420 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
		
		
			
		
	
	
			420 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
| 
								 | 
							
								<html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Catalina Functional Specifications - Administrative Apps - Administered Objects</title><meta name="author" value="Craig McClanahan"><meta name="email" value="craigmcc@apache.org"></head><body bgcolor="#ffffff" text="#000000" link="#525D76" alink="#525D76" vlink="#525D76"><table border="0" width="100%" cellspacing="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img src="../../images/tomcat.gif" align="right" alt="
							 | 
						||
| 
								 | 
							
								      Catalina Functional Specifications
							 | 
						||
| 
								 | 
							
								    " border="0"></a></td><td><font face="arial,helvetica,sanserif"><h1>Apache Tomcat 6.0</h1></font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img src="../../images/asf-logo.gif" align="right" alt="Apache Logo" border="0"></a></td></tr></table><table border="0" width="100%" cellspacing="4"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" nowrap="true"><p><strong>Links</strong></p><ul><li><a href="../../index.html">Docs Home</a></li><li><a href="index.html">Functional Specs</a></li></ul><p><strong>Administrative Apps</strong></p><ul><li><a href="fs-admin-apps.html">Overall Requirements</a></li><li><a href="mbean-names.html">Tomcat MBean Names</a></li><li><a href="fs-admin-objects.html">Administered Objects</a></li><li><a href="fs-admin-opers.html">Supported Operations</a></li></ul><p><strong>Internal Servlets</strong></p><ul><li><a href="fs-default.html">Default Servlet</a></li><li><a href="fs-invoker.html">Invoker Servlet</a></li></ul><p><strong>Realm Implementations</strong></p><ul><li><a href="fs-jdbc-realm.html">JDBC Realm</a></li><li><a href="fs-jndi-realm.html">JNDI Realm</a></li><li><a href="fs-memory-realm.html">Memory Realm</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left"><table border="0" width="100%" cellspacing="4"><tr><td align="left" valign="top"><h1>Catalina Functional Specifications</h1><h2>Administrative Apps - Administered Objects</h2></td><td align="right" valign="top" nowrap="true"><small><a href="printer/fs-admin-objects.html"><img src="../../images/printer.gif" border="0" alt="Printer Friendly Version"><br>print-friendly<br>version
							 | 
						||
| 
								 | 
							
								                    </a></small></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Administered Objects Overview"><strong>Administered Objects Overview</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<p>This document defines the <em>Administered Objects</em> that represent
							 | 
						||
| 
								 | 
							
								the internal architectural components of the Catalina servlet container.
							 | 
						||
| 
								 | 
							
								Associated with each is a set of <a href="fs-admin-opers.html">Supported
							 | 
						||
| 
								 | 
							
								Operations</a> that can be performed when the administrative application is
							 | 
						||
| 
								 | 
							
								"focused" on a particular configurable object.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<p>The following Administered Objects are defined:</p>
							 | 
						||
| 
								 | 
							
								<ul>
							 | 
						||
| 
								 | 
							
								<li><a href="#Access Logger">Access Logger</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Connector">Connector</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Context">Context</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Default Context">Default Context</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Default Deployment Descriptor">Default Deployment Descriptor</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Engine">Engine</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Environment Entry">Environment Entry</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Host">Host</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#JDBC Resource">JDBC Resource</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Loader">Loader</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Manager">Manager</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Realm">Realm</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Request Filter">Request Filter</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Server">Server</a></li>
							 | 
						||
| 
								 | 
							
								<li><a href="#Service">Service</a></li>
							 | 
						||
| 
								 | 
							
								</ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Access Logger"><strong>Access Logger</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>An <em>Access Logger</em> is an optional <code>Valve</code> that can
							 | 
						||
| 
								 | 
							
								  create request access logs in the same formats as those provided by
							 | 
						||
| 
								 | 
							
								  web servers.  Such access logs are useful input to hit count and user
							 | 
						||
| 
								 | 
							
								  access tracking analysis programs.  An Access Logger can be attached to
							 | 
						||
| 
								 | 
							
								  an <em>Engine</em>, a <em>Host</em>, a <em>Context</em>, or a <em>Default
							 | 
						||
| 
								 | 
							
