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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 11:36:22 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>RecyclingTileFactory (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.image.imageio.RecyclingTileFactory class"><META NAME="keywords" CONTENT="canReclaimMemory()"><META NAME="keywords" CONTENT="isMemoryCache()"><META NAME="keywords" CONTENT="getMemoryUsed()"><META NAME="keywords" CONTENT="flush()"><META NAME="keywords" CONTENT="createTile()"><META NAME="keywords" CONTENT="recycleTile()"><META NAME="keywords" CONTENT="update()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="RecyclingTileFactory (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/RecyclingTileFactory.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/image/imageio/IIOMetadataDumper.html" title="class in org.geotools.image.imageio"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="RecyclingTileFactory.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 | <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.image.imageio</FONT><BR>Class RecyclingTileFactory</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"><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Observable.html" title="class or interface in java.util">Observable</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>RecyclingTileFactory</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Observer.html" title="class or interface in java.util">Observer</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/TileFactory.html" title="class or interface in javax.media.jai">TileFactory</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/TileRecycler.html" title="class or interface in javax.media.jai">TileRecycler</A></DD></DL><HR><DL><DT>public class <B>RecyclingTileFactory</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Observable.html" title="class or interface in java.util">Observable</A><DT>implements <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/TileFactory.html" title="class or interface in javax.media.jai">TileFactory</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/TileRecycler.html" title="class or interface in javax.media.jai">TileRecycler</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Observer.html" title="class or interface in java.util">Observer</A></DL><P>A simple implementation of <code>TileFactory</code> wherein the tiles returned from <code>createTile()</code> attempt to re-use primitive arrays provided by the <code>TileRecycler</code> method <code>recycleTile()</code>. <p> A simple example of the use of this class is as follows wherein image files are read, each image is filtered, and each output written to a file: <pre> String[] sourceFiles; // source file paths KernelJAI kernel; // filtering kernel // Create a RenderingHints object and set hints. RenderingHints rh = new RenderingHints(null); RecyclingTileFactory rtf = new RecyclingTileFactory(); rh.put(JAI.KEY_TILE_RECYCLER, rtf); rh.put(JAI.KEY_TILE_FACTORY, rtf); rh.put(JAI.KEY_IMAGE_LAYOUT, new ImageLayout().setTileWidth(32).setTileHeight( 32)); int counter = 0; // Read each image, filter it, and save the output to a file. for (int i = 0; i < sourceFiles.length; i++) { PlanarImage source = JAI.create("fileload", sourceFiles[i]); ParameterBlock pb = (new ParameterBlock()).addSource(source).add(kernel); // The TileFactory hint will cause tiles to be created by 'rtf'. RenderedOp dest = JAI.create("convolve", pb, rh); String fileName = "image_" + (++counter) + ".tif"; JAI.create("filestore", dest, fileName); // The TileRecycler hint will cause arrays to be reused by 'rtf'. dest.dispose(); } </pre> In the above code, if the <code>SampleModel</code> of all source images is identical, then data arrays should only be created in the first iteration. </p><P><P><DL><DT><B>Since:</B></DT> <DD>JAI 1.1.2</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== 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/image/imageio/RecyclingTileFactory.html#RecyclingTileFactory(java.util.Observable)">RecyclingTileFactory</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Observable.html" title="class or interface in java.util">Observable</A> tileCache)</CODE><BR> Constructs a <code>RecyclingTileFactory</code>.</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> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/image/imageio/RecyclingTileFactory.html#canReclaimMemory()">canReclaimMemory</A></B>()</CODE><BR> Returns <code>true</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/WritableRaster.html" title="class or interface in java.awt.image">WritableRaster</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/image/imageio/RecyclingTileFactory.html#createTile(java.awt.image.SampleModel, java.awt.Point)">createTile</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/SampleModel.html" title="class or interface in java.awt.image">SampleModel</A> sampleModel, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Point.html" title="class or interface in java.awt">Point</A> location)</CODE><BR> </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/image/imageio/RecyclingTileFactory.html#flush()">flush</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/image/imageio/RecyclingTileFactory.html#getMemoryUsed()">getMemoryUsed</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/image/imageio/RecyclingTileFactory.html#isMemoryCache()">isMemoryCache</A></B>()</CODE><BR> Returns <code>true</code>.</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/image/imageio/RecyclingTileFactory.html#recycleTile(java.awt.image.Raster)">recycleTile</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/Raster.html" title="class or interface in java.awt.image">Raster</A> tile)</CODE>⌨️ 快捷键说明
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