abstractparameterdescriptor.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

 created parameter value(s) will be  object.
 <p>
 Example implementation:
 <pre>
 <b>return</b> new <A HREF="../../../org/geotools/parameter/Parameter.html" title="class in org.geotools.parameter">Parameter</A>(this);
 </pre>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>createValue</CODE> in interface <CODE>GeneralParameterDescriptor</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getMinimumOccurs()"><!-- --></A><H3>
getMinimumOccurs</H3>
<PRE>
public int <B>getMinimumOccurs</B>()</PRE>
<DL>
<DD>The minimum number of times that values for this parameter group or
 parameter are required. The default value is one. A value of 0 means
 an optional parameter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getMinimumOccurs</CODE> in interface <CODE>GeneralParameterDescriptor</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/parameter/AbstractParameterDescriptor.html#getMaximumOccurs()"><CODE>getMaximumOccurs()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getMaximumOccurs()"><!-- --></A><H3>
getMaximumOccurs</H3>
<PRE>
public abstract int <B>getMaximumOccurs</B>()</PRE>
<DL>
<DD>The maximum number of times that values for this parameter group or parameter
 can be included. For a <A HREF="../../../org/geotools/parameter/DefaultParameterDescriptor.html" title="class in org.geotools.parameter">single parameter</A>,
 the value is always 1. For a <A HREF="../../../org/geotools/parameter/DefaultParameterDescriptorGroup.html" title="class in org.geotools.parameter">parameter group</A>,
 it may vary.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getMaximumOccurs</CODE> in interface <CODE>GeneralParameterDescriptor</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/parameter/AbstractParameterDescriptor.html#getMinimumOccurs()"><CODE>getMinimumOccurs()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="equals(org.geotools.referencing.AbstractIdentifiedObject, boolean)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="../../../org/geotools/referencing/AbstractIdentifiedObject.html" title="class in org.geotools.referencing">AbstractIdentifiedObject</A>&nbsp;object,
                      boolean&nbsp;compareMetadata)</PRE>
<DL>
<DD>Compares the specified object with this parameter for equality.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/referencing/AbstractIdentifiedObject.html#equals(org.geotools.referencing.AbstractIdentifiedObject, boolean)">equals</A></CODE> in class <CODE><A HREF="../../../org/geotools/referencing/AbstractIdentifiedObject.html" title="class in org.geotools.referencing">AbstractIdentifiedObject</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - The object to compare to .<DD><CODE>compareMetadata</CODE> -  for performing a strict comparaison, or
          for comparing only properties relevant to transformations.
<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.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/referencing/AbstractIdentifiedObject.html#hashCode()">hashCode</A></CODE> in class <CODE><A HREF="../../../org/geotools/referencing/AbstractIdentifiedObject.html" title="class in org.geotools.referencing">AbstractIdentifiedObject</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The hash code value. This value doesn't need to be the same
         in past or future versions of this class.</DL>
</DD>
</DL>
<HR>

<A NAME="formatWKT(org.geotools.referencing.wkt.Formatter)"><!-- --></A><H3>
formatWKT</H3>
<PRE>
protected <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 a
 <A HREF="http://geoapi.sourceforge.net/snapshot/javadoc/org/opengis/referencing/doc-files/WKT.html"><cite>Well
 Known Text</cite> (WKT)</A> element. Note that WKT is not yet defined for parameter descriptor.
 Current implementation print only the name.
<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, which is "PARAMETER"<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>
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