								  Context</em>.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>The standard component implementing an <em>Access Logger</em> is
							 | 
						||
| 
								 | 
							
								  <code>org.apache.catalina.valves.AccessLogValve</code>.  It supports the
							 | 
						||
| 
								 | 
							
								  following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>directory</code> - Absolute or relative (to $CATALINA_HOME) path
							 | 
						||
| 
								 | 
							
								      of the directory into which access log files are created.
							 | 
						||
| 
								 | 
							
								      [logs].</li>
							 | 
						||
| 
								 | 
							
								  <li><code>pattern</code> - Pattern string defining the fields to be
							 | 
						||
| 
								 | 
							
								      included in the access log output, or "common" for the standard
							 | 
						||
| 
								 | 
							
								      access log pattern.  See
							 | 
						||
| 
								 | 
							
								      <code>org.apache.catalina.valves.AccessLogValve</code> for more
							 | 
						||
| 
								 | 
							
								      information.  [common]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>prefix</code> - Prefix added to the beginning of each log file
							 | 
						||
| 
								 | 
							
								      name created by this access logger.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>resolveHosts</code> - Should IP addresses be resolved to host
							 | 
						||
| 
								 | 
							
								      names in the log?  [false]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>suffix</code> - Suffix added to the end of each log file name
							 | 
						||
| 
								 | 
							
								      created by this access logger.</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Connector"><strong>Connector</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Connector</em> is the representation of a communications endpoint
							 | 
						||
| 
								 | 
							
								  by which requests are received from (and responses returned to) a Tomcat
							 | 
						||
| 
								 | 
							
								  client.  The administrative applications shall support those connectors
							 | 
						||
| 
								 | 
							
								  that are commonly utilized in Tomcat installations, as described in detail
							 | 
						||
| 
								 | 
							
								  below.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>For standalone use, the standard connector supporting the HTTP/1.1
							 | 
						||
| 
								 | 
							
								  protocol is <code>org.apache.catalina.connectors.http.HttpConnector</code>.
							 | 
						||
| 
								 | 
							
								  It supports the following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>acceptCount</code> - The maximum queue length of incoming
							 | 
						||
| 
								 | 
							
								      connections that have not yet been accepted.  [10]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>address</code> - For servers with more than one IP address, the
							 | 
						||
| 
								 | 
							
								      address upon which this connector should listen.  [All Addresses]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>bufferSize</code> - Default input buffer size (in bytes) for
							 | 
						||
| 
								 | 
							
								      requests created by this Connector.  [2048]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>enableLookups</code> - Should we perform DNS lookups on remote
							 | 
						||
| 
								 | 
							
								      IP addresses when <code>request.getRemoteHost()</code> is called?
							 | 
						||
| 
								 | 
							
								      [true]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>maxProcessors</code> - The maximum number of processor threads
							 | 
						||
| 
								 | 
							
								      supported by this connector.  [20]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>minProcessors</code> - The minimum number of processor threads
							 | 
						||
| 
								 | 
							
								      to be created at container startup.  [5]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>port</code> - TCP/IP port number on which this Connector should
							 | 
						||
| 
								 | 
							
								      listen for incoming requests. [8080]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>proxyName</code> - Host name to be returned when an application
							 | 
						||
| 
								 | 
							
								      calls <code>request.getServerName()</code>.  [Value of Host: header]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>proxyPort</code> - Port number to be returned when an application
							 | 
						||
| 
								 | 
							
								      calls <code>request.getServerPort()</code>.  [Same as <code>port</code>]
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Context"><strong>Context</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Context</em> is the representation of an individual web application,
							 | 
						||
| 
								 | 
							
								  which is associated with a corresponding <em>Host</em>.  Note that the
							 | 
						||
| 
								 | 
							
								  administrable properties of a <em>Context</em> do <strong>not</strong>
							 | 
						||
| 
								 | 
							
								  include any settings from inside the web application deployment descriptor
							 | 
						||
| 
								 | 
							
								  for that application.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>The standard component implementing a <em>Context</em> is
							 | 
						||
| 
								 | 
							
