gmldatastorefactory.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

 <li>
 getShortDescription(): Gets the short description of this feature.
 </li>
 </ul>

 <p>
 This should be the same as:
 </p>
 <pre><code>
 Object params = factory.getParameters();
 BeanInfo info = getBeanInfo( params );

 return info.getPropertyDescriptors();
 <code></pre>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#getParametersInfo()">getParametersInfo</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html" title="interface in org.geotools.data">DataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>Param array describing the Map for createDataStore<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#getParametersInfo()"><CODE>DataStoreFactorySpi.getParametersInfo()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="canProcess(java.util.Map)"><!-- --></A><H3>
canProcess</H3>
<PRE>
public boolean <B>canProcess</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A>&nbsp;params)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html" title="interface in org.geotools.data">DataStoreFactorySpi</A></CODE></B></DD>
<DD>Test to see if this factory is suitable for processing the data pointed
 to by the params map.

 <p>
 If this datasource requires a number of parameters then this mehtod
 should check that they are all present and that they are all valid. If
 the datasource is a file reading data source then the extentions or
 mime types of any files specified should be checked. For example, a
 Shapefile datasource should check that the url param ends with shp,
 such tests should be case insensative.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#canProcess(java.util.Map)">canProcess</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html" title="interface in org.geotools.data">DataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>params</CODE> - The full set of information needed to construct a live
        data source.
<DT><B>Returns:</B><DD>booean true if and only if this factory can process the resource
         indicated by the param set and all the required params are
         pressent.<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#canProcess(java.util.Map)"><CODE>DataStoreFactorySpi.canProcess(java.util.Map)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isAvailable()"><!-- --></A><H3>
isAvailable</H3>
<PRE>
public boolean <B>isAvailable</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html" title="interface in org.geotools.data">DataStoreFactorySpi</A></CODE></B></DD>
<DD>Test to see if this datastore is available, if it has all the
 appropriate libraries to construct a datastore.  Most datastores should
 return true, because geotools will distribute the appropriate
 libraries.  Though it's not a bad idea for DataStoreFactories to check
 to make sure that the  libraries are there.  OracleDataStoreFactory is
 an example of one that may generally return false, since geotools can
 not distribute the oracle jars, they must be added by the client.  One
 may ask how this is different than canProcess, and basically available
 is used by the DataStoreFinder getAvailableDataStore method, so that
 DataStores that can not even be used do not show up as options in gui
 applications.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#isAvailable()">isAvailable</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html" title="interface in org.geotools.data">DataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD><tt>true</tt> if and only if this factory has all the
         appropriate jars on the classpath to create DataStores.<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#isAvailable()"><CODE>DataStoreFactorySpi.isAvailable()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getFileExtensions()"><!-- --></A><H3>
getFileExtensions</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] <B>getFileExtensions</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></B></DD>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html#getFileExtensions()">getFileExtensions</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>An ordered list of file extensions which can be read by this
         dataStore.<DT><B>See Also:</B><DD><CODE>org.geotools.data.dir.FileDataStoreFactorySpi#getFileExtensions()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="canProcess(java.net.URL)"><!-- --></A><H3>
canProcess</H3>
<PRE>
public boolean <B>canProcess</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/URL.html" title="class or interface in java.net">URL</A>&nbsp;f)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></B></DD>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html#canProcess(java.net.URL)">canProcess</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>f</CODE> - URL a url to a real file (may not be local)
<DT><B>Returns:</B><DD>True when this dataStore can resolve and read the data specified
         by the URL.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><CODE>org.geotools.data.dir.FileDataStoreFactorySpi#canProcess(java.net.URL)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="testURL(java.net.URL)"><!-- --></A><H3>
testURL</H3>
<PRE>
public boolean <B>testURL</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/URL.html" title="class or interface in java.net">URL</A>&nbsp;f)
                throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="createDataStore(java.net.URL)"><!-- --></A><H3>
createDataStore</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A> <B>createDataStore</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/URL.html" title="class or interface in java.net">URL</A>&nbsp;url)
                          throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></B></DD>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html#createDataStore(java.net.URL)">createDataStore</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>url</CODE> - A URL to the data location for the single featureType of this
        DataStore
<DT><B>Returns:</B><DD>Returns an AbstractFileDataStore created from the data source
         provided.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><CODE>org.geotools.data.dir.FileDataStoreFactorySpi#createDataStore(java.net.URL)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getTypeName(java.net.URL)"><!-- --></A><H3>
getTypeName</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getTypeName</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/URL.html" title="class or interface in java.net">URL</A>&nbsp;url)
                   throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></B></DD>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html#getTypeName(java.net.URL)">getTypeName</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FileDataStoreFactorySpi.html" title="interface in org.geotools.data">FileDataStoreFactorySpi</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>url</CODE> - The location of the datum to parse into features
<DT><B>Returns:</B><DD>Returns the typename of the datum specified (on occasion this
         may involve starting the parse as well to get the FeatureType
         -- may not be instantanious).
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE><DT><B>See Also:</B><DD><CODE>org.geotools.data.dir.FileDataStoreFactorySpi#getTypeName(java.net.URL)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getImplementationHints()"><!-- --></A><H3>
getImplementationHints</H3>
<PRE>
public <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>getImplementationHints</B>()</PRE>
<DL>
<DD>Returns the implementation hints. The default implementation returns en empty map.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/factory/Factory.html#getImplementationHints()">getImplementationHints</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/factory/Factory.html" title="interface in org.geotools.factory">Factory</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The map of hints, or an <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Collections.html#EMPTY_MAP" title="class or interface in java.util">empty map</A>
         if none.</DL>
</DD>
</DL>
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