difffeaturereader.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

 This reader is not "live" to changes over the course of the Transaction. (Iterators are not
 always stable of the course of modifications)
 </p>
<P>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - <DD><CODE>diff2</CODE> - Differences of Feature by FID</DL>
<HR>

<A NAME="DiffFeatureReader(org.geotools.data.FeatureReader, org.geotools.data.Diff, org.geotools.filter.Filter)"><!-- --></A><H3>
DiffFeatureReader</H3>
<PRE>
public <B>DiffFeatureReader</B>(<A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A>&nbsp;reader,
                         <A HREF="../../../org/geotools/data/Diff.html" title="class in org.geotools.data">Diff</A>&nbsp;diff2,
                         <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</PRE>
<DL>
<DD>This constructor grabs a "copy" of the current diff.
 <p>
 This reader is not "live" to changes over the course of the Transaction. (Iterators are not
 always stable of the course of modifications)
 </p>
<P>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - <DD><CODE>diff2</CODE> - Differences of Feature by FID</DL>

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

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<B>Method Detail</B></FONT></TD>
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<A NAME="getFeatureType()"><!-- --></A><H3>
getFeatureType</H3>
<PRE>
public <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>getFeatureType</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></B></DD>
<DD>Return the FeatureType this reader has been configured to create.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/data/FeatureReader.html#getFeatureType()">getFeatureType</A></CODE> in interface <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the FeatureType of the Features this FeatureReader will create.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/data/FeatureReader.html#getFeatureType()"><CODE>FeatureReader.getFeatureType()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="next()"><!-- --></A><H3>
next</H3>
<PRE>
public <A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A> <B>next</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>,
                    <A HREF="../../../org/geotools/feature/IllegalAttributeException.html" title="class in org.geotools.feature">IllegalAttributeException</A>,
                    <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/NoSuchElementException.html" title="class or interface in java.util">NoSuchElementException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></B></DD>
<DD>Reads the next Feature in the FeatureReader.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/data/FeatureReader.html#next()">next</A></CODE> in interface <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The next feature in the reader.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/NoSuchElementException.html" title="class or interface in java.util">NoSuchElementException</A></CODE> - If there are no more Features in the
         Reader.
<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 an error occurs reading the Feature.
<DD><CODE><A HREF="../../../org/geotools/feature/IllegalAttributeException.html" title="class in org.geotools.feature">IllegalAttributeException</A></CODE> - If the attributes read do not comply
         with the FeatureType.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/data/FeatureReader.html#next()"><CODE>FeatureReader.next()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="hasNext()"><!-- --></A><H3>
hasNext</H3>
<PRE>
public boolean <B>hasNext</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><B>Description copied from interface: <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></B></DD>
<DD>Query whether this FeatureReader has another Feature.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/data/FeatureReader.html#hasNext()">hasNext</A></CODE> in interface <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>True if there are more Features to be read. In other words, true
         if calls to next would return a feature rather than throwing an
         exception.
<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 an error occurs determining if there are more
         Features.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/data/FeatureReader.html#hasNext()"><CODE>FeatureReader.hasNext()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <B>close</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><B>Description copied from interface: <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A></CODE></B></DD>
<DD>Release the underlying resources associated with this stream.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/data/FeatureReader.html#close()">close</A></CODE> in interface <CODE><A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</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> - DOCUMENT ME!<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/data/FeatureReader.html#close()"><CODE>FeatureReader.close()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="queryDiff()"><!-- --></A><H3>
queryDiff</H3>
<PRE>
protected void <B>queryDiff</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="querySpatialIndex()"><!-- --></A><H3>
querySpatialIndex</H3>
<PRE>
protected void <B>querySpatialIndex</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="queryAdded()"><!-- --></A><H3>
queryAdded</H3>
<PRE>
protected void <B>queryAdded</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="queryModified()"><!-- --></A><H3>
queryModified</H3>
<PRE>
protected void <B>queryModified</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="queryFidFilter()"><!-- --></A><H3>
queryFidFilter</H3>
<PRE>
protected void <B>queryFidFilter</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getIndexedFeatures()"><!-- --></A><H3>
getIndexedFeatures</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/List.html" title="class or interface in java.util">List</A> <B>getIndexedFeatures</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="extractBboxForSpatialIndexQuery(org.geotools.filter.GeometryFilter)"><!-- --></A><H3>
extractBboxForSpatialIndexQuery</H3>
<PRE>
protected <A HREF="http://www.jump-project.org/docs/jts/1.7/api/com/vividsolutions/jts/geom/Envelope.html" title="class or interface in com.vividsolutions.jts.geom">Envelope</A> <B>extractBboxForSpatialIndexQuery</B>(<A HREF="../../../org/geotools/filter/GeometryFilter.html" title="interface in org.geotools.filter">GeometryFilter</A>&nbsp;f)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="isDefaultGeometry(org.geotools.filter.AttributeExpression)"><!-- --></A><H3>
isDefaultGeometry</H3>
<PRE>
protected boolean <B>isDefaultGeometry</B>(<A HREF="../../../org/geotools/filter/AttributeExpression.html" title="interface in org.geotools.filter">AttributeExpression</A>&nbsp;ae)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="isSubsetOfBboxFilter(org.geotools.filter.Filter)"><!-- --></A><H3>
isSubsetOfBboxFilter</H3>
<PRE>
protected boolean <B>isSubsetOfBboxFilter</B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;f)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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