								  <code>org.apache.catalina.core.StandardContext</code>.  It supports the
							 | 
						||
| 
								 | 
							
								  following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>cookies</code> - Should be use cookies for session identifier
							 | 
						||
| 
								 | 
							
								      communication?  [true]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>crossContext</code> - Should calls to
							 | 
						||
| 
								 | 
							
								      <code>ServletContext.getServletContext()</code> return the actual
							 | 
						||
| 
								 | 
							
								      context responsible for the specified path?  [false]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>docBase</code> - The absolute or relative (to the
							 | 
						||
| 
								 | 
							
								      <code>appBase</code> of our owning <em>Host</em>) pathname of a
							 | 
						||
| 
								 | 
							
								      directory containing an unpacked web application, or of a web
							 | 
						||
| 
								 | 
							
								      application archive (WAR) file.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>override</code> - Should settings in this <em>Context</em>
							 | 
						||
| 
								 | 
							
								      override corresponding settings in the <em>Default Context</em>?
							 | 
						||
| 
								 | 
							
								      [false]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>path</code> - Context path for this web application, or an empty
							 | 
						||
| 
								 | 
							
								      string for the root application of a <em>Host</em>.  [Inferred from
							 | 
						||
| 
								 | 
							
								      directory or WAR file name]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>reloadable</code> - Should Tomcat monitor classes in the
							 | 
						||
| 
								 | 
							
								      <code>/WEB-INF/classes</code> directory for changes, and reload the
							 | 
						||
| 
								 | 
							
								      application if they occur?  [false]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>useNaming</code> - Should Tomcat provide a JNDI naming context,
							 | 
						||
| 
								 | 
							
								      containing preconfigured entries and resources, corresponding to the
							 | 
						||
| 
								 | 
							
								      requirements of the Java2 Enterprise Edition specification?  [true]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>workDir</code> - Absolute pathname of a scratch directory that is
							 | 
						||
| 
								 | 
							
								      provided to this web application.  [Automatically assigned relative to
							 | 
						||
| 
								 | 
							
								      $CATALINA_HOME/work]</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Context</em> is owned by a parent <em>Host</em>, and is
							 | 
						||
| 
								 | 
							
								  associated with:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li>An optional <em>Access Logger</em> that logs all requests processed
							 | 
						||
| 
								 | 
							
								      by this web application.</li>
							 | 
						||
| 
								 | 
							
								  <li>Zero or more <em>Environment Entries</em> representing environment
							 | 
						||
| 
								 | 
							
								      entries for the JNDI naming context associated with a web
							 | 
						||
| 
								 | 
							
								      application.</li>
							 | 
						||
| 
								 | 
							
								  <li>Zero or more <em>JDBC Resources</em> representing database connection
							 | 
						||
| 
								 | 
							
								      pools associated with a web application.</li>
							 | 
						||
| 
								 | 
							
								  <li>A <em>Loader</em> representing the web application class loader used
							 | 
						||
| 
								 | 
							
								      by this web application.</li>
							 | 
						||
| 
								 | 
							
								  <li>A <em>Manager</em> representing the session manager used by this
							 | 
						||
| 
								 | 
							
								      web application.</li>
							 | 
						||
| 
								 | 
							
								  <li>An optional <em>Realm</em> used to provide authentication and access
							 | 
						||
| 
								 | 
							
								      control information for this web application.</li>
							 | 
						||
| 
								 | 
							
