/usr/share/doc/libportlet-api-2.0-spec-java/api/javax/portlet/filter/RenderFilter.html is in libportlet-api-2.0-spec-java-doc 1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_20) on Sun Jun 27 09:02:36 UTC 2010 -->
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>
RenderFilter (Java Portlet Specification V2.0 1.0 API)
</TITLE>
<META NAME="date" CONTENT="2010-06-27">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
<SCRIPT type="text/javascript">
function windowTitle()
{
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="RenderFilter (Java Portlet Specification V2.0 1.0 API)";
}
}
</SCRIPT>
<NOSCRIPT>
</NOSCRIPT>
</HEAD>
<BODY BGCOLOR="white" onload="windowTitle();">
<HR>
<!-- ========= START OF TOP NAVBAR ======= -->
<A NAME="navbar_top"><!-- --></A>
<A HREF="#skip-navbar_top" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_top_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
<TR ALIGN="center" VALIGN="top">
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD>
<TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/RenderFilter.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD>
</TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>
<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../javax/portlet/filter/PortletResponseWrapper.html" title="class in javax.portlet.filter"><B>PREV CLASS</B></A>
<A HREF="../../../javax/portlet/filter/RenderRequestWrapper.html" title="class in javax.portlet.filter"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../index.html?javax/portlet/filter/RenderFilter.html" target="_top"><B>FRAMES</B></A>
<A HREF="RenderFilter.html" target="_top"><B>NO FRAMES</B></A>
<SCRIPT type="text/javascript">
<!--
if(window==top) {
document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
}
//-->
</SCRIPT>
<NOSCRIPT>
<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
</NOSCRIPT>
</FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_top"></A>
<!-- ========= END OF TOP NAVBAR ========= -->
<HR>
<!-- ======== START OF CLASS DATA ======== -->
<H2>
<FONT SIZE="-1">
javax.portlet.filter</FONT>
<BR>
Interface RenderFilter</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD><A HREF="../../../javax/portlet/filter/PortletFilter.html" title="interface in javax.portlet.filter">PortletFilter</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public interface <B>RenderFilter</B><DT>extends <A HREF="../../../javax/portlet/filter/PortletFilter.html" title="interface in javax.portlet.filter">PortletFilter</A></DL>
</PRE>
<P>
The <code>RenderFilter</code> is an object that performs filtering
tasks on either the render request to a portlet, or on the render response from
a portlet, or both.
<p>
Filters perform filtering in the <code>doFilter</code> method. Every Filter has
access to a <code>FilterConfig</code> object from which it can obtain
its initialization parameters, a reference to the PortletContext
which it can use, for example, to load resources needed for filtering tasks.
<p>
Filters are configured in the portlet deployment descriptor of a
portlet application.
<P>
<P>
<DL>
<DT><B>Since:</B></DT>
<DD>2.0</DD>
</DL>
<HR>
<P>
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/portlet/filter/RenderFilter.html#doFilter(javax.portlet.RenderRequest, javax.portlet.RenderResponse, javax.portlet.filter.FilterChain)">doFilter</A></B>(<A HREF="../../../javax/portlet/RenderRequest.html" title="interface in javax.portlet">RenderRequest</A> request,
<A HREF="../../../javax/portlet/RenderResponse.html" title="interface in javax.portlet">RenderResponse</A> response,
<A HREF="../../../javax/portlet/filter/FilterChain.html" title="interface in javax.portlet.filter">FilterChain</A> chain)</CODE>
<BR>
The <code>doFilter</code> method of the Filter is called by the
portlet container each time a render request/response pair is passed
through the chain due to a client request for a portlet method
at the end of the chain.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_javax.portlet.filter.PortletFilter"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface javax.portlet.filter.<A HREF="../../../javax/portlet/filter/PortletFilter.html" title="interface in javax.portlet.filter">PortletFilter</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../javax/portlet/filter/PortletFilter.html#destroy()">destroy</A>, <A HREF="../../../javax/portlet/filter/PortletFilter.html#init(javax.portlet.filter.FilterConfig)">init</A></CODE></TD>
</TR>
</TABLE>
<P>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="doFilter(javax.portlet.RenderRequest, javax.portlet.RenderResponse, javax.portlet.filter.FilterChain)"><!-- --></A><H3>
doFilter</H3>
<PRE>
void <B>doFilter</B>(<A HREF="../../../javax/portlet/RenderRequest.html" title="interface in javax.portlet">RenderRequest</A> request,
<A HREF="../../../javax/portlet/RenderResponse.html" title="interface in javax.portlet">RenderResponse</A> response,
<A HREF="../../../javax/portlet/filter/FilterChain.html" title="interface in javax.portlet.filter">FilterChain</A> chain)
throws java.io.IOException,
<A HREF="../../../javax/portlet/PortletException.html" title="class in javax.portlet">PortletException</A></PRE>
<DL>
<DD>The <code>doFilter</code> method of the Filter is called by the
portlet container each time a render request/response pair is passed
through the chain due to a client request for a portlet method
at the end of the chain.
