factorycreator.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

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<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/factory/FactoryCreator.html#getServiceProvider(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints, org.geotools.factory.Hints.Key)">getServiceProvider</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>&nbsp;category,
                   <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.Filter.html" title="class or interface in javax.imageio.spi">ServiceRegistry.Filter</A>&nbsp;filter,
                   <A HREF="../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory">Hints</A>&nbsp;hints,
                   <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A>&nbsp;key)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a provider for the specified category, using the specified map of hints (if any).
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<TD><B>Methods inherited from class <A HREF="../../../org/geotools/factory/FactoryRegistry.html" title="class in org.geotools.factory">FactoryRegistry</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/geotools/factory/FactoryRegistry.html#getClassLoaders()">getClassLoaders</A>, <A HREF="../../../org/geotools/factory/FactoryRegistry.html#getServiceProviders(java.lang.Class)">getServiceProviders</A>, <A HREF="../../../org/geotools/factory/FactoryRegistry.html#getServiceProviders(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints)">getServiceProviders</A>, <A HREF="../../../org/geotools/factory/FactoryRegistry.html#isAcceptable(java.lang.Object, java.lang.Class, org.geotools.factory.Hints)">isAcceptable</A>, <A HREF="../../../org/geotools/factory/FactoryRegistry.html#scanForPlugins()">scanForPlugins</A>, <A HREF="../../../org/geotools/factory/FactoryRegistry.html#setOrdering(java.lang.Class, boolean, javax.imageio.spi.ServiceRegistry.Filter, javax.imageio.spi.ServiceRegistry.Filter)">setOrdering</A>, <A HREF="../../../org/geotools/factory/FactoryRegistry.html#setOrdering(java.lang.Class, java.util.Comparator)">setOrdering</A></CODE></TD>
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<TD><B>Methods inherited from class <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html" title="class or interface in javax.imageio.spi">ServiceRegistry</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#contains(java.lang.Object)" title="class or interface in javax.imageio.spi">contains</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#deregisterAll()" title="class or interface in javax.imageio.spi">deregisterAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#deregisterAll(java.lang.Class)" title="class or interface in javax.imageio.spi">deregisterAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#deregisterServiceProvider(java.lang.Object)" title="class or interface in javax.imageio.spi">deregisterServiceProvider</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#deregisterServiceProvider(java.lang.Object, java.lang.Class)" title="class or interface in javax.imageio.spi">deregisterServiceProvider</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#finalize()" title="class or interface in javax.imageio.spi">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#getCategories()" title="class or interface in javax.imageio.spi">getCategories</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#getServiceProviderByClass(java.lang.Class)" title="class or interface in javax.imageio.spi">getServiceProviderByClass</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#getServiceProviders(java.lang.Class, boolean)" title="class or interface in javax.imageio.spi">getServiceProviders</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#getServiceProviders(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, boolean)" title="class or interface in javax.imageio.spi">getServiceProviders</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#lookupProviders(java.lang.Class)" title="class or interface in javax.imageio.spi">lookupProviders</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#lookupProviders(java.lang.Class, java.lang.ClassLoader)" title="class or interface in javax.imageio.spi">lookupProviders</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#registerServiceProvider(java.lang.Object)" title="class or interface in javax.imageio.spi">registerServiceProvider</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#registerServiceProvider(java.lang.Object, java.lang.Class)" title="class or interface in javax.imageio.spi">registerServiceProvider</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#registerServiceProviders(java.util.Iterator)" title="class or interface in javax.imageio.spi">registerServiceProviders</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#setOrdering(java.lang.Class, java.lang.Object, java.lang.Object)" title="class or interface in javax.imageio.spi">setOrdering</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.html#unsetOrdering(java.lang.Class, java.lang.Object, java.lang.Object)" title="class or interface in javax.imageio.spi">unsetOrdering</A></CODE></TD>
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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>
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<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#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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<!-- ============ FIELD DETAIL =========== -->


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

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<B>Constructor Detail</B></FONT></TD>
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<A NAME="FactoryCreator(java.util.Collection)"><!-- --></A><H3>
FactoryCreator</H3>
<PRE>
public <B>FactoryCreator</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A>&nbsp;categories)</PRE>
<DL>
<DD>Constructs a new registry for the specified categories.
<P>
<DT><B>Parameters:</B><DD><CODE>categories</CODE> - The categories.</DL>

