source: nutchez-0.1/tomcat/webapps/docs/config/globalresources.html @ 66

Last change on this file since 66 was 66, checked in by waue, 15 years ago

NutchEz - an easy way to nutch
File size: 20.1 KB
Line 
1<html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat Configuration Reference - The GlobalNamingResources Component</title><meta value="Remy Maucherat" name="author"><meta value="remm@apache.org" name="email"><meta value="Yoav Shapira" name="author"><meta value="yoavs@apache.org" name="email"></head><body vlink="#525D76" alink="#525D76" link="#525D76" text="#000000" bgcolor="#ffffff"><table cellspacing="0" width="100%" border="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img border="0" alt="
2    The Apache Tomcat Servlet/JSP Container
3  " align="right" src="../images/tomcat.gif"></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 border="0" alt="Apache Logo" align="right" src="../images/asf-logo.gif"></a></td></tr></table><table cellspacing="4" width="100%" border="0"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr size="1" noshade></td></tr><tr><!--LEFT SIDE NAVIGATION--><td nowrap="true" valign="top" width="20%"><p><strong>Links</strong></p><ul><li><a href="../index.html">Docs Home</a></li><li><a href="index.html">Config Ref. Home</a></li></ul><p><strong>Top Level Elements</strong></p><ul><li><a href="server.html">Server</a></li><li><a href="service.html">Service</a></li></ul><p><strong>Executors</strong></p><ul><li><a href="executor.html">Executor</a></li></ul><p><strong>Connectors</strong></p><ul><li><a href="http.html">HTTP</a></li><li><a href="ajp.html">AJP</a></li></ul><p><strong>Containers</strong></p><ul><li><a href="context.html">Context</a></li><li><a href="engine.html">Engine</a></li><li><a href="host.html">Host</a></li><li><a href="cluster.html">Cluster</a></li></ul><p><strong>Nested Components</strong></p><ul><li><a href="globalresources.html">Global Resources</a></li><li><a href="loader.html">Loader</a></li><li><a href="manager.html">Manager</a></li><li><a href="realm.html">Realm</a></li><li><a href="resources.html">Resources</a></li><li><a href="valve.html">Valve</a></li></ul><p><strong>Cluster Elements</strong></p><ul><li><a href="cluster.html">Cluster</a></li><li><a href="cluster-manager.html">Manager</a></li><li><a href="cluster-channel.html">Channel</a></li><li><a href="cluster-membership.html">Channel/Membership</a></li><li><a href="cluster-sender.html">Channel/Sender</a></li><li><a href="cluster-receiver.html">Channel/Receiver</a></li><li><a href="cluster-interceptor.html">Channel/Interceptor</a></li><li><a href="cluster-valve.html">Valve</a></li><li><a href="cluster-deployer.html">Deployer</a></li><li><a href="cluster-listener.html">ClusterListener</a></li></ul><p><strong>Global Settings</strong></p><ul><li><a href="systemprops.html">System properties</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td align="left" valign="top" width="80%"><table cellspacing="4" width="100%" border="0"><tr><td valign="top" align="left"><h1>Apache Tomcat Configuration Reference</h1><h2>The GlobalNamingResources Component</h2></td><td nowrap="true" valign="top" align="right"><small><a href="printer/globalresources.html"><img alt="Printer Friendly Version" border="0" src="../images/printer.gif"><br>print-friendly<br>version
4                    </a></small></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Introduction"><strong>Introduction</strong></a></font></td></tr><tr><td><blockquote>
5
6  <p>The <strong>GlobalNamingResources</strong> element defines the global
7  JNDI resources for the <a href="server.html">Server</a>.</p>
8
9  <p>These resources are listed in the server's global JNDI resource context.
10   This context is distinct from the per-web-application JNDI contexts
11  described in
12  the <a href="../jndi-resources-howto.html">JNDI Resources HOW-TO</a>.
13  The resources defined in this element are <strong>not</strong> visible in
14  the per-web-application contexts unless you explicitly link them with
15  <a href="context.html#Resource Links">&lt;ResourceLink&gt;</a> elements.
16  </p>
17
18</blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Attributes"><strong>Attributes</strong></a></font></td></tr><tr><td><blockquote>
19
20</blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Nested Components"><strong>Nested Components</strong></a></font></td></tr><tr><td><blockquote>
21
22</blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Special Features"><strong>Special Features</strong></a></font></td></tr><tr><td><blockquote>
23
24
25  <table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#828DA6"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Environment Entries"><strong>Environment Entries</strong></a></font></td></tr><tr><td><blockquote>
26
27  <p>You can configure named values that will be made visible to all
28    web applications as environment entry resources by nesting
29    <code>&lt;Environment&gt;</code> entries inside this element. For
30    example, you can create an environment entry like this:</p>
31<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
32&lt;GlobalNamingResources ...&gt;
33  ...
