directorydatastore.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="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#getFeatureWriter(java.lang.String, org.geotools.data.Transaction)">getFeatureWriter</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;typeName,
                 <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Access FeatureWriter for modification of the DataStore typeName.

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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#getFeatureWriterAppend(java.lang.String, org.geotools.data.Transaction)">getFeatureWriterAppend</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;typeName,
                       <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Aquire a FeatureWriter for adding new content to a FeatureType.

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../org/geotools/data/LockingManager.html" title="interface in org.geotools.data">LockingManager</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#getLockingManager()">getLockingManager</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retrieve a per featureID based locking service from this DataStore.

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#getSchema(java.lang.String)">getSchema</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;typeName)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retrieve FeatureType metadata by <code>typeName</code>.

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#getTypeNames()">getTypeNames</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retrieves a list of of the available FeatureTypes.

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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../org/geotools/data/FeatureSource.html" title="interface in org.geotools.data">FeatureSource</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#getView(org.geotools.data.Query)">getView</A></B>(<A HREF="../../../../org/geotools/data/Query.html" title="interface in org.geotools.data">Query</A>&nbsp;query)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Access a FeatureSource for Query providing a high-level API.
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#lockFeatureID(java.lang.String, java.lang.String, org.geotools.data.Transaction, org.geotools.data.FeatureLock)">lockFeatureID</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;typeName,
              <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;authID,
              <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction,
              <A HREF="../../../../org/geotools/data/FeatureLock.html" title="interface in org.geotools.data">FeatureLock</A>&nbsp;featureLock)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FeatureID based locking.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#refresh(java.lang.String, org.geotools.data.Transaction)">refresh</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;authID,
        <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Refresh locks held by the authorization <code>lockID</code>.

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<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#release(java.lang.String, org.geotools.data.Transaction)">release</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;authID,
        <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Release locks held by the authorization <code>lockID</code>.

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#unLockFeatureID(java.lang.String, java.lang.String, org.geotools.data.Transaction, org.geotools.data.FeatureLock)">unLockFeatureID</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;typeName,
                <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;authID,
                <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction,
                <A HREF="../../../../org/geotools/data/FeatureLock.html" title="interface in org.geotools.data">FeatureLock</A>&nbsp;featureLock)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FeatureID based unlocking.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/data/dir/DirectoryDataStore.html#updateSchema(java.lang.String, org.geotools.feature.FeatureType)">updateSchema</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;typeName,
             <A HREF="../../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A>&nbsp;featureType)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Used to force namespace and CS info into a persistent change.
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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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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<TR BGCOLOR="white" CLASS="TableRowColor">
<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#finalize()" title="class or interface in java.lang">finalize</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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<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<B>Constructor Detail</B></FONT></TD>
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</TABLE>

<A NAME="DirectoryDataStore(java.io.File, java.lang.String[])"><!-- --></A><H3>
DirectoryDataStore</H3>
<PRE>
public <B>DirectoryDataStore</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;f,
                          <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[]&nbsp;co)
                   throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/MalformedURLException.html" title="class or interface in java.net">MalformedURLException</A>,
                          <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>Creates a new DirectoryDataStore object.
<P>
<DT><B>Parameters:</B><DD><CODE>f</CODE> - File the directory<DD><CODE>co</CODE> - list of file suffixes in order of preference for creating new
        FTs
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/MalformedURLException.html" title="class or interface in java.net">MalformedURLException</A></CODE>
<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>

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

<A NAME="method_detail"><!-- --></A>
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<B>Method Detail</B></FONT></TD>
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<A NAME="getView(org.geotools.data.Query)"><!-- --></A><H3>
getView</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/FeatureSource.html" title="interface in org.geotools.data">FeatureSource</A> <B>getView</B>(<A HREF="../../../../org/geotools/data/Query.html" title="interface in org.geotools.data">Query</A>&nbsp;query)
                      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>,
                             <A HREF="../../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE></B></DD>
<DD>Access a FeatureSource for Query providing a high-level API.
 <p>
 The provided Query does not need to completely cover the existing
 schema for Query.getTypeName(). The result will mostly likely only be
 a FeatureSource and probably wont' allow write access by the
 FeatureStore method.
 </p>
 <p>
 By using Query we allow support for reprojection, in addition
 to overriding the CoordinateSystem used by the native FeatureType.
 </p>
 <p>
 We may wish to limit this method to only support Queries using
 Filter.ALL.
 </p>
 <p>
 Update - GeoServer has an elegatent implementation of this functionality
 that we could steal. GeoServerFeatureSource, GeoServerFeatureStore and
 GeoServerFeatureLocking serve as a working prototype.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStore.html#getView(org.geotools.data.Query)">getView</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>query</CODE> - Query.getTypeName() locates FeatureType being viewed
<DT><B>Returns:</B><DD>FeatureSource providing opperations for featureType
<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> - If FeatureSource is not available
<DD><CODE><A HREF="../../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></CODE> - If fetureType is not covered by existing schema</DL>
</DD>
</DL>
<HR>

<A NAME="getTypeNames()"><!-- --></A><H3>