/usr/share/doc/libosgi-compendium-java/api/org/osgi/service/wireadmin/Producer.html is in libosgi-compendium-java-doc 4.3.0-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 | <!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_23) on Wed Nov 09 19:45:53 UTC 2011 -->
<TITLE>
Producer
</TITLE>
<META NAME="date" CONTENT="2011-11-09">
<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="Producer";
}
}
</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="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="../../../../org/osgi/service/wireadmin/Envelope.html" title="interface in org.osgi.service.wireadmin"><B>PREV CLASS</B></A>
<A HREF="../../../../org/osgi/service/wireadmin/Wire.html" title="interface in org.osgi.service.wireadmin"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../../index.html?org/osgi/service/wireadmin/Producer.html" target="_top"><B>FRAMES</B></A>
<A HREF="Producer.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">
org.osgi.service.wireadmin</FONT>
<BR>
Interface Producer</H2>
<HR>
<DL>
<DT><PRE>public interface <B>Producer</B></DL>
</PRE>
<P>
Data Producer, a service that can generate values to be used by
<A HREF="../../../../org/osgi/service/wireadmin/Consumer.html" title="interface in org.osgi.service.wireadmin"><CODE>Consumer</CODE></A> services.
<p>
Service objects registered under the Producer interface are expected to
produce values (internally generated or from external sensors). The value can
be of different types. When delivering a value to a <code>Wire</code> object, the
Producer service should coerce the value to be an instance of one of the
types specified by <A HREF="../../../../org/osgi/service/wireadmin/Wire.html#getFlavors()"><CODE>Wire.getFlavors()</CODE></A>. The classes are specified in
order of preference.
<p>
When the data represented by the Producer object changes, this object should
send the updated value by calling the <code>update</code> method on each of
<code>Wire</code> objects passed in the most recent call to this object's
<A HREF="../../../../org/osgi/service/wireadmin/Producer.html#consumersConnected(org.osgi.service.wireadmin.Wire[])"><CODE>consumersConnected(Wire[])</CODE></A> method. These <code>Wire</code> objects will
pass the value on to the associated <code>Consumer</code> service object.
<p>
The Producer service may use the information in the <code>Wire</code> object's
properties to schedule the delivery of values to the <code>Wire</code> object.
<p>
Producer service objects must register with a <code>service.pid</code> and a
<A HREF="../../../../org/osgi/service/wireadmin/WireConstants.html#WIREADMIN_PRODUCER_FLAVORS"><CODE>WireConstants.WIREADMIN_PRODUCER_FLAVORS</CODE></A> property. It is recommended
that a Producer service object also registers with a
<code>service.description</code> property. Producer service objects must register
with a <A HREF="../../../../org/osgi/service/wireadmin/WireConstants.html#WIREADMIN_PRODUCER_FILTERS"><CODE>WireConstants.WIREADMIN_PRODUCER_FILTERS</CODE></A> property if the
Producer service will be performing filtering instead of the <code>Wire</code>
object.
<p>
If an exception is thrown by a Producer object method, a
<code>WireAdminEvent</code> of type <A HREF="../../../../org/osgi/service/wireadmin/WireAdminEvent.html#PRODUCER_EXCEPTION"><CODE>WireAdminEvent.PRODUCER_EXCEPTION</CODE></A> is
broadcast by the Wire Admin service.
<p>
Security Considerations. Data producing bundles will require
<code>ServicePermission[Producer,REGISTER]</code> to register a Producer service.
In general, only the Wire Admin service should have
<code>ServicePermission[Producer,GET]</code>. Thus only the Wire Admin service may
directly call a Producer service. Care must be taken in the sharing of
<code>Wire</code> objects with other bundles.
<p>
Producer services must be registered with scope names when they can send
different types of objects (composite) to the Consumer service. The Producer
service should have <code>WirePermission</code> for each of these scope names.