34  &lt;Environment name="maxExemptions" value="10"
35         type="java.lang.Integer" override="false"/&gt;
36  ...
37&lt;/GlobalNamingResources&gt;
38</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr></table></div>
39
40    <p>This is equivalent to the inclusion of the following element in the
41    web application deployment descriptor (<code>/WEB-INF/web.xml</code>):
42    </p>
43<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
44&lt;env-entry&gt;
45  &lt;env-entry-name&gt;maxExemptions&lt;/env-entry-name&gt;
46  &lt;env-entry-value&gt;10&lt;/env-entry-value&gt;
47  &lt;env-entry-type&gt;java.lang.Integer&lt;/env-entry-type&gt;
48&lt;/env-entry&gt;
49</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr></table></div>
50    <p>but does <em>not</em> require modification of the deployment descriptor
51    to customize this value.</p>
52
53    <p>The valid attributes for an <code>&lt;Environment&gt;</code> element
54    are as follows:</p>
55
56    <table cellpadding="5" border="1"><tr><th bgcolor="#023264" width="15%"><font color="#ffffff">Attribute</font></th><th bgcolor="#023264" width="85%"><font color="#ffffff">Description</font></th></tr><tr><td valign="center" align="left"><code>description</code></td><td valign="center" align="left">
57        <p>Optional, human-readable description of this environment entry.</p>
58      </td></tr><tr><td valign="center" align="left"><strong><code>name</code></strong></td><td valign="center" align="left">
59        <p>The name of the environment entry to be created, relative to the
60        <code>java:comp/env</code> context.</p>
61      </td></tr><tr><td valign="center" align="left"><code>override</code></td><td valign="center" align="left">
62        <p>Set this to <code>false</code> if you do <strong>not</strong> want
63        an <code>&lt;env-entry&gt;</code> for the same environment entry name,
64        found in the web application deployment descriptor, to override the
65        value specified here.  By default, overrides are allowed.</p>
66      </td></tr><tr><td valign="center" align="left"><strong><code>type</code></strong></td><td valign="center" align="left">
67        <p>The fully qualified Java class name expected by the web application
68        for this environment entry.  Must be one of the legal values for
69        <code>&lt;env-entry-type&gt;</code> in the web application deployment
70        descriptor:  <code>java.lang.Boolean</code>,
71        <code>java.lang.Byte</code>, <code>java.lang.Character</code>,
72        <code>java.lang.Double</code>, <code>java.lang.Float</code>,
73        <code>java.lang.Integer</code>, <code>java.lang.Long</code>,
74        <code>java.lang.Short</code>, or <code>java.lang.String</code>.</p>
75      </td></tr><tr><td valign="center" align="left"><strong><code>value</code></strong></td><td valign="center" align="left">
76        <p>The parameter value that will be presented to the application
77        when requested from the JNDI context.  This value must be convertable
78        to the Java type defined by the <code>type</code> attribute.</p>
79      </td></tr></table>
80
81  </blockquote></td></tr></table>
82
83
84  <table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#828DA6"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Resource Definitions"><strong>Resource Definitions</strong></a></font></td></tr><tr><td><blockquote>
85
86    <p>You can declare the characteristics of resources
87    to be returned for JNDI lookups of <code>&lt;resource-ref&gt;</code> and
88    <code>&lt;resource-env-ref&gt;</code> elements in the web application
89    deployment descriptor by defining them in this element and then linking
90    them with <a href="context.html#Resource Links">&lt;ResourceLink&gt;</a> 
91    elements
92    in the <code><strong>&lt;Context&gt;</strong></code> element. 
93
94    You <strong>MUST</strong> also define any other needed parameters using
95    attributes on the Resource element, to configure
96    the object factory to be used (if not known to Tomcat already), and
97    the properties used to configure that object factory.</p>
98
99    <p>For example, you can create a resource definition like this:</p>
100<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
101&lt;GlobalNamingResources ...&gt;
102  ...
103  &lt;Resource name="jdbc/EmployeeDB" auth="Container"
104            type="javax.sql.DataSource"
105     description="Employees Database for HR Applications"/&gt;
106  ...
