textfilereaderwriter.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

 an text file.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_AbstractReaderWriter"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class <A HREF="../../../../../org/geotools/graph/io/standard/AbstractReaderWriter.html" title="class in org.geotools.graph.io.standard">AbstractReaderWriter</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/geotools/graph/io/standard/AbstractReaderWriter.html#getProperty(java.lang.String)">getProperty</A>, <A HREF="../../../../../org/geotools/graph/io/standard/AbstractReaderWriter.html#setProperty(java.lang.String)">setProperty</A>, <A HREF="../../../../../org/geotools/graph/io/standard/AbstractReaderWriter.html#setProperty(java.lang.String, java.lang.Object)">setProperty</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_Object"><!-- --></A>
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<TD><B>Methods inherited from class <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</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>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_GraphReaderWriter"><!-- --></A>
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from interface <A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html" title="interface in org.geotools.graph.io">GraphReaderWriter</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html#getProperty(java.lang.String)">getProperty</A>, <A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html#setProperty(java.lang.String, java.lang.Object)">setProperty</A></CODE></TD>
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<!-- ============ FIELD DETAIL =========== -->

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<A NAME="DELIMITER"><!-- --></A><H3>
DELIMITER</H3>
<PRE>
public static final <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>DELIMITER</B></PRE>
<DL>
<DD>line delimiter key
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.graph.io.standard.TextfileReaderWriter.DELIMITER">Constant Field Values</A></DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<B>Constructor Detail</B></FONT></TD>
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<A NAME="TextfileReaderWriter()"><!-- --></A><H3>
TextfileReaderWriter</H3>
<PRE>
public <B>TextfileReaderWriter</B>()</PRE>
<DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

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<A NAME="read()"><!-- --></A><H3>
read</H3>
<PRE>
public <A HREF="../../../../../org/geotools/graph/structure/Graph.html" title="interface in org.geotools.graph.structure">Graph</A> <B>read</B>()
           throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Performs a read of the text file line by line. As each line is read the
 corresponding graph components represented by the line of text are
 created by an underlying GraphGenerator.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html#read()">read</A></CODE> in interface <CODE><A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html" title="interface in org.geotools.graph.io">GraphReaderWriter</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The represented graph.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE><DT><B>See Also:</B><DD><CODE>GraphGenerator#read()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="write(org.geotools.graph.structure.Graph)"><!-- --></A><H3>
write</H3>
<PRE>
public void <B>write</B>(<A HREF="../../../../../org/geotools/graph/structure/Graph.html" title="interface in org.geotools.graph.structure">Graph</A>&nbsp;g)
           throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Performs a write on the graph out to a text file. If the NODES property
 is set, the nodes of the graph will be written, and if the EDGES property
 is set, the edges of the graph will be written.
 
 * @see GraphGenerator#write()
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html#write(org.geotools.graph.structure.Graph)">write</A></CODE> in interface <CODE><A HREF="../../../../../org/geotools/graph/io/GraphReaderWriter.html" title="interface in org.geotools.graph.io">GraphReaderWriter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g</CODE> - The graph to be
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="writeNode(java.io.Writer, org.geotools.graph.structure.Node)"><!-- --></A><H3>
writeNode</H3>
<PRE>
protected void <B>writeNode</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Writer.html" title="class or interface in java.io">Writer</A>&nbsp;out,
                         <A HREF="../../../../../org/geotools/graph/structure/Node.html" title="interface in org.geotools.graph.structure">Node</A>&nbsp;n)</PRE>
<DL>
<DD>Template method for writing the text representation of a node to 
 an text file.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - The text file writer.<DD><CODE>n</CODE> - The node to write.</DL>
</DD>
</DL>
<HR>

<A NAME="writeEdge(java.io.Writer, org.geotools.graph.structure.Edge)"><!-- --></A><H3>
writeEdge</H3>
<PRE>
protected void <B>writeEdge</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Writer.html" title="class or interface in java.io">Writer</A>&nbsp;out,
                         <A HREF="../../../../../org/geotools/graph/structure/Edge.html" title="interface in org.geotools.graph.structure">Edge</A>&nbsp;e)</PRE>
<DL>
<DD>Template method for writing the text representation of an edge to 
 an text file.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - The text file writer.<DD><CODE>e</CODE> - The edge to write.</DL>
</DD>
</DL>
<HR>

<A NAME="readInternal(java.util.StringTokenizer)"><!-- --></A><H3>
readInternal</H3>
<PRE>
protected abstract <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <B>readInternal</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/StringTokenizer.html" title="class or interface in java.util">StringTokenizer</A>&nbsp;st)</PRE>
<DL>
<DD>Template method for returning the object represented by a line in the
 text file being read.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>st</CODE> - The tokenized line read from text file.
<DT><B>Returns:</B><DD>The object represented by the line of text.</DL>
</DD>
</DL>
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