vpfdatastorefactory.html

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<A NAME="createDataStore(java.util.Map)"><!-- --></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/util/Map.html" title="class or interface in java.util">Map</A>&nbsp;params)
                          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/DataStoreFactorySpi.html" title="interface in org.geotools.data">DataStoreFactorySpi</A></CODE></B></DD>
<DD>Construct a live data source using the params specifed.

 <p>
 You can think of this as setting up a connection to the back end data
 source.
 </p>

 <p>
 Magic Params: the following params are magic and are honoured by
 convention by the GeoServer and uDig application.

 <ul>
 <li>
 "user": is taken to be the user name
 </li>
 <li>
 "passwd": is taken to be the password
 </li>
 <li>
 "namespace": is taken to be the namespace prefix (and will be kept in
 sync with GeoServer namespace management.
 </li>
 </ul>

 When we eventually move over to the use of OpperationalParam we will
 have to find someway to codify this convention.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#createDataStore(java.util.Map)">createDataStore</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 store. Typical key values for the map include: url -
        location of a resource, used by file reading datasources. dbtype
        - the type of the database to connect to, e.g. postgis, mysql
<DT><B>Returns:</B><DD>The created DataStore, this may be null if the required resource
         was not found or if insufficent parameters were given. Note
         that canProcess() should have returned false if the problem is
         to do with insuficent parameters.
<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="createNewDataStore(java.util.Map)"><!-- --></A><H3>
createNewDataStore</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A> <B>createNewDataStore</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)
                             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>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStoreFactorySpi.html#createNewDataStore(java.util.Map)">createNewDataStore</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>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="getParametersInfo()"><!-- --></A><H3>
getParametersInfo</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/DataStoreFactorySpi.Param.html" title="class in org.geotools.data">DataStoreFactorySpi.Param</A>[] <B>getParametersInfo</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>MetaData about the required Parameters (for createDataStore).

 <p>
 Interpretation of FeatureDescriptor values:
 </p>

 <ul>
 <li>
 getDisplayName(): Gets the localized display name of this feature.
 </li>
 <li>
 getName(): Gets the programmatic name of this feature (used as the key
 in params)
 </li>
 <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</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.</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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