<p>
The <code>FilterChain</code> passed in to this method allows
the Filter to pass on the render request and response to the next
component in the chain.
<p>
The <code>doFilter</code> method of a filter will typically be implemented
following this or some subset of the following pattern:
<ul>
<li>The method examines the request information.</li>
<li>The method may wrap the request object passed in to
its doFilter method with a customized implementation
the request wrapper <code>RenderRequestWrapper</code>
in order to modify request data.</li>
<li>The method may wrap the response object passed in to its
<code>doFilter</code> method with a customized implementation
of the response wrapper <code>RenderResponseWrapper</code>
to modify response data.</li>
<li>The filter may invoke the next component in the filter chain.
The next component may be another filter, or if the filter
making the invocation is the last filter configured in the
deployment descriptor for this chain, the next component
is the target method of the portlet. The invocation of the
next component is effected by calling the <code>doFilter</code>
method on the <code>FilterChain</code> object, and passing in
the request and response with which it was called or passing
in wrapped versions it may have created.
The filter chain's implementation of the <code>doFilter</code>
method, provided by the portlet container, must locate the
next component in the filter chain and invoke its <code>doFilter</code>
method, passing in the appropriate request and response objects.
Alternatively, the filter chain can block the request by not
making the call to invoke the next component, leaving the filter
responsible for filling out the response object.</li>
<li>After invocation of the next filter in the chain, the filter
may examine the response data.</li>
<li>Alternatively, the filter may have thrown an exception to
indicate an error in processing. If the filter throws an
<code>UnavailableException</code> during its <code>doFilter</code>
processing, the portlet container must not attempt continued
processing down the filter chain. It may choose to retry the
whole chain at a later time if the exception is not marked permanent.</li>
<li>When the last filter in the chain has been invoked, the next
component accessed is the target method on the portlet at
the end of the chain.</li>
</ul>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>request</CODE> - the current render request<DD><CODE>response</CODE> - the current render response<DD><CODE>chain</CODE> - the remaining filter chain
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if an IO error occurred in the filter processing
<DD><CODE><A HREF="../../../javax/portlet/PortletException.html" title="class in javax.portlet">PortletException</A></CODE> - if a portlet exception occurred in the filter processing</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>
<!-- ======= START OF BOTTOM NAVBAR ====== -->
<A NAME="navbar_bottom"><!-- --></A>
<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_bottom_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
<TR ALIGN="center" VALIGN="top">
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD>
<TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/RenderFilter.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD>
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD>
</TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>
<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../javax/portlet/filter/PortletResponseWrapper.html" title="class in javax.portlet.filter"><B>PREV CLASS</B></A>
<A HREF="../../../javax/portlet/filter/RenderRequestWrapper.html" title="class in javax.portlet.filter"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../index.html?javax/portlet/filter/RenderFilter.html" target="_top"><B>FRAMES</B></A>
<A HREF="RenderFilter.html" target="_top"><B>NO FRAMES</B></A>
<SCRIPT type="text/javascript">
<!--
if(window==top) {
document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
}
//-->
</SCRIPT>
<NOSCRIPT>
<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
</NOSCRIPT>
</FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->
<HR>
Copyright © 2010. All Rights Reserved.
</BODY>
</HTML>
|