datautilities.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

<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#template(org.geotools.feature.FeatureType, java.lang.String, java.lang.Object[])">template</A></B>(<A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A>&nbsp;featureType,
         <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,
         <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[]&nbsp;emptyAtts)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#traverse(org.geotools.filter.Expression, org.geotools.filter.FilterVisitor)">traverse</A></B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>&nbsp;expression,
         <A HREF="../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A>&nbsp;visitor)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#traverse(org.geotools.filter.Filter, org.geotools.filter.FilterVisitor)">traverse</A></B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter,
         <A HREF="../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A>&nbsp;visitor)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#traverse(java.util.Set, org.geotools.filter.FilterVisitor)">traverse</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A>&nbsp;set,
         <A HREF="../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A>&nbsp;visitor)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs a depth first traversal on Filter.
 
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#traverseDepth(org.geotools.filter.Expression)">traverseDepth</A></B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>&nbsp;expression)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs a depth first traversal of Filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#traverseDepth(org.geotools.filter.Filter)">traverseDepth</A></B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs a depth first traversal of Filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#wrapGc(org.opengis.coverage.grid.GridCoverage)">wrapGc</A></B>(GridCoverage&nbsp;gridCoverage)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wraps a grid coverage into a Feature. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/data/DataUtilities.html#wrapGcReader(org.geotools.data.coverage.grid.AbstractGridCoverage2DReader, org.opengis.parameter.GeneralParameterValue[])">wrapGcReader</A></B>(<A HREF="../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid">AbstractGridCoverage2DReader</A>&nbsp;gridCoverageReader,
             GeneralParameterValue[]&nbsp;params)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wraps a grid coverage into a Feature. </TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<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>
</TR>
<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>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->


<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="DataUtilities()"><!-- --></A><H3>
DataUtilities</H3>
<PRE>
public <B>DataUtilities</B>()</PRE>
<DL>
</DL>

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

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="attributeNames(org.geotools.feature.FeatureType)"><!-- --></A><H3>
attributeNames</H3>
<PRE>
public static <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>attributeNames</B>(<A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A>&nbsp;featureType)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>featureType</CODE> - DOCUMENT ME!
<DT><B>Returns:</B><DD>DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="attributeNames(org.geotools.filter.Filter)"><!-- --></A><H3>
attributeNames</H3>
<PRE>
public static <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>attributeNames</B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - DOCUMENT ME!
<DT><B>Returns:</B><DD>DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="attributeNames(org.geotools.filter.Expression)"><!-- --></A><H3>
attributeNames</H3>
<PRE>
public static <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>attributeNames</B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>&nbsp;expression)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="traverse(org.geotools.filter.Filter, org.geotools.filter.FilterVisitor)"><!-- --></A><H3>
traverse</H3>
<PRE>
public static void <B>traverse</B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter,
                            <A HREF="../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A>&nbsp;visitor)</PRE>
<DL>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - DOCUMENT ME!<DD><CODE>visitor</CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="traverse(org.geotools.filter.Expression, org.geotools.filter.FilterVisitor)"><!-- --></A><H3>
traverse</H3>
<PRE>
public static void <B>traverse</B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>&nbsp;expression,
                            <A HREF="../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A>&nbsp;visitor)</PRE>
<DL>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>expression</CODE> - DOCUMENT ME!<DD><CODE>visitor</CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="traverse(java.util.Set, org.geotools.filter.FilterVisitor)"><!-- --></A><H3>
traverse</H3>
<PRE>
public static void <B>traverse</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A>&nbsp;set,
                            <A HREF="../../../org/geotools/filter/FilterVisitor.html" title="interface in org.geotools.filter">FilterVisitor</A>&nbsp;visitor)</PRE>
<DL>
<DD>Performs a depth first traversal on Filter.
 
 <p>
 Filters can contain Expressions and other Filters, this method will call
 visitor.visit( Filter ) and visitor.visit( Expression )
 </p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>set</CODE> - Set of Filter and Expression information<DD><CODE>visitor</CODE> - Vistor to traverse across set</DL>
</DD>
</DL>
<HR>

<A NAME="traverseDepth(org.geotools.filter.Filter)"><!-- --></A><H3>
traverseDepth</H3>
<PRE>
public static <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A> <B>traverseDepth</B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</PRE>
<DL>
<DD>Performs a depth first traversal of Filter.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - 
<DT><B>Returns:</B><DD>Set of Filters in traversing filter</DL>
</DD>
</DL>
<HR>

<A NAME="traverseDepth(org.geotools.filter.Expression)"><!-- --></A><H3>
traverseDepth</H3>
<PRE>
public static <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A> <B>traverseDepth</B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>&nbsp;expression)</PRE>
<DL>
<DD>Performs a depth first traversal of Filter.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>expression</CODE> - 
<DT><B>Returns:</B><DD>Set of Filters in traversing filter</DL>
</DD>
</DL>
<HR>

<A NAME="compare(org.geotools.feature.FeatureType, org.geotools.feature.FeatureType)"><!-- --></A><H3>
compare</H3>
<PRE>