miffile.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

   FeatureWriter fw = mf.getFeatureWriter();
 
   while(...) {
 	    Feature f = fw.next();
 			f.setAttribute(...,...);
 			fw.write();
 	 }
 
   fw.close();
 </code></pre>
<P>
<DT><B>Parameters:</B><DD><CODE>path</CODE> - Full path & file name of the MIF file to create, can be
        specified without the .mif extension<DD><CODE>featureType</CODE> - <DD><CODE>params</CODE> - Parameter map
<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> - Couldn't open the specified mif file for writing
         header
<DD><CODE><A HREF="../../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></CODE> - Error setting the given FeatureType as the MIF
         schema</DL>

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<B>Method Detail</B></FONT></TD>
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<A NAME="getHeaderClause(java.lang.String)"><!-- --></A><H3>
getHeaderClause</H3>
<PRE>
public <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>getHeaderClause</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>&nbsp;clause)</PRE>
<DL>
<DD>Gets the value for an header clause
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clause</CODE> - </DL>
</DD>
</DL>
<HR>

<A NAME="getFeatureReader()"><!-- --></A><H3>
getFeatureReader</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A> <B>getFeatureReader</B>()
                               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><p>
 Opens the MIF file for input and returns a FeatureReader for accessing
 the features.
 </p>
 
 <p>
 TODO Concurrent file access is still not handled. MUST LOCK FILE and
 return an error if another FeatureReader is open - Handle concurrent
 access with synchronized(mif) / or Filesystem locking is enough?
 </p>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>A FeatureReader for reading features from MIF/MID file
<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></DL>
</DD>
</DL>
<HR>

<A NAME="getFeatureWriter()"><!-- --></A><H3>
getFeatureWriter</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A> <B>getFeatureWriter</B>()
                               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>Returns a FeatureWriter for writing features to the MIF/MID file.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>A featureWriter for this file
<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></DL>
</DD>
</DL>
<HR>

<A NAME="getMifName(java.lang.String)"><!-- --></A><H3>
getMifName</H3>
<PRE>
protected static <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>getMifName</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>&nbsp;fName)
                            throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/FileNotFoundException.html" title="class or interface in java.io">FileNotFoundException</A></PRE>
<DL>
<DD>Returns the name of a .mif file without extension
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fName</CODE> - The file name, possibly with .mif extension
<DT><B>Returns:</B><DD>The name with no extension
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/FileNotFoundException.html" title="class or interface in java.io">FileNotFoundException</A></CODE> - if extension was other than "mif"</DL>
</DD>
</DL>
<HR>

<A NAME="getFileHandler(java.io.File, java.lang.String, java.lang.String, boolean)"><!-- --></A><H3>
getFileHandler</H3>
<PRE>
protected static <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A> <B>getFileHandler</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;path,
                                     <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;fileName,
                                     <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;ext,
                                     boolean&nbsp;mustExist)
                              throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/FileNotFoundException.html" title="class or interface in java.io">FileNotFoundException</A></PRE>
<DL>
<DD>Utility function for initFiles - returns a File given a parent path, the
 file name without extension and the extension Tests different extension
 case for case-sensitive filesystems
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>path</CODE> - Directory containing the file<DD><CODE>fileName</CODE> - Name of the file with no extension<DD><CODE>ext</CODE> - extension with trailing "."<DD><CODE>mustExist</CODE> - If true, raises an excaption if the file does not exist
<DT><B>Returns:</B><DD>The File object
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/FileNotFoundException.html" title="class or interface in java.io">FileNotFoundException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getSchema()"><!-- --></A><H3>
getSchema</H3>
<PRE>
public <A HREF="../../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>getSchema</B>()</PRE>
<DL>
<DD>Returns the MIF schema
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current FeatureType associated with the MIF file</DL>
</DD>
</DL>
<HR>

<A NAME="copyFileAndDelete(java.io.File, java.io.File, boolean)"><!-- --></A><H3>
copyFileAndDelete</H3>
<PRE>
protected static void <B>copyFileAndDelete</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;in,
                                        <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;out,
                                        boolean&nbsp;deleteIn)
                                 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>Utility function for copying or moving files
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - Source file<DD><CODE>out</CODE> - Destination file<DD><CODE>deleteIn</CODE> - If true, source will be deleted upon successfull copy
<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></DL>
</DD>
</DL>
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