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

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<B>Method Detail</B></FONT></TD>
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<A NAME="getServiceProvider(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints, org.geotools.factory.Hints.Key)"><!-- --></A><H3>
getServiceProvider</H3>
<PRE>
public <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>getServiceProvider</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>&nbsp;category,
                                 <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/spi/ServiceRegistry.Filter.html" title="class or interface in javax.imageio.spi">ServiceRegistry.Filter</A>&nbsp;filter,
                                 <A HREF="../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory">Hints</A>&nbsp;hints,
                                 <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A>&nbsp;key)
                          throws <A HREF="../../../org/geotools/factory/FactoryRegistryException.html" title="class in org.geotools.factory">FactoryRegistryException</A></PRE>
<DL>
<DD>Returns a provider for the specified category, using the specified map of hints (if any).
 If a provider matching the requirements is found in the registry, it is returned. Otherwise,
 a new provider is created and returned. This creation step is the only difference between
 this method and the <A HREF="../../../org/geotools/factory/FactoryRegistry.html#getServiceProvider(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints, org.geotools.factory.Hints.Key)">super-class method</A>.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/factory/FactoryRegistry.html#getServiceProvider(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints, org.geotools.factory.Hints.Key)">getServiceProvider</A></CODE> in class <CODE><A HREF="../../../org/geotools/factory/FactoryRegistry.html" title="class in org.geotools.factory">FactoryRegistry</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>category</CODE> - The category to look for.<DD><CODE>filter</CODE> - An optional filter, or  if none.<DD><CODE>hints</CODE> - A <A HREF="../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory">map of hints</A>, or  if none.<DD><CODE>key</CODE> - The key to use for looking for a user-provided instance in the hints, or
                   if none.
<DT><B>Returns:</B><DD>A factory for the specified category and hints (never ).
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/factory/FactoryNotFoundException.html" title="class in org.geotools.factory">FactoryNotFoundException</A></CODE> - if no factory was found, and the specified hints don't
         provide suffisient information for creating a new factory.
<DD><CODE><A HREF="../../../org/geotools/factory/FactoryRegistryException.html" title="class in org.geotools.factory">FactoryRegistryException</A></CODE> - if the factory can't be created for some other reason.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/factory/FactoryRegistry.html#getServiceProviders(java.lang.Class)"><CODE>FactoryRegistry.getServiceProviders(java.lang.Class)</CODE></A>, 
<A HREF="../../../org/geotools/factory/FactoryCreator.html#getServiceProvider(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints, org.geotools.factory.Hints.Key)"><CODE>getServiceProvider(java.lang.Class, javax.imageio.spi.ServiceRegistry.Filter, org.geotools.factory.Hints, org.geotools.factory.Hints.Key)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="createServiceProvider(java.lang.Class, java.lang.Class, org.geotools.factory.Hints)"><!-- --></A><H3>
createServiceProvider</H3>
<PRE>
protected <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>createServiceProvider</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>&nbsp;category,
                                       <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>&nbsp;implementation,
                                       <A HREF="../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory">Hints</A>&nbsp;hints)
                                throws <A HREF="../../../org/geotools/factory/FactoryRegistryException.html" title="class in org.geotools.factory">FactoryRegistryException</A></PRE>
<DL>
<DD>Creates a new instance of the specified factory using the specified hints.
 The default implementation tries to instantiate the given implementation class
 using the first of the following constructor found:
 <p>
 <ul>
   <li>Constructor with a single <A HREF="../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory"><CODE>Hints</CODE></A> argument.</li>
   <li>No-argument constructor.</li>
 </ul>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>category</CODE> - The category to instantiate.<DD><CODE>implementation</CODE> - The factory class to instantiate.<DD><CODE>hints</CODE> - The implementation hints.
<DT><B>Returns:</B><DD>The factory.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/factory/FactoryRegistryException.html" title="class in org.geotools.factory">FactoryRegistryException</A></CODE> - if the factory creation failed.</DL>
</DD>
</DL>
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