<P>
<P>
<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="../../../../org/osgi/service/wireadmin/Producer.html#consumersConnected(org.osgi.service.wireadmin.Wire[])">consumersConnected</A></B>(<A HREF="../../../../org/osgi/service/wireadmin/Wire.html" title="interface in org.osgi.service.wireadmin">Wire</A>[] wires)</CODE>
<BR>
Update the list of <code>Wire</code> objects to which this
<code>Producer</code> object is connected.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/osgi/service/wireadmin/Producer.html#polled(org.osgi.service.wireadmin.Wire)">polled</A></B>(<A HREF="../../../../org/osgi/service/wireadmin/Wire.html" title="interface in org.osgi.service.wireadmin">Wire</A> wire)</CODE>
<BR>
Return the current value of this <code>Producer</code> object.</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="polled(org.osgi.service.wireadmin.Wire)"><!-- --></A><H3>
polled</H3>
<PRE>
java.lang.Object <B>polled</B>(<A HREF="../../../../org/osgi/service/wireadmin/Wire.html" title="interface in org.osgi.service.wireadmin">Wire</A> wire)</PRE>
<DL>
<DD>Return the current value of this <code>Producer</code> object.
<p>
This method is called by a <code>Wire</code> object in response to the
Consumer service calling the <code>Wire</code> object's <code>poll</code> method.
The Producer should coerce the value to be an instance of one of the
types specified by <A HREF="../../../../org/osgi/service/wireadmin/Wire.html#getFlavors()"><CODE>Wire.getFlavors()</CODE></A>. The types are specified in
order of of preference. The returned value should be as new or newer than
the last value furnished by this object.
<p>
Note: This method may be called by a <code>Wire</code> object prior to this
object being notified that it is connected to that <code>Wire</code> object
(via the <A HREF="../../../../org/osgi/service/wireadmin/Producer.html#consumersConnected(org.osgi.service.wireadmin.Wire[])"><CODE>consumersConnected(Wire[])</CODE></A> method).
<p>
If the Producer service returns an <code>Envelope</code> object that has an
unpermitted scope name, then the Wire object must ignore (or remove) the
transfer.
<p>
If the <code>Wire</code> object has a scope set, the return value must be an
array of <code>Envelope</code> objects (<code>Envelope[]</code>). The <code>Wire</code>
object must have removed any <code>Envelope</code> objects that have a scope
name that is not in the Wire object's scope.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>wire</CODE> - The <code>Wire</code> object which is polling this service.
<DT><B>Returns:</B><DD>The current value of the Producer service or <code>null</code> if the
value cannot be coerced into a compatible type. Or an array of
<code>Envelope</code> objects.</DL>
</DD>
</DL>
<HR>
<A NAME="consumersConnected(org.osgi.service.wireadmin.Wire[])"><!-- --></A><H3>
consumersConnected</H3>
<PRE>
void <B>consumersConnected</B>(<A HREF="../../../../org/osgi/service/wireadmin/Wire.html" title="interface in org.osgi.service.wireadmin">Wire</A>[] wires)</PRE>
<DL>
<DD>Update the list of <code>Wire</code> objects to which this
<code>Producer</code> object is connected.
<p>
This method is called when the Producer service is first registered and
subsequently whenever a <code>Wire</code> associated with this Producer
becomes connected, is modified or becomes disconnected.
<p>
The Wire Admin service must call this method asynchronously. This implies
that implementors of a Producer service can be assured that the callback
will not take place during registration when they execute the
registration in a synchronized method.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>wires</CODE> - An array of the current and complete list of <code>Wire</code>
objects to which this Producer service is connected. May be
<code>null</code> if the Producer is not currently connected to any
<code>Wire</code> objects.</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="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="../../../../org/osgi/service/wireadmin/Envelope.html" title="interface in org.osgi.service.wireadmin"><B>PREV CLASS</B></A>
<A HREF="../../../../org/osgi/service/wireadmin/Wire.html" title="interface in org.osgi.service.wireadmin"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
<A HREF="../../../../index.html?org/osgi/service/wireadmin/Producer.html" target="_top"><B>FRAMES</B></A>
<A HREF="Producer.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>
</BODY>
</HTML>
|