaDoc messages to ensure consistency and readability (removed unnecessary CVS tags, added `and
     where needed, added @return and @param to all methods ...
` OSCache 1.7.3 Release Notes (11th November 2001 by Francois Beauregard, fbeauregard@pyxistech.com) TestCacheEntry had a test method with improper name (flush > testFlush) Pluggable entry refresh policy now available in the cache tag OSCache 1.7.4 Release Notes (3rd December 2001 by Francois Beauregard, fbeauregard@pyxistech.com, and Mike CannonBrookes, mike@atlassian.com) Made all servlet cache components serializable (fixes bug reported on list with JRun OSCache 1.7.5 Release Notes (5th January 2002 by Mike CannonBrookes, mike@atlassian.com) Fixed up logging system slightly. All errors should now be logged with logError() and normal messages with log() Fixed bug in build file which put oscache.properties inside ... OSCache 2.0 Release Notes (22nd September 2003 by Chris Miller) Improvements: Minor FastCronParser speedup. Made ClusterNotification constants public. Dropped some of the logging levels from INFO down to DEBUG. Release has been split into two a binary release ... OSCache 2.0 beta 1 Release Notes (19th July 2003 by Chris Miller) New Features: CACHE11 http://jira.opensymphony.com/browse/CACHE11 Cache grouping support. This allows cache entries to be placed into an arbitrary group or groups and flushed with a single flushGroup() call. CACHE30 http ... OSCache 2.0 beta 2 Release Notes (4th August 2003 by Chris Miller) New Features: Now supports JavaGroups version 2.1. JMS Clustering support has been added Romulus Pasca. Clustering code has been refactored. As a result of this, some of the clustering ... OSCache 2.0.1 Release Notes (4th November 2003 by Chris Miller) Improvements: CACHE56 http://jira.opensymphony.com/browse/CACHE56 Refresh period is no longer mandatory. CACHE51 http://jira.opensymphony.com/browse/CACHE51 Added an tag. This allows cache groups to be dynamically added ... OSCache 2.0.2 Release Notes (22nd January 2004 by Mathias Bogaert) Improvements: Website documentation updates. Added OSCache in the Wild. Bug Fixes: CACHE63 http://jira.opensymphony.com/browse/CACHE63 NullPointerException in GeneralCacheAdministrator#destroy(). CACHE44 http://jira.opensymphony.com/browse/CACHE44 Multi threading issues ... OSCache 2.1 Release Notes (18th January 2005 by Andres March) New Features: Added HashDiskPersistenceListner CACHE132 http://jira.opensymphony.com/browse/CACHE132 that hashes file names in order to eliminate nasty characters and overly long names Added property that allows cache entries ... OSCache 2.1.1 Release Notes (1st May 2005 by Andres March) Improvements: The taglib URI was changed to {{http://www.opensymphony.com/oscache}} in CACHE61 http://jira.opensymphony.com/browse/CACHE61 The DiskPersistenceListener escapes '?' now and guarantees that the filenames will be unique based on the cache key, see CACHE110 http ... OSCache 2.2 Release Notes Final (6th November 2005 by Lars Torunski) Additionally to the 2.2 RC OSCache 2.2 RC improvements, the final release was enhanced by: Allow cache group definition in CacheFilter Option to specify when to send ExpiresHeader Allow disabling ... OSCache 2.2 RC Release Notes Release Candidate (18th September 2005 by Lars Torunski) Besides bugs being fixed, major improvements have been made to the CacheFilter in many ways: Default initialization of the last modified header which reduces transaction overhead ... OSCache 2.3 Release Notes (6th March 2006 by Lars Torunski) This release includes additional improvements to the CacheFilter: CRON expressions to expire content at specific dates and/or times Pluggable EntryRefreshPolicy Reduced memory consumption Disk persistence: Faster disk persistence Avoid ... OSCache 2.3.1 Release Notes (19th June 2006 by Lars Torunski) This maintenance release of 2.3 has one enhancement: CacheFilter: Default initialization of the CacheControl maxage Bug fixes: Cache.flushAll(Date flushDate) won't throw NeedsRefreshException when flush date is not yet ... OSCache 2.3.2 Release Notes (23rd July 2006 by Lars Torunski) This maintenance release of 2.3.1 has one enhancement: The removeEntry method in the Cache removes the entry from its groups now Bug fixes: Method addGroupMappings leads to inconsistent memory cache ... OSCache 2.4 Release Notes (1st Mai 2007 by Lars Torunski) New features and enhancements Furthermore the next major release 2.4 enhances the CacheFilter and allows a better integration with the Spring Framework http://www.springframework.org/ and JMX Monitoring. Setting CacheFilter parameters runtime ... OSCache 2.4.1 Release Notes (1st July 2007 by Lars Torunski) This maintenance release of 2.4.1 has two bug fixes: The cacheFlushed method is not being invoked on the CacheEntryEventListener CacheFilter maxage parameter MAXAGENOINIT not set properly JIRA Issue List OSCache in the Wild following are some of the sites that are using OSCache in production. This is far from an exhaustive list of course! If you have or know of a site using OSCache, please let us know so we can add it to the list. While not required, any ...
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#### R Requirements OSCache can be used directly to provide caching for any Java application. Using the OSCache tag library JSP Tags requires Servlet 2.3 and JSP 1.2 support (included in J2EE 1.3) to run properly. There is no dependency on a servlet container if the OSCache ... Roadmap Scope This page and the mailing list https://oscache.dev.java.net/servlets/ProjectMailingListList are provided for discussion purposes about the roadmap of OSCache and discussing new features and improvements. See also the JIRA Road Map http://jira.opensymphony.com/browse/CACHE?report=com.atlassian.jira.plugin.system.project:roadmappanel ... | #### S Spring Configuring a {{GeneralCacheAdministrator}} A GeneralCacheAdministrator API Usage instance that picks up configuration from an oscache.properties Configuration file can be configured within Spring using the following code: Notice that a {{destorymethod ... Statistics Description With the cache event handlers http://www.opensymphony.com/oscache/api/com/opensymphony/oscache/base/events/packagesummary.html a listerner can be implemented to provide cache hits and misses information. You can copy and paste the following code to get a statistic ... SVN and Compiling OSCache SVN The OSCache SVN repository is hosted at http://svn.opensymphony.com/svn/oscache. You can get the sources anonymously by using e.g. Subclipse http://subclipse.tigris.org a Subversion http://subversion.tigris.org Eclipse Plugin. If you want to build OSCache from SVN ...
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#### V | #### W What is OSCache OSCache is a widely used, high performance J2EE caching framework. OSCache solves fundamental problems for dynamic websites: # Caching Dynamic Content Dynamic content of some form must often be executed during each request, but sometimes that content doesn't ...
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