abstractparameter.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

<P>

<!-- ============ FIELD DETAIL =========== -->


<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="AbstractParameter(org.opengis.parameter.GeneralParameterDescriptor)"><!-- --></A><H3>
AbstractParameter</H3>
<PRE>
protected <B>AbstractParameter</B>(GeneralParameterDescriptor&nbsp;descriptor)</PRE>
<DL>
<DD>Constructs a parameter value from the specified descriptor.
<P>
<DT><B>Parameters:</B><DD><CODE>descriptor</CODE> - The abstract definition of this parameter or group of parameters.</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="getDescriptor()"><!-- --></A><H3>
getDescriptor</H3>
<PRE>
public GeneralParameterDescriptor <B>getDescriptor</B>()</PRE>
<DL>
<DD>Returns the abstract definition of this parameter or group of parameters.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getDescriptor</CODE> in interface <CODE>GeneralParameterValue</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <B>clone</B>()</PRE>
<DL>
<DD>Returns a copy of this parameter value or group.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>clone</CODE> in interface <CODE>GeneralParameterValue</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;object)</PRE>
<DL>
<DD>Compares the specified object with this parameter for equality.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - The object to compare to .
<DT><B>Returns:</B><DD> if both objects are equal.</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns a hash value for this parameter. This value doesn't need
 to be the same in past or future versions of this class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Returns a string representation of this parameter. The default implementation
 delegates the work to <A HREF="../../../org/geotools/parameter/AbstractParameter.html#write(org.geotools.io.TableWriter)"><CODE>write(org.geotools.io.TableWriter)</CODE></A>, which should be overriden by subclasses.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/referencing/wkt/Formattable.html#toString()">toString</A></CODE> in class <CODE><A HREF="../../../org/geotools/referencing/wkt/Formattable.html" title="class in org.geotools.referencing.wkt">Formattable</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="write(org.geotools.io.TableWriter)"><!-- --></A><H3>
write</H3>
<PRE>
protected void <B>write</B>(<A HREF="../../../org/geotools/io/TableWriter.html" title="class in org.geotools.io">TableWriter</A>&nbsp;table)
              throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Write the content of this parameter to the specified table. This method make it easier
 to align values properly than overriding the <A HREF="../../../org/geotools/parameter/AbstractParameter.html#toString()"><CODE>toString()</CODE></A> method. The table's columns
 are defined as below:
 <ol>
   <li>The parameter name</li>
   <li>The separator</li>
   <li>The parameter value</li>
 </ol>

 <P>The default implementation is suitable for most cases. However, subclasses are free to
 override this method with the following idiom:</P>

 <blockquote><pre>
 table.<A HREF="../../../org/geotools/io/TableWriter.html#write(java.lang.String)">write</A>("<var>parameter name</var>");
 table.<A HREF="../../../org/geotools/io/TableWriter.html#nextColumn()">nextColumn</A>()
 table.<A HREF="../../../org/geotools/io/TableWriter.html#write(java.lang.String)">write</A>('=');
 table.<A HREF="../../../org/geotools/io/TableWriter.html#nextColumn()">nextColumn</A>()
 table.<A HREF="../../../org/geotools/io/TableWriter.html#write(java.lang.String)">write</A>("<var>parameter value</var>");
 table.<A HREF="../../../org/geotools/io/TableWriter.html#nextLine()">nextLine</A>()
 </pre></blockquote>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>table</CODE> - The table where to format the parameter value.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - if an error occurs during output operation.</DL>
</DD>
</DL>
<HR>

<A NAME="formatWKT(org.geotools.referencing.wkt.Formatter)"><!-- --></A><H3>
formatWKT</H3>
<PRE>
protected final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>formatWKT</B>(<A HREF="../../../org/geotools/referencing/wkt/Formatter.html" title="class in org.geotools.referencing.wkt">Formatter</A>&nbsp;formatter)</PRE>
<DL>
<DD>Format the inner part of this parameter as
 <A HREF="http://geoapi.sourceforge.net/snapshot/javadoc/org/opengis/referencing/doc-files/WKT.html"><cite>Well
 Known Text</cite> (WKT)</A>. This method doesn't need to be overriden, since the formatter
 already know how to <A HREF="../../../org/geotools/referencing/wkt/Formatter.html#append(org.opengis.parameter.GeneralParameterValue)">format parameters</A>.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/referencing/wkt/Formattable.html#formatWKT(org.geotools.referencing.wkt.Formatter)">formatWKT</A></CODE> in class <CODE><A HREF="../../../org/geotools/referencing/wkt/Formattable.html" title="class in org.geotools.referencing.wkt">Formattable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>formatter</CODE> - The formatter to use.
<DT><B>Returns:</B><DD>The WKT element name (e.g. "GEOGCS").<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/referencing/wkt/Formattable.html#toWKT()"><CODE>Formattable.toWKT()</CODE></A>, 
<A HREF="../../../org/geotools/referencing/wkt/Formattable.html#toString()"><CODE>Formattable.toString()</CODE></A></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=3 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>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/AbstractParameter.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;PREV CLASS&nbsp;
&nbsp;<A HREF="../../../org/geotools/parameter/AbstractParameterDescriptor.html" title="class in org.geotools.parameter"><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>  &nbsp;
&nbsp;<A HREF="AbstractParameter.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
&nbsp;<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:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL:&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->

<HR>
Copyright &copy; 1996-2007 <a href="http://www.geotools.org">Geotools</a>. All Rights Reserved.
</BODY>
</HTML>