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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 11:36:23 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>FeatureSource (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.data.FeatureSource interface"><META NAME="keywords" CONTENT="getDataStore()"><META NAME="keywords" CONTENT="addFeatureListener()"><META NAME="keywords" CONTENT="removeFeatureListener()"><META NAME="keywords" CONTENT="getFeatures()"><META NAME="keywords" CONTENT="getSchema()"><META NAME="keywords" CONTENT="getBounds()"><META NAME="keywords" CONTENT="getCount()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="FeatureSource (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/FeatureSource.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/FeatureResults.html" title="interface in org.geotools.data"><B>PREV CLASS</B></A> <A HREF="../../../org/geotools/data/FeatureStore.html" title="interface in org.geotools.data"><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="FeatureSource.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: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <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</FONT><BR>Interface FeatureSource</H2><DL><DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../../org/geotools/data/FeatureLocking.html" title="interface in org.geotools.data">FeatureLocking</A>, <A HREF="../../../org/geotools/data/FeatureStore.html" title="interface in org.geotools.data">FeatureStore</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../org/geotools/data/AbstractFeatureLocking.html" title="class in org.geotools.data">AbstractFeatureLocking</A>, <A HREF="../../../org/geotools/data/AbstractFeatureSource.html" title="class in org.geotools.data">AbstractFeatureSource</A>, <A HREF="../../../org/geotools/data/AbstractFeatureStore.html" title="class in org.geotools.data">AbstractFeatureStore</A>, <A HREF="../../../org/geotools/data/view/DefaultView.html" title="class in org.geotools.data.view">DefaultView</A>, <A HREF="../../../org/geotools/data/jdbc/JDBCFeatureLocking.html" title="class in org.geotools.data.jdbc">JDBCFeatureLocking</A>, <A HREF="../../../org/geotools/data/jdbc/JDBCFeatureSource.html" title="class in org.geotools.data.jdbc">JDBCFeatureSource</A>, <A HREF="../../../org/geotools/data/jdbc/JDBCFeatureStore.html" title="class in org.geotools.data.jdbc">JDBCFeatureStore</A>, <A HREF="../../../org/geotools/data/postgis/PostgisFeatureLocking.html" title="class in org.geotools.data.postgis">PostgisFeatureLocking</A>, <A HREF="../../../org/geotools/data/wfs/WFSFeatureStore.html" title="class in org.geotools.data.wfs">WFSFeatureStore</A></DD></DL><HR><DL><DT>public interface <B>FeatureSource</B></DL><P>Highlevel API for Features from a specific location. <p> Individual Shapefiles, databases tables , etc. are referenced through this interface. Compare and constrast with DataStore. </p> <p> Differences from DataStore: </p> <ul> <li> This is a prototype DataSource replacement, the Transaction methods have been moved to an external object, and the locking api has been intergrated. </li> <li> FeatureCollection has been replaced with FeatureResult as we do not wish to indicate that results can be stored in memory. </li> <li> FeatureSource has been split into three interfaces, the intention is to use the instanceof opperator to check capabilities rather than the previous DataSourceMetaData. </li> </ul><P><P><DL><DT><B>Author:</B></DT> <DD>Jody Garnett, Ray Gallagher, Rob Hranac, TOPP, Chris Holmes, TOPP</DD><DT><B>Module:</B></DT><DD><CODE><B>module/api</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-api/"><CODE>gt2-api.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/api/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/api/src/org/geotools/data/FeatureSource.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== 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/FeatureSource.html#addFeatureListener(org.geotools.data.FeatureListener)">addFeatureListener</A></B>(<A HREF="../../../org/geotools/data/FeatureListener.html" title="interface in org.geotools.data">FeatureListener</A> listener)</CODE><BR> Adds a listener to the list that's notified each time a change to the FeatureStore occurs.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://www.jump-project.org/docs/jts/1.7/api/com/vividsolutions/jts/geom/Envelope.html" title="class or interface in com.vividsolutions.jts.geom">Envelope</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getBounds()">getBounds</A></B>()</CODE><BR> Gets the bounding box of this datasource. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://www.jump-project.org/docs/jts/1.7/api/com/vividsolutions/jts/geom/Envelope.html" title="class or interface in com.vividsolutions.jts.geom">Envelope</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getBounds(org.geotools.data.Query)">getBounds</A></B>(<A HREF="../../../org/geotools/data/Query.html" title="interface in org.geotools.data">Query</A> query)</CODE><BR> Gets the bounding box of the features that would be returned by this query. </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/FeatureSource.html#getCount(org.geotools.data.Query)">getCount</A></B>(<A HREF="../../../org/geotools/data/Query.html" title="interface in org.geotools.data">Query</A> query)</CODE><BR> Gets the number of the features that would be returned by this query. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getDataStore()">getDataStore</A></B>()</CODE><BR> Access to the DataStore implementing this FeatureStore. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getFeatures()">getFeatures</A></B>()</CODE><BR> Loads all features from the datasource into the return FeatureResults. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getFeatures(org.geotools.filter.Filter)">getFeatures</A></B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A> filter)</CODE><BR> Loads features from the datasource into the returned FeatureResults, based on the passed filter.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getFeatures(org.geotools.data.Query)">getFeatures</A></B>(<A HREF="../../../org/geotools/data/Query.html" title="interface in org.geotools.data">Query</A> query)</CODE><BR> Loads features from the datasource into the returned FeatureResults, based on the passed query.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/data/FeatureSource.html#getSchema()">getSchema</A></B>()</CODE><BR> Retrieves the featureType that features extracted from this datasource will be created with. </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/FeatureSource.html#removeFeatureListener(org.geotools.data.FeatureListener)">removeFeatureListener</A></B>(<A HREF="../../../org/geotools/data/FeatureListener.html" title="interface in org.geotools.data">FeatureListener</A> listener)</CODE><BR> Removes a listener from the list that's notified each time a change to the FeatureStore occurs.</TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="getDataStore()"><!-- --></A><H3>getDataStore</H3><PRE>public <A HREF="../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A> <B>getDataStore</B>()</PRE>⌨️ 快捷键说明
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