								  <li>Zero or more <em>Request Filters</em> used to limit access to this
							 | 
						||
| 
								 | 
							
								      web application based on remote host name or IP address.</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Default Context"><strong>Default Context</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Default Context</em> represents a subset of the configurable
							 | 
						||
| 
								 | 
							
								  properties of a <em>Context</em>, and is used to set defaults for those
							 | 
						||
| 
								 | 
							
								  properties when web applications are automatically deployed.  A <em>Default
							 | 
						||
| 
								 | 
							
								  Context</em> object can be associated with an <em>Engine</em> or a
							 | 
						||
| 
								 | 
							
								  <em>Host</em>.  The following configurable properties are supported:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>cookies</code> - Should be use cookies for session identifier
							 | 
						||
| 
								 | 
							
								      communication?  [true]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>crossContext</code> - Should calls to
							 | 
						||
| 
								 | 
							
								      <code>ServletContext.getServletContext()</code> return the actual
							 | 
						||
| 
								 | 
							
								      context responsible for the specified path?  [false]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>reloadable</code> - Should Tomcat monitor classes in the
							 | 
						||
| 
								 | 
							
								      <code>/WEB-INF/classes</code> directory for changes, and reload the
							 | 
						||
| 
								 | 
							
								      application if they occur?  [false]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>useNaming</code> - Should Tomcat provide a JNDI naming context,
							 | 
						||
| 
								 | 
							
								      containing preconfigured entries and resources, corresponding to the
							 | 
						||
| 
								 | 
							
								      requirements of the Java2 Enterprise Edition specification?  [true]</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Default Context</em> is owned by a parent <em>Engine</em> or
							 | 
						||
| 
								 | 
							
								  <em>Host</em>, and is associated with:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li>Zero or more <em>Environment Entries</em> representing environment
							 | 
						||
| 
								 | 
							
								      entries for the JNDI naming context associated with a web
							 | 
						||
| 
								 | 
							
								      application.</li>
							 | 
						||
| 
								 | 
							
								  <li>Zero or more <em>JDBC Resources</em> representing database connection
							 | 
						||
| 
								 | 
							
								      pools associated with a web application.</li>
							 | 
						||
| 
								 | 
							
								  <li>An optional <em>Loader</em> representing default configuration
							 | 
						||
| 
								 | 
							
								      properties for the Loader component of deployed web applications.</li>
							 | 
						||
| 
								 | 
							
								  <li>An optional <em>Manager</em> representing default configuration
							 | 
						||
| 
								 | 
							
								      properties for the Manager component fo deployed web applications.</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Default Deployment Descriptor"><strong>Default Deployment Descriptor</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Default web application characteristics are configured in a special
							 | 
						||
| 
								 | 
							
								  deployment descriptor named <code>$CATALINA_HOME/conf/web.xml</code>.  This
							 | 
						||
| 
								 | 
							
								  section describes the configurable components that may be stored there.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - Complete the description of default servlets,
							 | 
						||
| 
								 | 
							
								  default mappings, default MIME types, and so on.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Engine"><strong>Engine</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>An <em>Engine</em> is the representation of the entire Catalina
							 | 
						||
| 
								 | 
							
								  servlet container, and processes all requests for all of the associated
							 | 
						||
| 
								 | 
							
								  virtual hosts and web applications.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>The standard component implementing an <em>Engine</em> is
							 | 
						||
| 
								 | 
							
								  <code>org.apache.catalina.core.StandardEngine</code>.  It supports the
							 | 
						||
| 
								 | 
							
								  following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>defaultHost</code> - Name of the <em>Host</em> to which requests
							 | 
						||
| 
								 | 
							
								      will be directed if the requested host is unknown.  [localhost]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>name</code> - Logical name of this engine. [Tomcat Stand-Alone]
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Engine</em> is owned by a parent <em>Service</em>, and is
							 | 
						||
| 
								 | 
							
								  associated with:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li>An optional <em>Access Logger</em> that logs all requests processed
							 | 
						||
| 
								 | 
							
								      by the entire container.</li>
							 | 
						||
| 
								 | 
							
								  <li>A <em>Default Context</em>, representing default properties of a
							 | 
						||
| 
								 | 
							
