sqlencoderdb2.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>
 GEOMETRY_TOUCHES
 </li>
 <li>
 GEOMETRY_WITHIN
 </li>
 <li>
 GEOMETRY_DWITHIN
 </li>
 <li>
 GEOMETRY_BEYOND
 </li>
 </ul>
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/filter/FilterVisitor.html#visit(org.geotools.filter.GeometryFilter)">visit</A></CODE> in interface <CODE><A HREF="../../../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html#visit(org.geotools.filter.GeometryFilter)">visit</A></CODE> in class <CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html" title="class in org.geotools.filter">SQLEncoder</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - The geometry filter to be processed.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/RuntimeException.html" title="class or interface in java.lang">RuntimeException</A></CODE> - for IO exception<DT><B>See Also:</B><DD><A HREF="../../../../../org/geotools/filter/FilterVisitor.html#visit(org.geotools.filter.GeometryFilter)"><CODE>FilterVisitor.visit(org.geotools.filter.GeometryFilter)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="visitLiteralGeometry(org.geotools.filter.LiteralExpression)"><!-- --></A><H3>
visitLiteralGeometry</H3>
<PRE>
public void <B>visitLiteralGeometry</B>(<A HREF="../../../../../org/geotools/filter/LiteralExpression.html" title="interface in org.geotools.filter">LiteralExpression</A>&nbsp;expression)
                          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>Construct the appropriate geometry type from the WKT representation of a literal
 expression
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html#visitLiteralGeometry(org.geotools.filter.LiteralExpression)">visitLiteralGeometry</A></CODE> in class <CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html" title="class in org.geotools.filter">SQLEncoder</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>expression</CODE> - the expression turn into a geometry constructor.
<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> - Passes back exception if generated by
         this.out.write()</DL>
</DD>
</DL>
<HR>

<A NAME="db2Geom(com.vividsolutions.jts.geom.Geometry)"><!-- --></A><H3>
db2Geom</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>db2Geom</B>(<A HREF="http://www.jump-project.org/docs/jts/1.7/api/com/vividsolutions/jts/geom/Geometry.html" title="class or interface in com.vividsolutions.jts.geom">Geometry</A>&nbsp;geom)</PRE>
<DL>
<DD>Construct a geometry from the WKT representation of a geometry
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>geom</CODE> - the constructor for the geometry.</DL>
</DD>
</DL>
<HR>

<A NAME="setSRID(int)"><!-- --></A><H3>
setSRID</H3>
<PRE>
public void <B>setSRID</B>(int&nbsp;srid)</PRE>
<DL>
<DD>Set the value of the srid value to be used if a DB2 Spatial Extender
 geometry needs to be constructed.
 
 <p>
 This is specifically the DB2 Spatial Extender spatial reference system
 identifier and not a coordinate system identifier ala EPSG.
 </p>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>srid</CODE> - Spatial reference system identifier to be used.</DL>
</DD>
</DL>
<HR>

<A NAME="createFilterCapabilities()"><!-- --></A><H3>
createFilterCapabilities</H3>
<PRE>
protected <A HREF="../../../../../org/geotools/filter/FilterCapabilities.html" title="class in org.geotools.filter">FilterCapabilities</A> <B>createFilterCapabilities</B>()</PRE>
<DL>
<DD>Sets the DB2 filter capabilities.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html#createFilterCapabilities()">createFilterCapabilities</A></CODE> in class <CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html" title="class in org.geotools.filter">SQLEncoder</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>FilterCapabilities for DB2</DL>
</DD>
</DL>
<HR>

<A NAME="setSelectivityClause(java.lang.String)"><!-- --></A><H3>
setSelectivityClause</H3>
<PRE>
public void <B>setSelectivityClause</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;string)</PRE>
<DL>
<DD>Sets a SELECTIVITY clause that can be included with the spatial
 predicate to influence the query optimizer to exploit a spatial index
 if it exists.
 
 <p>
 The parameter should be of the form: <br>
 "SELECTIVITY 0.001" <br>
 where the numeric value is the fraction of rows that will be returned
 by using the index scan.  This doesn't have to be true.  The value
 0.001 is typically used to force the use of the spatial in all cases if
 the spatial index exists.
 </p>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>string</CODE> - a selectivity clause</DL>
</DD>
</DL>
<HR>

<A NAME="visit(org.geotools.filter.FidFilter)"><!-- --></A><H3>
visit</H3>
<PRE>
public void <B>visit</B>(<A HREF="../../../../../org/geotools/filter/FidFilter.html" title="interface in org.geotools.filter">FidFilter</A>&nbsp;filter)</PRE>
<DL>
<DD>Encodes an FidFilter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/filter/FilterVisitor.html#visit(org.geotools.filter.FidFilter)">visit</A></CODE> in interface <CODE><A HREF="../../../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html#visit(org.geotools.filter.FidFilter)">visit</A></CODE> in class <CODE><A HREF="../../../../../org/geotools/filter/SQLEncoder.html" title="class in org.geotools.filter">SQLEncoder</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/lang/RuntimeException.html" title="class or interface in java.lang">RuntimeException</A></CODE> - DOCUMENT ME!<DT><B>See Also:</B><DD><A HREF="../../../../../org/geotools/filter/SQLEncoder.html#visit(org.geotools.filter.FidFilter)"><CODE>SQLEncoder.visit(org.geotools.filter.FidFilter)</CODE></A></DL>
</DD>
</DL>
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