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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:43:12 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class NVList</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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/NVList.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-files/index-1.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><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../org/omg/CORBA/NameValuePairHelper.html"><B>PREV CLASS</B></A> <A HREF="../../../org/omg/CORBA/ObjectHelper.html"><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="NVList.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | 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><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.omg.CORBA</FONT><BR>Class NVList</H2><PRE><A HREF="../../../java/lang/Object.html">java.lang.Object</A> | +--<B>org.omg.CORBA.NVList</B></PRE><HR><DL><DT>public abstract class <B>NVList</B><DT>extends <A HREF="../../../java/lang/Object.html">Object</A></DL><P>A modifiable list containing <code>NamedValue</code> objects. <P> The class <code>NVList</code> is used as follows: <UL> <LI>to describe arguments for a <code>Request</code> object in the Dynamic Invocation Interface and the Dynamic Skeleton Interface <LI>to describe context values in a <code>Context</code> object </UL> <P> Each <code>NamedValue</code> object consists of the following: <UL> <LI>a name, which is a <code>String</code> object <LI>a value, as an <code>Any</code> object <LI>an argument mode flag </UL> <P> An <code>NVList</code> object may be created using one of the following <code>ORB</code> methods: <OL> <LI><code>org.omg.CORBA.ORB.create_list</code> <PRE> org.omg.CORBA.NVList nv = orb.create_list(3); </PRE> The variable <code>nv</code> represents a newly-created <code>NVList</code> object. The argument is a memory-management hint to the orb and does not imply the actual length of the list. If, for example, you want to use an <code>NVList</code> object in a request, and the method being invoked takes three parameters, you might optimize by supplying 3 to the method <code>create_list</code>. Note that the new <code>NVList</code> will not necessarily have a length of 3; it could have a length of 2 or 4, for instance. Note also that you can add any number of <code>NamedValue</code> objects to this list regardless of its original length. <P> <LI><code>org.omg.CORBA.ORB.create_operation_list</code> <PRE> org.omg.CORBA.NVList nv = orb.create_operation_list(myOperationDef); </PRE> The variable <code>nv</code> represents a newly-created <code>NVList</code> object that contains descriptions of the arguments to the method described in the given <code>OperationDef</code> object. </OL> <P> The methods in the class <code>NVList</code> all deal with the <code>NamedValue</code> objects in the list. There are three methods for adding a <code>NamedValue</code> object, a method for getting the count of <code>NamedValue</code> objects in the list, a method for retrieving a <code>NamedValue</code> object at a given index, and a method for removing a <code>NamedValue</code> object at a given index.<P><DL><DT><B>Since: </B><DD>JDK1.2</DD><DT><B>See Also: </B><DD><A HREF="../../../org/omg/CORBA/Request.html"><CODE>Request</CODE></A>, <A HREF="../../../org/omg/CORBA/ServerRequest.html"><CODE>ServerRequest</CODE></A>, <A HREF="../../../org/omg/CORBA/NamedValue.html"><CODE>NamedValue</CODE></A>, <A HREF="../../../org/omg/CORBA/Context.html"><CODE>Context</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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="../../../org/omg/CORBA/NVList.html#NVList()">NVList</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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>abstract <A HREF="../../../org/omg/CORBA/NamedValue.html">NamedValue</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/omg/CORBA/NVList.html#add_item(java.lang.String, int)">add_item</A></B>(<A HREF="../../../java/lang/String.html">String</A> item_name, int flags)</CODE><BR> Creates a new <code>NamedValue</code> object initialized with the given name and flag, and adds it to the end of this <code>NVList</code> object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract <A HREF="../../../org/omg/CORBA/NamedValue.html">NamedValue</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/omg/CORBA/NVList.html#add_value(java.lang.String, org.omg.CORBA.Any, int)">add_value</A></B>(<A HREF="../../../java/lang/String.html">String</A> item_name, <A HREF="../../../org/omg/CORBA/Any.html">Any</A> val, int flags)</CODE><BR> Creates a new <code>NamedValue</code> object initialized with the given name, value, and flag, and adds it to the end of this <code>NVList</code> object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract <A HREF="../../../org/omg/CORBA/NamedValue.html">NamedValue</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/omg/CORBA/NVList.html#add(int)">add</A></B>(int flags)</CODE><BR> Creates a new <code>NamedValue</code> object initialized with the given flag and adds it to the end of this <code>NVList</code> object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/omg/CORBA/NVList.html#count()">count</A></B>()</CODE><BR> Returns the number of <code>NamedValue</code> objects that have been added to this <code>NVList</code> object.</TD>⌨️ 快捷键说明
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