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

<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>features</CODE> - Array of features
<DT><B>Returns:</B><DD>FeatureReader spaning provided feature array
<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 provided features Are null or empty
<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> - DOCUMENT ME!</DL>
</DD>
</DL>
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<A NAME="source(org.geotools.feature.Feature[])"><!-- --></A><H3>
source</H3>
<PRE>
public static <A HREF="../../../org/geotools/data/FeatureSource.html" title="interface in org.geotools.data">FeatureSource</A> <B>source</B>(<A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>[]&nbsp;featureArray)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>featureArray</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/RuntimeException.html" title="class or interface in java.lang">RuntimeException</A></CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
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<A NAME="source(org.geotools.feature.FeatureCollection)"><!-- --></A><H3>
source</H3>
<PRE>
public static <A HREF="../../../org/geotools/data/FeatureSource.html" title="interface in org.geotools.data">FeatureSource</A> <B>source</B>(<A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A>&nbsp;collection)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>collection</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/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - DOCUMENT ME!
<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!</DL>
</DD>
</DL>
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<A NAME="results(org.geotools.feature.Feature[])"><!-- --></A><H3>
results</H3>
<PRE>
public static <A HREF="../../../org/geotools/data/FeatureResults.html" title="interface in org.geotools.data">FeatureResults</A> <B>results</B>(<A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>[]&nbsp;featureArray)
                              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><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></DL>
</DD>
</DL>
<HR>

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

<A NAME="reader(java.util.Collection)"><!-- --></A><H3>
reader</H3>
<PRE>
public static <A HREF="../../../org/geotools/data/FeatureReader.html" title="interface in org.geotools.data">FeatureReader</A> <B>reader</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A>&nbsp;collection)
                            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>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>collection</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!</DL>
</DD>
</DL>
<HR>

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

<A NAME="attributesEqual(java.lang.Object, java.lang.Object)"><!-- --></A><H3>
attributesEqual</H3>
<PRE>
public static boolean <B>attributesEqual</B>(<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;att,
                                      <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;otherAtt)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>att</CODE> - DOCUMENT ME!<DD><CODE>otherAtt</CODE> - DOCUMENT ME!
<DT><B>Returns:</B><DD>DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="createSubType(org.geotools.feature.FeatureType, java.lang.String[], org.opengis.referencing.crs.CoordinateReferenceSystem)"><!-- --></A><H3>
createSubType</H3>
<PRE>
public static <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>createSubType</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;properties,
                                        CoordinateReferenceSystem&nbsp;override)
                                 throws <A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></PRE>
<DL>
<DD>Create a derived FeatureType
 
 <p>
 </p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>featureType</CODE> - <DD><CODE>properties</CODE> - -
            if null, every property of the feature type in input will be
            used<DD><CODE>override</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="createSubType(org.geotools.feature.FeatureType, java.lang.String[], org.opengis.referencing.crs.CoordinateReferenceSystem, java.lang.String, java.net.URI)"><!-- --></A><H3>
createSubType</H3>
<PRE>
public static <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>createSubType</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;properties,
                                        CoordinateReferenceSystem&nbsp;override,
                                        <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/net/URI.html" title="class or interface in java.net">URI</A>&nbsp;namespace)
                                 throws <A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></PRE>
<DL>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="createSubType(org.geotools.feature.FeatureType, java.lang.String[])"><!-- --></A><H3>
createSubType</H3>
<PRE>
public static <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>createSubType</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;properties)
                                 throws <A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>featureType</CODE> - DOCUMENT ME!<DD><CODE>properties</CODE> - DOCUMENT ME!
<DT><B>Returns:</B><DD>DOCUMENT ME!
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="createType(java.lang.String, java.lang.String)"><!-- --></A><H3>
createType</H3>
<PRE>
public static <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>createType</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;identification,
                                     <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;typeSpec)
                              throws <A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></PRE>
<DL>
<DD>Utility method for FeatureType construction.
 
 <p>
 Will parse a String of the form: <i>"name:Type,name2:Type2,..."</i>
 </p>
 
 <p>
 Where <i>Type</i> is defined by createAttribute.
 </p>
 
 <p>
 You may indicate the default Geometry with an astrix: "*geom:Geometry".
 </p>
 
 <p>
 Example:<code>name:"",age:0,geom:Geometry,centroid:Point,url:java.io.URL"</code>
 </p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>identification</CODE> - identification of FeatureType: (<i>namesapce</i>).<i>typeName</i><DD><CODE>typeSpec</CODE> - Specification for FeatureType
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/feature/SchemaException.html" title="class in org.geotools.feature">SchemaException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="parse(org.geotools.feature.FeatureType, java.lang.String, java.lang.String[])"><!-- --></A><H3>
parse</H3>
<PRE>
public static <A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A> <B>parse</B>(<A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A>&nbsp;type,
                            <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;fid,
                            <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;text)
                     throws <A HREF="../../../org/geotools/feature/IllegalAttributeException.html" t