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| java.lang.Object
 org.directwebremoting.impl.DefaultScriptSessionManager
| DefaultScriptSessionManager | | public class DefaultScriptSessionManager implements ScriptSessionManager(Code) | | A default implementation of ScriptSessionManager.
There are synchronization constraints on this class that could be broken
by subclasses. Specifically anyone accessing either sessionMap
or pageSessionMap must be holding the sessionLock.
In addition you should note that
DefaultScriptSession and
DefaultScriptSessionManager make calls to each other and you should
take care not to break any constraints in inheriting from these classes.
author:
Joe Walker [joe at getahead dot ltd dot uk] |
| ATTRIBUTE_HTTPSESSIONID | | final public static String ATTRIBUTE_HTTPSESSIONID(Code) | | Use of this attribute is currently discouraged, we may make this public
in a later release. Until then, it may change or be removed without warning.
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| ATTRIBUTE_PAGE | | final public static String ATTRIBUTE_PAGE(Code) | | Use of this attribute is currently discouraged, we may make this public
in a later release. Until then, it may change or be removed without warning.
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| DEFAULT_SESSION_CHECK_TIME | | final protected static long DEFAULT_SESSION_CHECK_TIME(Code) | | By default we check for sessions that need expiring every 30 seconds
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| pageNormalizer | | protected PageNormalizer pageNormalizer(Code) | | How we turn pages into the canonical form.
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| scriptSessionCheckTime | | protected long scriptSessionCheckTime(Code) | | How often do we check for script sessions that need timing out
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| sessionLock | | final protected Object sessionLock(Code) | | What we synchronize against when we want to access either sessionMap or
pageSessionMap
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| DefaultScriptSessionManager | | public DefaultScriptSessionManager()(Code) | | Setup a timer that will invalidate sessions
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| associateScriptSessionAndHttpSession | | protected void associateScriptSessionAndHttpSession(RealScriptSession scriptSession, String httpSessionId)(Code) | | Link a script session and an http session in some way
Exactly what we should do here is still something of a mystery. We don't
really have much experience on the best way to handle this, so currently
we're just setting a script session attribute that points at the
http session id, and not exposing it.
This method is an ideal point to override and do something better.
Parameters:
scriptSession - The script session to be linked to an http session
Parameters:
httpSessionId - The http session from the browser with the given scriptSession |
| associateScriptSessionAndPage | | protected void associateScriptSessionAndPage(RealScriptSession scriptSession, String page)(Code) | | Link a script session to a web page.
This allows people to call
ServerContext.getScriptSessionsByPage(String) This method is an ideal point to override and do something better.
Parameters:
scriptSession - The script session to be linked to a page
Parameters:
page - The page (un-normalized) to be linked to |
| checkTimeouts | | protected void checkTimeouts()(Code) | | Do a check on all the known sessions to see if and have timeout and need
removing.
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| fireScriptSessionCreatedEvent | | protected void fireScriptSessionCreatedEvent(ScriptSession scriptSession)(Code) | | This should be called whenever a
ScriptSession is created
Parameters:
scriptSession - The newly created ScriptSession |
| fireScriptSessionDestroyedEvent | | protected void fireScriptSessionDestroyedEvent(ScriptSession scriptSession)(Code) | | This should be called whenever a
ScriptSession is destroyed
Parameters:
scriptSession - The newly destroyed ScriptSession |
| getScriptSessionTimeout | | public long getScriptSessionTimeout()(Code) | | |
| getScriptSessionsByHttpSessionId | | public Collection<RealScriptSession> getScriptSessionsByHttpSessionId(String httpSessionId)(Code) | | Lookup all the windows associated with a given browser
Parameters:
httpSessionId - The browser id to lookup A list of script sessions for each open window |
| invalidate | | protected void invalidate(RealScriptSession scriptSession)(Code) | | Remove the given session from the list of sessions that we manage, and
leave it for the GC vultures to pluck.
Parameters:
scriptSession - The session to get rid of |
| maybeCheckTimeouts | | protected void maybeCheckTimeouts()(Code) | | If we call
DefaultScriptSessionManager.checkTimeouts() too often is could bog things down so
we only check every one in a while (default 30 secs); this checks to see
of we need to check, and checks if we do.
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| setPageNormalizer | | public void setPageNormalizer(PageNormalizer pageNormalizer)(Code) | | Accessor for the PageNormalizer.
Parameters:
pageNormalizer - The new PageNormalizer |
| setScriptSessionCheckTime | | public void setScriptSessionCheckTime(long scriptSessionCheckTime)(Code) | |
Parameters:
scriptSessionCheckTime - the scriptSessionCheckTime to set |
| setScriptSessionTimeout | | public void setScriptSessionTimeout(long scriptSessionTimeout)(Code) | | |
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