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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><TITLE>DiscoveryQuery (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.impl.protocol.DiscoveryQuery class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="DiscoveryQuery (Project JXTA J2SE)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= 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=3 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/DiscoveryQuery.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><a href='http://www.jxta.org' target='_blank'>Project JXTA</a></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../net/jxta/impl/protocol/AccessPointAdv.Instantiator.html" title="class in net.jxta.impl.protocol"><B>PREV CLASS</B></A> <A HREF="../../../../net/jxta/impl/protocol/DiscoveryResponse.html" title="class in net.jxta.impl.protocol"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="DiscoveryQuery.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 | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <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">net.jxta.impl.protocol</FONT><BR>Class DiscoveryQuery</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../net/jxta/protocol/DiscoveryQueryMsg.html" title="class in net.jxta.protocol">net.jxta.protocol.DiscoveryQueryMsg</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>net.jxta.impl.protocol.DiscoveryQuery</B></PRE><HR><DL><DT>public class <B>DiscoveryQuery</B><DT>extends <A HREF="../../../../net/jxta/protocol/DiscoveryQueryMsg.html" title="class in net.jxta.protocol">DiscoveryQueryMsg</A></DL><P>Implements the Discovery Query Message according to the schema defined by the standard JXTA Peer Discovery Protocol (PDP). <p/><pre> <xs:element name="DiscoveryQuery" type="jxta:DiscoveryQuery"/> <xsd:simpleType name="DiscoveryQueryType"> <xsd:restriction base="xsd:string"> <!-- peer --> <xsd:enumeration value="0"/> <!-- group --> <xsd:enumeration value="1"/> <!-- adv --> <xsd:enumeration value="2"/> </xsd:restriction> </xsd:simpleType> <xs:complexType name="DiscoveryQuery"> <xs:sequence> <xs:element name="Type" type="jxta:DiscoveryQueryType"/> <xs:element name="Threshold" type="xs:unsignedInt" minOccurs="0"/> <xs:element name="Attr" type="xs:string" minOccurs="0"/> <xs:element name="Value" type="xs:string" minOccurs="0"/> <!-- The following should refer to a peer adv, but is instead a whole doc for historical reasons --> <xs:element name="PeerAdv" type="xs:string" minOccurs="0"/> </xs:sequence> </xs:complexType> </pre><P><P><DL><DT><B>See Also:</B><DD><A HREF="../../../../net/jxta/discovery/DiscoveryService.html" title="interface in net.jxta.discovery"><CODE>DiscoveryService</CODE></A>, <A HREF="../../../../net/jxta/impl/discovery/DiscoveryServiceImpl.html" title="class in net.jxta.impl.discovery"><CODE>DiscoveryServiceImpl</CODE></A>, <a href="http://spec.jxta.org/nonav/v1.0/docbook/JXTAProtocols.html#proto-pdp" target="_blank">JXTA Protocols Specification : Peer Discovery Protocol</a></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../net/jxta/impl/protocol/DiscoveryQuery.html#DiscoveryQuery()">DiscoveryQuery</A></B>()</CODE><BR> Default constructor</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../net/jxta/impl/protocol/DiscoveryQuery.html#DiscoveryQuery(java.io.InputStream)">DiscoveryQuery</A></B>(java.io.InputStream stream)</CODE><BR> Construct a doc from InputStream</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../net/jxta/impl/protocol/DiscoveryQuery.html#DiscoveryQuery(net.jxta.document.TextElement)">DiscoveryQuery</A></B>(<A HREF="../../../../net/jxta/document/TextElement.html" title="interface in net.jxta.document">TextElement</A> doc)</CODE><BR> Construct from a StructuredDocument</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../net/jxta/document/Document.html" title="interface in net.jxta.document">Document</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/protocol/DiscoveryQuery.html#getDocument(net.jxta.document.MimeMediaType)">getDocument</A></B>(<A HREF="../../../../net/jxta/document/MimeMediaType.html" title="class in net.jxta.document">MimeMediaType</A> asMimeType)</CODE><BR> Write advertisement into a document. asMimeType is a mime media-type specification and provides the form of the document which is being requested. Two standard document forms are defined. "text/text" encodes the document in a form nice for printing out, and "text/xml" which provides an XML representation.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/protocol/DiscoveryQuery.html#handleElement(net.jxta.document.TextElement)">handleElement</A></B>(<A HREF="../../../../net/jxta/document/TextElement.html" title="interface in net.jxta.document">TextElement</A> elem)</CODE><BR> Process an individual element from the document.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../net/jxta/impl/protocol/DiscoveryQuery.html#initialize(net.jxta.document.Element)">initialize</A></B>(<A HREF="../../../../net/jxta/document/Element.html" title="interface in net.jxta.document">Element</A> root)</CODE><BR> Intialize a Discovery Query from a portion of a structured document.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD>⌨️ 快捷键说明
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