								      <em>Context</em> for automatically deployed applications for all
							 | 
						||
| 
								 | 
							
								      associated <em>Hosts</em> (unless overridden by a subordinate
							 | 
						||
| 
								 | 
							
								      component).</li>
							 | 
						||
| 
								 | 
							
								  <li>One or more <em>Hosts</em> representing individual virtual hosts
							 | 
						||
| 
								 | 
							
								      supported by this container.</li>
							 | 
						||
| 
								 | 
							
								  <li>A <em>Realm</em> used to provide authentication and access control
							 | 
						||
| 
								 | 
							
								      information for all virtual hosts and web applications (unless
							 | 
						||
| 
								 | 
							
								      overridden by a subordinate component).</li>
							 | 
						||
| 
								 | 
							
								  <li>Zero or more <em>Request Filters</em> used to limit access to the
							 | 
						||
| 
								 | 
							
								      entire container based on remote host name or IP address.</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Environment Entry"><strong>Environment Entry</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>An <em>Environment Entry</em> is the representation of a
							 | 
						||
| 
								 | 
							
								  <code><env-entry></code> element from a web application deployment
							 | 
						||
| 
								 | 
							
								  descriptor.  It will cause the creation of a corresponding entry in the
							 | 
						||
| 
								 | 
							
								  JNDI naming context provided to the corresponding <em>Context</em>.  The
							 | 
						||
| 
								 | 
							
								  following configurable properties are supported:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>description</code> - Description of this environment entry.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>name</code> - Environment entry name (relative to the
							 | 
						||
| 
								 | 
							
								      <code>java:comp/env</code> context)</li>
							 | 
						||
| 
								 | 
							
								  <li><code>type</code> - Environment entry type (must be one of the fully
							 | 
						||
| 
								 | 
							
								      qualified Java classes listed in the servlet spec).</li>
							 | 
						||
| 
								 | 
							
								  <li><code>value</code> - Environment entry value (must be convertible from
							 | 
						||
| 
								 | 
							
								      String to the specified <code>type</code>.</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Host"><strong>Host</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Host</em> is the representation of an individual virtual host,
							 | 
						||
| 
								 | 
							
								  which has a unique set of associated web applications.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>The standard component implementing a <em>Host</em> is
							 | 
						||
| 
								 | 
							
								  <code>org.apache.catalina.core.StandardHost</code>.  It supports the
							 | 
						||
| 
								 | 
							
								  following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>aliases</code> - Zero or more DNS names that are also associated
							 | 
						||
| 
								 | 
							
								      with this host (for example, a particular host might be named
							 | 
						||
| 
								 | 
							
								      <code>www.mycompany.com</code> with an alias <code>company.com</code>).
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  <li><code>appBase</code> - Absolute or relative (to $CATALINA_HOME) path
							 | 
						||
| 
								 | 
							
								      to a directory from which web applications will be automatically
							 | 
						||
| 
								 | 
							
								      deployed.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>name</code> - DNS Name of the virtual host represented by this
							 | 
						||
| 
								 | 
							
								      object.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>unpackWARs</code> - Should web application archive files
							 | 
						||
| 
								 | 
							
								      deployed by this virtual host be unpacked first?  [true]</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Host</em> is owned by a parent <em>Engine</em>, and is
							 | 
						||
| 
								 | 
							
								  associated with:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li>An optional <em>Access Logger</em> that logs all requests processed
							 | 
						||
| 
								 | 
							
								      by this virtual host.</li>
							 | 
						||
| 
								 | 
							
								  <li>One or more <em>Contexts</em> representing the web applications
							 | 
						||
| 
								 | 
							
								      operating on this <em>Host</em>.</li>
							 | 
						||
| 
								 | 
							
								  <li>A <em>Default Context</em> representing default <em>Context</em>
							 | 
						||
| 
								 | 
							
								      properties for web applications that are automatically deployed
							 | 
						||
| 
								 | 
							
								      by this <em>Host</em>.</li>
							 | 
						||
| 
								 | 
							
								  <li>A optional <em>Realm</em> used to provide authentication and access
							 | 
						||
| 
								 | 
							
								      control information for all web applications associated with this
							 | 
						||
| 
								 | 
							
								      virtual host (unless overridden by a subordinate component).</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - Should we support configuration of the
							 | 
						||
| 
								 | 
							
