container/catalina/src/share/org/apache/catalina/session/package.html - tomcat55 - Git at Google

 <body>

 <p>This package contains the standard <code>Manager</code> and
 <code>Session</code> implementations that represent the collection of
 active sessions and the individual sessions themselves, respectively,
 that are associated with a <code>Context</code>.  Additional implementations
 of the <code>Manager</code> interface can be based upon the supplied
 convenience base class (<code>ManagerBase</code>), if desired.  Different
 implementations of <code>Session</code> are possible, but a need for
 functionality beyond what is provided by the standard implementation
 (<code>StandardSession</code>) is not expected.</p>

 <p>The convenience <code>ManagerBase</code> base class is configured by
 setting the following properties:</p>
 <ul>
 <li><b>algorithm</b> - Message digest algorithm to be used when
     generating session identifiers.  This must be the name of an
     algorithm supported by the <code>java.security.MessageDigest</code>
     class on your platform.  [DEFAULT_ALGORITHM]</li>
 <li><b>debug</b> - Debugging detail level for this component. [0]</li>
 <li><b>distributable</b> - Has the web application we are associated with
     been marked as "distributable"?  If it has, attempts to add or replace
     a session attribute object that does not implement the
     <code>java.io.Serializable</code> interface will be rejected.
     [false]</li>
 <li><b>entropy</b> - A string initialization parameter that is used to
     increase the entropy of the seeding of the random number generator
     used in creation of session identifiers.  [NONE]</li>
 <li><b>maxInactiveInterval</b> - The default maximum inactive interval,
     in minutes, for sessions created by this Manager.  The standard
     implementation automatically updates this value based on the configuration
     settings in the web application deployment descriptor.  [60]</li>
 <li><b>randomClass</b> - The Java class name of the random number generator
     to be used when creating session identifiers for this Manager.
     [java.security.SecureRandom]</li>
 </ul>

 <p>The standard implementation of the <code>Manager</code> interface
 (<code>StandardManager</code>) supports the following additional configuration
 properties:</p>
 <ul>
 <li><b>checkInterval</b> - The interval, in seconds, between checks for
     sessions that have expired and should be invalidated.  [60]</li>
 <li><b>maxActiveSessions</b> - The maximum number of active sessions that
     will be allowed, or -1 for no limit.  [-1]</li>
 <li><b>pathname</b> - Pathname to the file that is used to store session
     data persistently across container restarts.  If this pathname is relative,
     it is resolved against the temporary working directory provided by our
     associated Context, if any.  ["sessions.ser"]</li>
 </ul>

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	<body>

	<p>This package contains the standard <code>Manager</code> and
	<code>Session</code> implementations that represent the collection of
	active sessions and the individual sessions themselves, respectively,
	that are associated with a <code>Context</code>. Additional implementations
	of the <code>Manager</code> interface can be based upon the supplied
	convenience base class (<code>ManagerBase</code>), if desired. Different
	implementations of <code>Session</code> are possible, but a need for
	functionality beyond what is provided by the standard implementation
	(<code>StandardSession</code>) is not expected.</p>

	<p>The convenience <code>ManagerBase</code> base class is configured by
	setting the following properties:</p>
	<ul>
	<li><b>algorithm</b> - Message digest algorithm to be used when
	generating session identifiers. This must be the name of an
	algorithm supported by the <code>java.security.MessageDigest</code>
	class on your platform. [DEFAULT_ALGORITHM]</li>
	<li><b>debug</b> - Debugging detail level for this component. [0]</li>
	<li><b>distributable</b> - Has the web application we are associated with
	been marked as "distributable"? If it has, attempts to add or replace
	a session attribute object that does not implement the
	<code>java.io.Serializable</code> interface will be rejected.
	[false]</li>
	<li><b>entropy</b> - A string initialization parameter that is used to
	increase the entropy of the seeding of the random number generator
	used in creation of session identifiers. [NONE]</li>
	<li><b>maxInactiveInterval</b> - The default maximum inactive interval,
	in minutes, for sessions created by this Manager. The standard
	implementation automatically updates this value based on the configuration
	settings in the web application deployment descriptor. [60]</li>
	<li><b>randomClass</b> - The Java class name of the random number generator
	to be used when creating session identifiers for this Manager.
	[java.security.SecureRandom]</li>
	</ul>

	<p>The standard implementation of the <code>Manager</code> interface
	(<code>StandardManager</code>) supports the following additional configuration
	properties:</p>
	<ul>
	<li><b>checkInterval</b> - The interval, in seconds, between checks for
	sessions that have expired and should be invalidated. [60]</li>
	<li><b>maxActiveSessions</b> - The maximum number of active sessions that
	will be allowed, or -1 for no limit. [-1]</li>
	<li><b>pathname</b> - Pathname to the file that is used to store session
	data persistently across container restarts. If this pathname is relative,
	it is resolved against the temporary working directory provided by our
	associated Context, if any. ["sessions.ser"]</li>
	</ul>

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