107&lt;/GlobalNamingResources&gt;
108</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr></table></div>
109
110    <p>This is equivalent to the inclusion of the following element in the
111    web application deployment descriptor (<code>/WEB-INF/web.xml</code>):</p>
112<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
113&lt;resource-ref&gt;
114  &lt;description&gt;Employees Database for HR Applications&lt;/description&gt;
115  &lt;res-ref-name&gt;jdbc/EmployeeDB&lt;/res-ref-name&gt;
116  &lt;res-ref-type&gt;javax.sql.DataSource&lt;/res-ref-type&gt;
117  &lt;res-auth&gt;Container&lt;/res-auth&gt;
118&lt;/resource-ref&gt;
119</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr></table></div>
120
121    <p>but does <em>not</em> require modification of the deployment
122    descriptor to customize this value.</p>
123
124    <p>The valid attriutes for a <code>&lt;Resource&gt;</code> element
125    are as follows:</p>
126
127    <table cellpadding="5" border="1"><tr><th bgcolor="#023264" width="15%"><font color="#ffffff">Attribute</font></th><th bgcolor="#023264" width="85%"><font color="#ffffff">Description</font></th></tr><tr><td valign="center" align="left"><code>auth</code></td><td valign="center" align="left">
128        <p>Specify whether the web Application code signs on to the
129        corresponding resource manager programatically, or whether the
130        Container will sign on to the resource manager on behalf of the
131        application.  The value of this attribute must be
132        <code>Application</code> or <code>Container</code>.  This
133        attribute is <strong>required</strong> if the web application
134        will use a <code>&lt;resource-ref&gt;</code> element in the web
135        application deployment descriptor, but is optional if the
136        application uses a <code>&lt;resource-env-ref&gt;</code> instead.</p>
137      </td></tr><tr><td valign="center" align="left"><code>description</code></td><td valign="center" align="left">
138        <p>Optional, human-readable description of this resource.</p>
139      </td></tr><tr><td valign="center" align="left"><strong><code>name</code></strong></td><td valign="center" align="left">
140        <p>The name of the resource to be created, relative to the
141        <code>java:comp/env</code> context.</p>
142      </td></tr><tr><td valign="center" align="left"><code>scope</code></td><td valign="center" align="left">
143        <p>Specify whether connections obtained through this resource
144        manager can be shared.  The value of this attribute must be
145        <code>Shareable</code> or <code>Unshareable</code>.  By default,
146        connections are assumed to be shareable.</p>
147      </td></tr><tr><td valign="center" align="left"><strong><code>type</code></strong></td><td valign="center" align="left">
148        <p>The fully qualified Java class name expected by the web
149        application when it performs a lookup for this resource.</p>
150      </td></tr></table>
151
152
153  </blockquote></td></tr></table>
154
155  <table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#828DA6"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Resource Links"><strong>Resource Links</strong></a></font></td></tr><tr><td><blockquote>
156    <p>Use <a href="context.html#Resource Links">&lt;ResourceLink&gt;</a> 
157    elements to link resources from the global context into
158    per-web-application contexts. Here is an example of making a custom
159    factory available to all applications in the server, based on the example
160    definition in the
161    <a href="../jndi-resources-howto.html#Generic JavaBean Resources">
162    JNDI Resource HOW-TO</a>:
163    </p>
164
165    <div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
166     
167        &lt;DefaultContext&gt;
168          &lt;ResourceLink
169            name="bean/MyBeanFactory"
170            global="bean/MyBeanFactory"
171            type="com.mycompany.MyBean"
172          /&gt;
173        &lt;/DefaultContext&gt;
174     
175    </pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td></tr></table></div>
176
177   </blockquote></td></tr></table>
178
179  <table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#828DA6"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Transaction"><strong>Transaction</strong></a></font></td></tr><tr><td><blockquote>
180
181    <p>You can declare the characteristics of the UserTransaction
182    to be returned for JNDI lookup for <code>java:comp/UserTransaction</code>.
183    You <strong>MUST</strong> define an object factory class to instantiate
184    this object as well as the needed resource parameters as attributes of the
185    <code>Transaction</code> 
186    element, and the properties used to configure that object factory.</p>
187
188    <p>The valid attributes for the <code>&lt;Transaction&gt;</code> element
189    are as follows:</p>
190
191    <table cellpadding="5" border="1"><tr><th bgcolor="#023264" width="15%"><font color="#ffffff">Attribute</font></th><th bgcolor="#023264" width="85%"><font color="#ffffff">Description</font></th></tr><tr><td valign="center" align="left"><strong><code>factory</code></strong></td><td valign="center" align="left">
192        <p>The class name for the JNDI object factory.</p>
193      </td></tr></table>
194
195  </blockquote></td></tr></table>
196
197</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr size="1" noshade></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font size="-1" color="#525D76"><em>
198        Copyright &copy; 1999-2008, Apache Software Foundation
199        </em></font></div></td></tr></table></body></html>
Note: See TracBrowser for help on using the repository browser.