filesystemgridcoverageexchange.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

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<B>Constructor Detail</B></FONT></TD>
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<A NAME="FileSystemGridCoverageExchange()"><!-- --></A><H3>
FileSystemGridCoverageExchange</H3>
<PRE>
public <B>FileSystemGridCoverageExchange</B>()</PRE>
<DL>
<DD>Creates a new FileSystemGridCoverageExchange object.
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<A NAME="FileSystemGridCoverageExchange(java.io.File)"><!-- --></A><H3>
FileSystemGridCoverageExchange</H3>
<PRE>
public <B>FileSystemGridCoverageExchange</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;root)</PRE>
<DL>
<DD>Creates a FileSystemGridCoverageExchange that
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<!-- ============ METHOD DETAIL ========== -->

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<B>Method Detail</B></FONT></TD>
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<A NAME="refresh()"><!-- --></A><H3>
refresh</H3>
<PRE>
public void <B>refresh</B>()</PRE>
<DL>
<DD>Examines the associated directories again to see if any changes have been made

 Not very efficient at the moment.  Should be updated in the future.
 Each time it is called all the current are discarded and new ones are built
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<DD><DL>
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</DD>
<DD><DL>
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</DD>
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<A NAME="add(java.io.File)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</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;f)</PRE>
<DL>
<DD>Add one file to the Catalog/Exchange
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<DD><DL>
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</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>f</CODE> - The File to be added to the catalog</DL>
</DD>
</DL>
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<A NAME="getFormats()"><!-- --></A><H3>
getFormats</H3>
<PRE>
public Format[] <B>getFormats</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getFormats</CODE> in interface <CODE>GridCoverageExchange</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>org.geotools.gc.exchange.GridCoverageExchange#getFormats()</CODE></DL>
</DD>
</DL>
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<A NAME="getReader(java.lang.Object)"><!-- --></A><H3>
getReader</H3>
<PRE>
public GridCoverageReader <B>getReader</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;source)
                                                       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><DL>
<DT><B>Specified by:</B><DD><CODE>getReader</CODE> in interface <CODE>GridCoverageExchange</CODE></DL>
</DD>
<DD><DL>

<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><DT><B>See Also:</B><DD><CODE>org.geotools.gc.exchange.GridCoverageExchange#getReader(java.lang.Object)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getWriter(java.lang.Object, org.opengis.coverage.grid.Format)"><!-- --></A><H3>
getWriter</H3>
<PRE>
public GridCoverageWriter <B>getWriter</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;destination,
                                    Format&nbsp;format)
                                                       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><DL>
<DT><B>Specified by:</B><DD><CODE>getWriter</CODE> in interface <CODE>GridCoverageExchange</CODE></DL>
</DD>
<DD><DL>

<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><DT><B>See Also:</B><DD><CODE>org.geotools.gc.exchange.GridCoverageExchange#getWriter(java.lang.Object,
      org.opengis.coverage.grid.Format)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="dispose()"><!-- --></A><H3>
dispose</H3>
<PRE>
public void <B>dispose</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><DL>
<DT><B>Specified by:</B><DD><CODE>dispose</CODE> in interface <CODE>GridCoverageExchange</CODE></DL>
</DD>
<DD><DL>

<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><DT><B>See Also:</B><DD><CODE>org.geotools.gc.exchange.GridCoverageExchange#dispose()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="isAvailable()"><!-- --></A><H3>
isAvailable</H3>
<PRE>
public boolean <B>isAvailable</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>org.geotools.data.coverage.grid.GridCoverageExchange#isAvailable()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="setDataSource(java.lang.Object)"><!-- --></A><H3>
setDataSource</H3>
<PRE>
public boolean <B>setDataSource</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;datasource)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>org.geotools.data.coverage.grid.GridCoverageExchange#accepts(java.net.URL)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="isRecursive()"><!-- --></A><H3>
isRecursive</H3>
<PRE>
public boolean <B>isRecursive</B>()</PRE>
<DL>
<DD>Return true if the root and all subdirectories are searched for files
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>true if the root and all subdirectories are searched for files
 		false otherwise</DL>
</DD>
</DL>
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<A NAME="setRecursive(boolean)"><!-- --></A><H3>
setRecursive</H3>
<PRE>
public void <B>setRecursive</B>(boolean&nbsp;recursive)</PRE>
<DL>
<DD>Sets whether the entire branch starting at root is part of the catalog or just
 a single directory
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>recursive</CODE> - True means that root and all subdirectories are searched files
                 false means just the root is searched</DL>
</DD>
</DL>
<HR>

<A NAME="getFiles()"><!-- --></A><H3>
getFiles</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A> <B>getFiles</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
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