<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> |
|
<context-param>
<description>
Comma
separated list of URIs of (additional) faces config files.
(e.g. /WEB-INF/my-config.xml) See JSF 1.0 PRD2,
10.3.2 Attention: You do not need to put
/WEB-INF/faces-config.xml in here.
</description>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>
/WEB-INF/faces-configs/common-faces-config.xml,
/WEB-INF/faces-configs/page1-faces-config.xml,
/WEB-INF/faces-configs/page2-faces-config.xml
</param-value>
</context-param>
|
Follow Divide and Conquer rule:
Do not put all your managed beans, navigations rules in one big file. Consider one faces-config per functions or html page. |
<context-param>
<description>State saving method: "client" or "server" (= default) See JSF Specification 2.5.3
</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param> |
Server is recommended.
Ive tried one day client, but HTML pages were 10Mb big! |
<context-param>
<description>
Only applicable if state saving method is "server" (= default) and if
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION
is true (=default) If true (default) the serialized
state will be compressed before it is written to the session. If
false the state will not be compressed.
</description>
<param-name>
org.apache.myfaces.COMPRESS_STATE_IN_SESSION
</param-name>
<param-value>true</param-value>
</context-param> |
You should always balanced cpu/memory usage.
(Compressing state cost CPU but spare memory...obvious)
|
<context-param>
<description>
Only
applicable if state saving method is "server" (= default).
If true (default) the state will be serialized to a byte
stream before it is written to the session. If false the
state will not be serialized to a byte stream.
</description>
<param-name>
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION
</param-name>
<param-value>false</param-value>
</context-param>
|
Compressing data save memory bytes on server at the cost of more computational power. |
<context-param>
<param-name>
org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION
</param-name>
<param-value>5</param-value>
</context-param> |
Number of back button. Default is 20. far too much. reducing this value decrease memory size. |
<context-param>
<description>
This
parameter tells MyFaces if javascript code should
be allowed in the rendered HTML output. If javascript
is allowed, command_link anchors will have javascript code that submits
the corresponding form. If javascript is not allowed, the state
saving info and nested parameters will beadded as url parameters.
Default: "true"
</description>
<param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
<param-value>false</param-value>
</context-param> |
Nothing special here. Most of the time, webpage are full of javascript. |
<context-param>
<description>The buffer
size to set on the response when the ResponseWriter is generated.
By default the value is -1, which will not assign a buffer size on the
response.
</description>
<param-name>facelets.BUFFER_SIZE</param-name>
<param-value>8192</param-value>
</context-param> |
Try to set the buffer size to the most common page size. |
<context-param>
<param-name>facelets.SKIP_COMMENTS</param-name>
<param-value>true</param-value>
</context-param>
|
In production, no need to let comment in rendered code |
<context-param>
<description>
If
true, rendered HTML code will be formatted, so that it
is "human readable". i.e. additional line separators
and whitespace will be written, that do not influence the
HTML code. Default: "true"
</description>
<param-name>org.apache.myfaces.PRETTY_HTML</param-name>
<param-value>false</param-value>
</context-param>
|
Cpu waste in production.
Beautify your code in eclipse.
Consider instead using Firefox source chart plugin which always beautify and color the source source |
<context-param>
<description>
If
true, a javascript function will be rendered that is
able to restore the former vertical scroll on every
request.
Convenient
feature if you have pages with long lists and you do
not want the browser page to always jump to the top
if you trigger a link or button action that stays on the
same
page. Default: "false"
</description>
<param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
<param-value>true</param-value>
</context-param>
|
|
<context-param>
<description>
Validate managed beans, navigation rules and ensure that forms are not nested.
</description>
<param-name>org.apache.myfaces.VALIDATE</param-name>
<param-value>true</param-value>
</context-param> |
Can be turned off in production, if you have a good testing
team and many deployment stage This kind of errors should not go
un noticed. |
<context-param>
<param-name>facelets.LIBRARIES</param-name>
<param-value>
/WEB-INF/taglib/tomahawk.taglib.xml;
/WEB-INF/taglib/aa.taglib.xml;
/WEB-INF/taglib/your.taglib.xml
</param-value>
</context-param> |
List here all 3rd party and your own tag library |
<context-param>
<param-name>facelets.REFRESH_PERIOD</param-name>
<param-value>2</param-value>
</context-param>
<context-param>
<description>Special Debug Output for Development
</description>
<param-name>facelets.DEVELOPMENT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
|
Using a
facelets.REFRESH_PERIOD >= 1
means that templates
will be reloaded after
a given period if the
file has been modified
on the file-system.
Obvious settings
|
<filter>
<filter-name>extensionsFilter</filter-name>
<filter-class>
org.apache.myfaces.webapp.filter.ExtensionsFilter
</filter-class>
<init-param>
<param-name>uploadMaxFileSize</param-name>
<param-value>100m</param-value>
</init-param>
<init-param>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter> |
Some security settings. Consider settings these values accordingly to your needs. |
<error-page>
<error-code>404</error-code>
<location>/error.jsp</location>
</error-page>
<error-page>
<error-code>500</error-code>
<location>/error.jsp</location>
</error-page>
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/error.jsp</location>
</error-page> |
Standard settings not related to JSF. Never reveal any useful informations in error pages! |
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