								  User Web Applications functionality?</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="JDBC Resource"><strong>JDBC Resource</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>JDBC Resources</em> represents a database connection pool (i.e.
							 | 
						||
| 
								 | 
							
								  an implementation of <code>javax.sql.DataSource</code> that will be
							 | 
						||
| 
								 | 
							
								  configured and made available in the JNDI naming context associated with
							 | 
						||
| 
								 | 
							
								  a web application.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - properties of this administered object</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Loader"><strong>Loader</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Loader</em> represents a web application class loader that will
							 | 
						||
| 
								 | 
							
								  be utilized to provide class loading services for a particular
							 | 
						||
| 
								 | 
							
								  <em>Context</em>.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>The standard component implementing a <em>Loader</em> is
							 | 
						||
| 
								 | 
							
								  <code>org.apache.catalina.loader.StandardLoader</code>.  It supports
							 | 
						||
| 
								 | 
							
								  the following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>checkInterval</code> - Number of seconds between checks for
							 | 
						||
| 
								 | 
							
								      modified classes, if automatic reloading is enabled.  [15]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>reloadable</code> - Should this class loader check for modified
							 | 
						||
| 
								 | 
							
								      classes and initiate automatic reloads?  [Set automatically from the
							 | 
						||
| 
								 | 
							
								      <code>reloadable</code> property of the corresponding <em>Context</em>]
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Loader</em> is owned by a parent <em>Context</em>.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Manager"><strong>Manager</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Manager</em> represents a session manager that will be associated
							 | 
						||
| 
								 | 
							
								  with a particular web application.  <strong>FIXME</strong> - Add support
							 | 
						||
| 
								 | 
							
								  for advanced session managers and their associated Stores.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>The standard component implementing a <em>Manager</em> is
							 | 
						||
| 
								 | 
							
								  <code>org.apache.catalina.session.StandardManager</code>.  It supports
							 | 
						||
| 
								 | 
							
								  the following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>checkInterval</code> - Number of seconds between checks for
							 | 
						||
| 
								 | 
							
								      expired sessions.  [60]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>entropy</code> - String initialization parameter used to increase
							 | 
						||
| 
								 | 
							
								      the entropy (initial randomness) of the random number generator used to
							 | 
						||
| 
								 | 
							
								      create session identifiers.  [Inferred from engine, host, and context]
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  <li><code>maxActiveSessions</code> - The maximum number of active sessions
							 | 
						||
| 
								 | 
							
								      that are allowed, or -1 for no limit.  [-1]</li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Manager</em> is owned by a parent <em>Context</em>.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Realm"><strong>Realm</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>A <em>Realm</em> represents a "database" of information about authorized
							 | 
						||
| 
								 | 
							
								  users, their passwords, and the security roles assigned to them.  This will
							 | 
						||
| 
								 | 
							
								  be used by the container in the implementation of container-managed security
							 | 
						||
| 
								 | 
							
								  in accordance with the Servlet Specification.  Several alternative
							 | 
						||
| 
								 | 
							
								  implementations are supported.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><code>org.apache.catalina.realm.MemoryRealm</code> initializes its user
							 | 
						||
| 
								 | 
							
								  information from a simple XML file at startup time.  If changes are made
							 | 
						||
| 
								 | 
							
								  to the information in this file, the corresponding web applications using
							 | 
						||
| 
								 | 
							
								  it must be restarted for the changes to take effect.  It supports the
							 | 
						||
| 
								 | 
							
