postgisfeaturelocking.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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<A NAME="lockFeatures(org.geotools.filter.Filter)"><!-- --></A><H3>
lockFeatures</H3>
<PRE>
public int <B>lockFeatures</B>(<A HREF="../../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)
                 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>Lock features matching <code>filter</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html#lockFeatures(org.geotools.filter.Filter)">lockFeatures</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html" title="interface in org.geotools.data">FeatureLocking</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - 
<DT><B>Returns:</B><DD>Number of locked Features
<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><A HREF="../../../../org/geotools/data/FeatureLocking.html#lockFeatures(org.geotools.filter.Filter)"><CODE>FeatureLocking.lockFeatures(org.geotools.filter.Filter)</CODE></A></DL>
</DD>
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<A NAME="lockFeatures(org.geotools.data.Query)"><!-- --></A><H3>
lockFeatures</H3>
<PRE>
public int <B>lockFeatures</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></PRE>
<DL>
<DD>Lock features matching Query.
 
 <p>
 FeatureStores that have provided their own locking to will need to
 override this method.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html#lockFeatures(org.geotools.data.Query)">lockFeatures</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html" title="interface in org.geotools.data">FeatureLocking</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>query</CODE> - 
<DT><B>Returns:</B><DD>Number of locked Features
<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 we could not determine which feature to lock
         based on Query
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/UnsupportedOperationException.html" title="class or interface in java.lang">UnsupportedOperationException</A></CODE> - When DataStore does not provide a
         LockingManager
<DD><CODE><A HREF="../../../../org/geotools/data/DataSourceException.html" title="class in org.geotools.data">DataSourceException</A></CODE> - If feature to be locked does not exist<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/data/FeatureLocking.html#lockFeatures(org.geotools.data.Query)"><CODE>FeatureLocking.lockFeatures(org.geotools.data.Query)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="lockFeature(org.geotools.feature.Feature)"><!-- --></A><H3>
lockFeature</H3>
<PRE>
public int <B>lockFeature</B>(<A HREF="../../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>&nbsp;feature)
                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>HACK HACK HACK!!!  Don't use unless you're working on geoserver. just
 using ints for return now, to easily swap out with what we've got going
 on right now.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>feature</CODE> - DOCUMENT ME!
<DT><B>Returns:</B><DD>DOCUMENT ME!
<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> - DOCUMENT ME!
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/UnsupportedOperationException.html" title="class or interface in java.lang">UnsupportedOperationException</A></CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="unLockFeatures()"><!-- --></A><H3>
unLockFeatures</H3>
<PRE>
public void <B>unLockFeatures</B>()
                    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>Unlock all Features.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html#unLockFeatures()">unLockFeatures</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html" title="interface in org.geotools.data">FeatureLocking</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><DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/data/FeatureLocking.html#unLockFeatures()"><CODE>FeatureLocking.unLockFeatures()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="unLockFeatures(org.geotools.filter.Filter)"><!-- --></A><H3>
unLockFeatures</H3>
<PRE>
public void <B>unLockFeatures</B>(<A HREF="../../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)
                    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>Unlock Features specified by <code>filter</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html#unLockFeatures(org.geotools.filter.Filter)">unLockFeatures</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html" title="interface in org.geotools.data">FeatureLocking</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - 
<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><A HREF="../../../../org/geotools/data/FeatureLocking.html#unLockFeatures(org.geotools.filter.Filter)"><CODE>FeatureLocking.unLockFeatures(org.geotools.filter.Filter)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="unLockFeatures(org.geotools.data.Query)"><!-- --></A><H3>
unLockFeatures</H3>
<PRE>
public void <B>unLockFeatures</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></PRE>
<DL>
<DD>Unlock features specified by the <code>query</code>.
 
 <p>
 FeatureStores that have provided their own locking to will need to
 override this method.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html#unLockFeatures(org.geotools.data.Query)">unLockFeatures</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/FeatureLocking.html" title="interface in org.geotools.data">FeatureLocking</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>query</CODE> - 
<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>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/UnsupportedOperationException.html" title="class or interface in java.lang">UnsupportedOperationException</A></CODE> - If lockingManager is not provided
         by DataStore subclass
<DD><CODE><A HREF="../../../../org/geotools/data/DataSourceException.html" title="class in org.geotools.data">DataSourceException</A></CODE> - Filter describes an unlocked Feature, or
         authorization not held<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/data/FeatureLocking.html#unLockFeatures(org.geotools.data.Query)"><CODE>FeatureLocking.unLockFeatures(org.geotools.data.Query)</CODE></A></DL>
</DD>
</DL>
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