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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 11:36:21 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>Hints (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.factory.Hints class"><META NAME="keywords" CONTENT="JTS_GEOMETRY_FACTORY"><META NAME="keywords" CONTENT="JTS_COORDINATE_SEQUENCE_FACTORY"><META NAME="keywords" CONTENT="JTS_PRECISION_MODEL"><META NAME="keywords" CONTENT="JTS_SRID"><META NAME="keywords" CONTENT="CRS_AUTHORITY_FACTORY"><META NAME="keywords" CONTENT="CS_AUTHORITY_FACTORY"><META NAME="keywords" CONTENT="DATUM_AUTHORITY_FACTORY"><META NAME="keywords" CONTENT="CRS_FACTORY"><META NAME="keywords" CONTENT="CS_FACTORY"><META NAME="keywords" CONTENT="DATUM_FACTORY"><META NAME="keywords" CONTENT="COORDINATE_OPERATION_FACTORY"><META NAME="keywords" CONTENT="COORDINATE_OPERATION_AUTHORITY_FACTORY"><META NAME="keywords" CONTENT="MATH_TRANSFORM_FACTORY"><META NAME="keywords" CONTENT="GRID_COVERAGE_PROCESSOR"><META NAME="keywords" CONTENT="TILE_ENCODING"><META NAME="keywords" CONTENT="JAI_INSTANCE"><META NAME="keywords" CONTENT="SAMPLE_DIMENSION_TYPE"><META NAME="keywords" CONTENT="DEFAULT_COORDINATE_REFERENCE_SYSTEM"><META NAME="keywords" CONTENT="DATUM_SHIFT_METHOD"><META NAME="keywords" CONTENT="LENIENT_DATUM_SHIFT"><META NAME="keywords" CONTENT="FORCE_LONGITUDE_FIRST_AXIS_ORDER"><META NAME="keywords" CONTENT="FORCE_STANDARD_AXIS_DIRECTIONS"><META NAME="keywords" CONTENT="FORCE_STANDARD_AXIS_UNITS"><META NAME="keywords" CONTENT="IGNORE_COVERAGE_OVERVIEW"><META NAME="keywords" CONTENT="REPLACE_NON_GEOPHYSICS_VIEW"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Hints (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/Hints.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/factory/FactoryUsingVolatileDependencies.html" title="class in org.geotools.factory"><B>PREV CLASS</B></A> <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory"><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="Hints.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> | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_RenderingHints">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | METHOD</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.factory</FONT><BR>Class Hints</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/awt/RenderingHints.html" title="class or interface in java.awt">RenderingHints</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><B>Hints</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Cloneable.html" title="class or interface in java.lang">Cloneable</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A></DD></DL><HR><DL><DT>public final class <B>Hints</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.html" title="class or interface in java.awt">RenderingHints</A></DL><P>A set of hints providing control on factories to be used. <p> Those hints are typically used by renderers or grid coverage processors for example. They provides a way to control low-level details. Example: <p> <blockquote> <pre> CoordinateOperationFactory myFactory = &hellip RenderingHints hints = new RenderingHints(Hints.<A HREF="../../../org/geotools/factory/Hints.html#COORDINATE_OPERATION_FACTORY"><CODE>COORDINATE_OPERATION_FACTORY</CODE></A>, myFactory); AbstractProcessor processor = new DefaultProcessor(hints); </pre> </blockquote> <p> Any hint mentioned by this interface is considered to be API, failure to make use of a hint by a geotools factory implementation is considered a bug (as it will prevent the use of this library for application specific tasks). <p> When hints are used in conjuction with the Factory service discovery mechanism we have the complete geotools plugin system. By using hints to allow application code to effect service discovery we allow client code to retarget the geotools library for their needs. <p> While this works in practice for services which we control (like Feature creation), we also make use of other services.<P><P><DL><DT><B>Since:</B></DT> <DD>2.1</DD><DT><B>Author:</B></DT> <DD>Martin Desruisseaux</DD><DT><B>Module:</B></DT><DD><CODE><B>module/referencing</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-referencing/"><CODE>gt2-referencing.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/referencing/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/branches/2.3.x/module/referencing/src/org/geotools/factory/Hints.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>static class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A></B></CODE><BR> The type for keys used to control various aspects of the factory creation. </TD></TR></TABLE> <A NAME="nested_classes_inherited_from_class_java.util.Map"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Nested classes inherited from class <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.Entry.html" title="class or interface in java.util">Map.Entry</A></CODE></TD></TR></TABLE> <!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">⌨️ 快捷键说明
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