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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.4.2_13) on Tue Jun 05 11:36:36 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>ShapefileReader (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.data.shapefile.shp.ShapefileReader class"><META NAME="keywords" CONTENT="readHeader()"><META NAME="keywords" CONTENT="ensureCapacity()"><META NAME="keywords" CONTENT="fill()"><META NAME="keywords" CONTENT="getHeader()"><META NAME="keywords" CONTENT="close()"><META NAME="keywords" CONTENT="supportsRandomAccess()"><META NAME="keywords" CONTENT="hasNext()"><META NAME="keywords" CONTENT="transferTo()"><META NAME="keywords" CONTENT="nextRecord()"><META NAME="keywords" CONTENT="goTo()"><META NAME="keywords" CONTENT="shapeAt()"><META NAME="keywords" CONTENT="recordAt()"><META NAME="keywords" CONTENT="getCount()"><META NAME="keywords" CONTENT="main()"><META NAME="keywords" CONTENT="setHandler()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ShapefileReader (Geotools 2.3.x 2.3.2 API)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/ShapefileReader.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileHeader.html" title="class in org.geotools.data.shapefile.shp"><B>PREV CLASS</B></A> <A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.Record.html" title="class in org.geotools.data.shapefile.shp"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="ShapefileReader.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: <A HREF="#nested_class_summary">NESTED</A> | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.geotools.data.shapefile.shp</FONT><BR>Class ShapefileReader</H2><PRE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by"><B>ShapefileReader</B></PRE><HR><DL><DT>public class <B>ShapefileReader</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL><P>The general use of this class is: <CODE><PRE> FileChannel in = new FileInputStream("thefile.dbf").getChannel(); ShapefileReader r = new ShapefileReader( in ) while (r.hasNext()) { Geometry shape = (Geometry) r.nextRecord().shape() // do stuff } r.close(); </PRE></CODE> You don't have to immediately ask for the shape from the record. The record will contain the bounds of the shape and will only read the shape when the shape() method is called. This ShapefileReader.Record is the same object every time, so if you need data from the Record, be sure to copy it.<P><P><DL><DT><B>Author:</B></DT> <DD>jamesm, aaime, Ian Schneider</DD><DT><B>Module:</B></DT><DD><CODE><B>plugin/shapefile</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-shapefile/"><CODE>gt2-shapefile.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/shapefile/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/plugin/shapefile/src/org/geotools/data/shapefile/shp/ShapefileReader.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><A NAME="nested_class_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Nested Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.Record.html" title="class in org.geotools.data.shapefile.shp">ShapefileReader.Record</A></B></CODE><BR> The reader returns only one Record instance in its lifetime. </TD></TR></TABLE> <!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#ShapefileReader(java.nio.channels.ReadableByteChannel, boolean, boolean, org.geotools.data.shapefile.Lock)">ShapefileReader</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/nio/channels/ReadableByteChannel.html" title="class or interface in java.nio.channels">ReadableByteChannel</A> channel, boolean strict, boolean useMemoryMapped, <A HREF="../../../../../org/geotools/data/shapefile/Lock.html" title="class in org.geotools.data.shapefile">Lock</A> lock)</CODE><BR> Creates a new instance of ShapeFile.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#ShapefileReader(java.nio.channels.ReadableByteChannel, org.geotools.data.shapefile.Lock)">ShapefileReader</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/nio/channels/ReadableByteChannel.html" title="class or interface in java.nio.channels">ReadableByteChannel</A> channel, <A HREF="../../../../../org/geotools/data/shapefile/Lock.html" title="class in org.geotools.data.shapefile">Lock</A> lock)</CODE><BR> Default constructor. </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#close()">close</A></B>()</CODE><BR> Clean up any resources. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/nio/ByteBuffer.html" title="class or interface in java.nio">ByteBuffer</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#ensureCapacity(java.nio.ByteBuffer, int, boolean)">ensureCapacity</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/nio/ByteBuffer.html" title="class or interface in java.nio">ByteBuffer</A> buffer, int size, boolean useMemoryMappedBuffer)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#fill(java.nio.ByteBuffer, java.nio.channels.ReadableByteChannel)">fill</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/nio/ByteBuffer.html" title="class or interface in java.nio">ByteBuffer</A> buffer, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/nio/channels/ReadableByteChannel.html" title="class or interface in java.nio.channels">ReadableByteChannel</A> channel)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#getCount(int)">getCount</A></B>(int count)</CODE><BR> Parses the shpfile counting the records.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileHeader.html" title="class in org.geotools.data.shapefile.shp">ShapefileHeader</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/data/shapefile/shp/ShapefileReader.html#getHeader()">getHeader</A></B>()</CODE><BR> Get the header. </TD>⌨️ 快捷键说明
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