arcsdedatastore.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

 Locking support does not need to be provided for FeatureReaders.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStore.html#getFeatureReader(org.geotools.data.Query, org.geotools.data.Transaction)">getFeatureReader</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getFeatureReader(org.geotools.data.Query, org.geotools.data.Transaction)">getFeatureReader</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</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></DL>
</DD>
</DL>
<HR>

<A NAME="getUnsupportedFilter(java.lang.String, org.geotools.filter.Filter)"><!-- --></A><H3>
getUnsupportedFilter</H3>
<PRE>
protected <A HREF="../../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A> <B>getUnsupportedFilter</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;typeName,
                                      <A HREF="../../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</PRE>
<DL>
<DD>GR: if a subclass supports filtering, it should override this method to
 return the unsupported part of the passed filter, so a
 FilteringFeatureReader will be constructed upon it. Otherwise it will
 just return the same filter.
 
 <p>
 If the complete filter is supported, the subclass must return
 <code>Filter.NONE</code>
 </p>
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getUnsupportedFilter(java.lang.String, org.geotools.filter.Filter)">getUnsupportedFilter</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>typeName</CODE> - DOCUMENT ME!<DD><CODE>filter</CODE> - DOCUMENT ME!
<DT><B>Returns:</B><DD>DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="getFeatureWriter(java.lang.String)"><!-- --></A><H3>
getFeatureWriter</H3>
<PRE>
protected <A HREF="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A> <B>getFeatureWriter</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;typeName)
                                  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>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getFeatureWriter(java.lang.String)">getFeatureWriter</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>typeName</CODE> - 
<DT><B>Returns:</B><DD>FeatureWriter over contents of typeName
<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> - Subclass may throw IOException</DL>
</DD>
</DL>
<HR>

<A NAME="getFeatureWriter(java.lang.String, org.geotools.data.Transaction)"><!-- --></A><H3>
getFeatureWriter</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A> <B>getFeatureWriter</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;typeName,
                                      <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)
                               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>Provides a writer that iterates over all of the features.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStore.html#getFeatureWriter(java.lang.String, org.geotools.data.Transaction)">getFeatureWriter</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getFeatureWriter(java.lang.String, org.geotools.data.Transaction)">getFeatureWriter</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>typeName</CODE> - <DD><CODE>transaction</CODE> - 
<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="getFeatureWriter(java.lang.String, org.geotools.filter.Filter, org.geotools.data.Transaction)"><!-- --></A><H3>
getFeatureWriter</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A> <B>getFeatureWriter</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;typeName,
                                      <A HREF="../../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter,
                                      <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)
                               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>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStore.html#getFeatureWriter(java.lang.String, org.geotools.filter.Filter, org.geotools.data.Transaction)">getFeatureWriter</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getFeatureWriter(java.lang.String, org.geotools.filter.Filter, org.geotools.data.Transaction)">getFeatureWriter</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>typeName</CODE> - <DD><CODE>filter</CODE> - <DD><CODE>transaction</CODE> - 
<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="getFeatureWriterAppend(java.lang.String, org.geotools.data.Transaction)"><!-- --></A><H3>
getFeatureWriterAppend</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/FeatureWriter.html" title="interface in org.geotools.data">FeatureWriter</A> <B>getFeatureWriterAppend</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;typeName,
                                            <A HREF="../../../../org/geotools/data/Transaction.html" title="interface in org.geotools.data">Transaction</A>&nbsp;transaction)
                                     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>Provides a <code>FeatureWriter</code> in an appropriate state for
 immediately adding new <code>Feature</code> instances to the specified
 layer.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/data/DataStore.html#getFeatureWriterAppend(java.lang.String, org.geotools.data.Transaction)">getFeatureWriterAppend</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/data/DataStore.html" title="interface in org.geotools.data">DataStore</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getFeatureWriterAppend(java.lang.String, org.geotools.data.Transaction)">getFeatureWriterAppend</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>typeName</CODE> - <DD><CODE>transaction</CODE> - 
<DT><B>Returns:</B><DD>FeatureWriter whose hasNext() call will return false.
<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="getCount(org.geotools.data.Query)"><!-- --></A><H3>
getCount</H3>
<PRE>
protected int <B>getCount</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>Gets the number of the features that would be returned by this query for
 the specified feature type.
 
 <p>
 If getBounds(Query) returns <code>-1</code> due to expense consider
 using <code>getFeatures(Query).getCount()</code> as a an alternative.
 </p>
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getCount(org.geotools.data.Query)">getCount</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>query</CODE> - Contains the Filter and MaxFeatures to find the bounds for.
<DT><B>Returns:</B><DD>The number of Features provided by the Query or <code>-1</code>
         if count is too expensive to calculate or any errors or occur.
<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 there are errors getting the count</DL>
</DD>
</DL>
<HR>

<A NAME="getBounds(org.geotools.data.Query)"><!-- --></A><H3>
getBounds</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>getBounds</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>Computes the bounds of the features for the specified feature type that
 satisfy the query provided that there is a fast way to get that result.
 
 <p>
 Will return null if there is not fast way to compute the bounds. Since
 it's based on some kind of header/cached information, it's not
 guaranteed to be real bound of the features
 </p>
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html#getBounds(org.geotools.data.Query)">getBounds</A></CODE> in class <CODE><A HREF="../../../../org/geotools/data/AbstractDataStore.html" title="class in org.geotools.data">AbstractDataStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>query</CODE> - 
<DT><B>Returns:</B><DD>the bounds, or null if too expensive
<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>
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