								  following configurable properties:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>pathname</code> - Absolute or relative (to $CATALINA_HOME) path to
							 | 
						||
| 
								 | 
							
								      the XML file containing our user information.  [conf/tomcat-users.xml]
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><code>org.apache.catalina.realm.JDBCRealm</code> uses a relational
							 | 
						||
| 
								 | 
							
								  database (accessed via JDBC APIs) to contain the user information.  Changes
							 | 
						||
| 
								 | 
							
								  in the contents of this database take effect immediately; however, the roles
							 | 
						||
| 
								 | 
							
								  assigned to a particular user are calculated only when the user initially
							 | 
						||
| 
								 | 
							
								  logs on (and not per request).  The following configurable properties
							 | 
						||
| 
								 | 
							
								  are supported:</p>
							 | 
						||
| 
								 | 
							
								  <ul>
							 | 
						||
| 
								 | 
							
								  <li><code>connectionName</code> - Database username to use when establishing
							 | 
						||
| 
								 | 
							
								      a JDBC connection.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>connectionPassword</code> - Database password to use when
							 | 
						||
| 
								 | 
							
								      establishing a JDBC connection.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>connectionURL</code> - Connection URL to use when establishing
							 | 
						||
| 
								 | 
							
								      a JDBC connection.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>debug</code> - Debugging detail level.  [0]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>digest</code> - Name of the <code>MessageDigest</code> algorithm
							 | 
						||
| 
								 | 
							
								      used to encode passwords in the database, or a zero-length string for
							 | 
						||
| 
								 | 
							
								      no encoding.  [Zero-length String]</li>
							 | 
						||
| 
								 | 
							
								  <li><code>driverName</code> - Fully qualified Java class name of the JDBC
							 | 
						||
| 
								 | 
							
								      driver to be utilized.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>roleNameCol</code> - Name of the column, in the User Roles table,
							 | 
						||
| 
								 | 
							
								      which contains the role name.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>userCredCol</code> - Name of the column, in the Users table,
							 | 
						||
| 
								 | 
							
								      which contains the password (encrypted or unencrypted).</li>
							 | 
						||
| 
								 | 
							
								  <li><code>userNameCol</code> - Name of the column, in both the Users and
							 | 
						||
| 
								 | 
							
								      User Roles tables, that contains the username.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>userRoleTable</code> - Name of the User Roles table, which contains
							 | 
						||
| 
								 | 
							
								      one row per security role assigned to a particular user.  This table must
							 | 
						||
| 
								 | 
							
								      contain the columns specified by the <code>userNameCol</code> and
							 | 
						||
| 
								 | 
							
								      <code>roleNameCol</code> properties.</li>
							 | 
						||
| 
								 | 
							
								  <li><code>userTable</code> - Name of the Users table, which contains one row
							 | 
						||
| 
								 | 
							
								      per authorized user.  This table must contain the columns specified by
							 | 
						||
| 
								 | 
							
								      the <code>userNameCol</code> and <code>userCredCol</code> properties.
							 | 
						||
| 
								 | 
							
								      </li>
							 | 
						||
| 
								 | 
							
								  </ul>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - Should we provide mechanisms to edit the contents
							 | 
						||
| 
								 | 
							
								  of a "tomcat-users.xml" file through the admin applications?</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p>Each <em>Realm</em> is owned by a parent <em>Engine</em>, <em>Host</em>,
							 | 
						||
| 
								 | 
							
								  or <em>Context</em>.</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Request Filter"><strong>Request Filter</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - complete this entry</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Server"><strong>Server</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - complete this entry</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Service"><strong>Service</strong></a></font></td></tr><tr><td><blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								  <p><strong>FIXME</strong> - complete this entry</p>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font color="#525D76" size="-1"><em>
							 | 
						||
| 
								 | 
							
								        Copyright © 1999-2006, Apache Software Foundation
							 | 
						||
| 
								 | 
							
								        </em></font></div></td></tr></table></body></html>
							 |