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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><!-- Generated by javadoc (build 1.4.2_13) on Tue Jun 05 11:36:21 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>Parameter (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.parameter.Parameter class"><META NAME="keywords" CONTENT="ensureValidValue()"><META NAME="keywords" CONTENT="getUnit()"><META NAME="keywords" CONTENT="doubleValue()"><META NAME="keywords" CONTENT="intValue()"><META NAME="keywords" CONTENT="booleanValue()"><META NAME="keywords" CONTENT="stringValue()"><META NAME="keywords" CONTENT="doubleValueList()"><META NAME="keywords" CONTENT="intValueList()"><META NAME="keywords" CONTENT="valueFile()"><META NAME="keywords" CONTENT="getValue()"><META NAME="keywords" CONTENT="setValue()"><META NAME="keywords" CONTENT="equals()"><META NAME="keywords" CONTENT="hashCode()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Parameter (Geotools 2.3.x 2.3.2 API)";}</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/Parameter.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="../../../org/geotools/parameter/MatrixParameters.html" title="class in org.geotools.parameter"><B>PREV CLASS</B></A> <A HREF="../../../org/geotools/parameter/ParameterGroup.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> <A HREF="Parameter.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">org.geotools.parameter</FONT><BR>Class Parameter</H2><PRE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../org/geotools/referencing/wkt/Formattable.html" title="class in org.geotools.referencing.wkt">Formattable</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../org/geotools/parameter/AbstractParameter.html" title="class in org.geotools.parameter">AbstractParameter</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><B>Parameter</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>Cloneable, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Cloneable.html" title="class or interface in java.lang">Cloneable</A>, GeneralParameterValue, ParameterValue, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../org/geotools/data/wms/gce/WMSParameterValue.html" title="class in org.geotools.data.wms.gce">WMSParameterValue</A></DD></DL><HR><DL><DT>public class <B>Parameter</B><DT>extends <A HREF="../../../org/geotools/parameter/AbstractParameter.html" title="class in org.geotools.parameter">AbstractParameter</A><DT>implements ParameterValue</DL><P>A parameter value used by an operation method. Most CRS parameter values are numeric, but other types of parameter values are possible. The parameter type can be fetch with the <code><A HREF="../../../org/geotools/parameter/Parameter.html#getValue()">getValue()</A>.<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass()</A></code> idiom. The <A HREF="../../../org/geotools/parameter/Parameter.html#getValue()"><CODE>getValue()</CODE></A> and <A HREF="../../../org/geotools/parameter/Parameter.html#setValue(java.lang.Object)"><CODE>setValue(Object)</CODE></A> methods can be invoked at any time. Others getters and setters are parameter-type dependents.<P><P><DL><DT><B>Since:</B></DT> <DD>2.1</DD><DT><B>Author:</B></DT> <DD>Martin Desruisseaux, Jody Garnett (Refractions Research)</DD><DT><B>See Also:</B><DD><A HREF="../../../org/geotools/parameter/DefaultParameterDescriptor.html" title="class in org.geotools.parameter"><CODE>DefaultParameterDescriptor</CODE></A>, <A HREF="../../../org/geotools/parameter/ParameterGroup.html" title="class in org.geotools.parameter"><CODE>ParameterGroup</CODE></A>, <A HREF="../../../serialized-form.html#org.geotools.parameter.Parameter">Serialized Form</A><DT><B>Module:</B></DT><DD><CODE><B>module/referencing</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-referencing/"><CODE>gt2-referencing.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/referencing/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/referencing/src/org/geotools/parameter/Parameter.java">SVN head</A>)</DD></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="../../../org/geotools/parameter/Parameter.html#Parameter(org.opengis.parameter.ParameterDescriptor)">Parameter</A></B>(ParameterDescriptor descriptor)</CODE><BR> Constructs a parameter value from the specified descriptor. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#Parameter(org.opengis.parameter.ParameterDescriptor, java.lang.Object)">Parameter</A></B>(ParameterDescriptor descriptor, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> value)</CODE><BR> Constructs a parameter value from the specified descriptor and value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#Parameter(java.lang.String, org.opengis.util.CodeList)">Parameter</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> name, CodeList value)</CODE><BR> Constructs a parameter from the specified enumeration. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#Parameter(java.lang.String, double, javax.units.Unit)">Parameter</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> name, double value, <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A> unit)</CODE><BR> Constructs a parameter from the specified name and value. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#Parameter(java.lang.String, int)">Parameter</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> name, int value)</CODE><BR> Constructs a parameter from the specified name and value. </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> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#booleanValue()">booleanValue</A></B>()</CODE><BR> Returns the boolean value of an operation parameter. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#doubleValue()">doubleValue</A></B>()</CODE><BR> Returns the numeric value of the coordinate operation parameter with its associated <A HREF="../../../org/geotools/parameter/Parameter.html#getUnit()">unit of measure</A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#doubleValue(javax.units.Unit)">doubleValue</A></B>(<A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A> unit)</CODE><BR> Returns the numeric value of the coordinate operation parameter in the specified unit of measure. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#doubleValueList()">doubleValueList</A></B>()</CODE><BR> Returns an ordered sequence of two or more numeric values of an operation parameter list, where each value has the same associated <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">unit of measure</A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#doubleValueList(javax.units.Unit)">doubleValueList</A></B>(<A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A> unit)</CODE><BR> Returns an ordered sequence of numeric values in the specified unit of measure. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/parameter/Parameter.html#ensureValidValue(org.opengis.parameter.ParameterDescriptor, java.lang.Object)">ensureValidValue</A></B>(ParameterDescriptor descriptor, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> value)</CODE><BR> Ensures that the given value is valid according the specified parameter descriptor. </TD>⌨️ 快捷键说明
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