ioexchange.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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<A NAME="getIOExchange()"><!-- --></A><H3>
getIOExchange</H3>
<PRE>
public static <A HREF="../../../../../../org/geotools/data/coverage/grid/stream/IOExchange.html" title="class in org.geotools.data.coverage.grid.stream">IOExchange</A> <B>getIOExchange</B>()</PRE>
<DL>
<DD>Factory method for creating a new IOExchange
<P>
<DD><DL>

<DT><B>Returns:</B><DD>an instance of a IOExchange</DL>
</DD>
</DL>
<HR>

<A NAME="getReader(java.lang.Object)"><!-- --></A><H3>
getReader</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Reader.html" title="class or interface in java.io">Reader</A> <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>Uses the source object to create a Reader object for client
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>source</CODE> - An object that identifies an input Current Implementation
            accepts: Reader, URL, String, File, InputStream
<DT><B>Returns:</B><DD>Returns a Reader that reads from the source identified by the
         source object
<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 Source object cannot be identified or if an unexpected
             problem occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="getGZIPReader(java.lang.Object)"><!-- --></A><H3>
getGZIPReader</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Reader.html" title="class or interface in java.io">Reader</A> <B>getGZIPReader</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>Returns a Reader that wraps a GZIPInputStream. WARNING. If source is a
 reader it assumes that the Reader is of the correct type. There is no way
 to be certain aside from trying to read the data.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>source</CODE> - An object that identifies an input Current Implementation.
            accepts: Reader, URL, String, File, InputStream Note: if
            source is a reader it MUST already wrap a GZIPInputStream.
<DT><B>Returns:</B><DD>Reader that wraps a GZIPInputStream.
<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 the destination cannot be converted to a Writer</DL>
</DD>
</DL>
<HR>

<A NAME="getWriter(java.lang.Object)"><!-- --></A><H3>
getWriter</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Writer.html" title="class or interface in java.io">Writer</A> <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)
                 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>Takes a destination object and converts it to it's appropriate subclass
 of Writer.
 
 <p>
 Takes the destination object and casts it to one of: Writer (Returns
 Writer) OutputStream (Returns OutputStreamWriter) String (Returns
 OutputStreamWriter) URL (Returns OutputStreamWriter) File (Returns
 FileWriter) It then constructs a new Writer out of the destination and
 returns it.
 </p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>destination</CODE> - the destination object to be converted
<DT><B>Returns:</B><DD>a new Writer that can write to the destination
<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 the destination cannot be converted to a Writer</DL>
</DD>
</DL>
<HR>

<A NAME="getPrintWriter(java.lang.Object)"><!-- --></A><H3>
getPrintWriter</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/PrintWriter.html" title="class or interface in java.io">PrintWriter</A> <B>getPrintWriter</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)
                           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>Takes a destination object and creates a PrintWriter from it
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>destination</CODE> - the destination object to be converted
<DT><B>Returns:</B><DD>a new PrintWriter that can write to the destination
<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 the destination cannot be converted to a Writer</DL>
</DD>
</DL>
<HR>

<A NAME="getGZIPPrintWriter(java.lang.Object)"><!-- --></A><H3>
getGZIPPrintWriter</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/PrintWriter.html" title="class or interface in java.io">PrintWriter</A> <B>getGZIPPrintWriter</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)
                               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 PrintWriter that wraps a GZIPOutputStream. WARNING. If source
 is a PrintWriter or a Writer it assumes that stream is of the correct
 type. There is no way to be certain aside from trying to write the data.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>destination</CODE> - An object that identifies an input Current Implementation.
            accepts: Writer, URL, String, File, OutputStream Note: if
            source is a Writer it MUST already wrap a GZIPOutputStream.
<DT><B>Returns:</B><DD>Writer that wraps a GZIPOutputStream.
<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 the destination cannot be converted to a Writer</DL>
</DD>
</DL>
<HR>

<A NAME="determineSourceFormat(java.lang.Object)"><!-- --></A><H3>
determineSourceFormat</H3>
<PRE>
public static int <B>determineSourceFormat</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;arg0)</PRE>
<DL>
<DD>When implemented this method will determine the format of a source object
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>arg0</CODE> - The source object
<DT><B>Returns:</B><DD>an integer indicating a particular format</DL>
</DD>
</DL>
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