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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

<DD><DL>
<DT><B>Parameters:</B><DD><CODE>node</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="getEmptyNode(boolean)"><!-- --></A><H3>
getEmptyNode</H3>
<PRE>
public abstract <A HREF="../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A> <B>getEmptyNode</B>(boolean&nbsp;isLeaf)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>isLeaf</CODE> - </DL>
</DD>
</DL>
<HR>

<A NAME="getNode(org.geotools.index.rtree.Entry, org.geotools.index.rtree.Node)"><!-- --></A><H3>
getNode</H3>
<PRE>
public abstract <A HREF="../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A> <B>getNode</B>(<A HREF="../../../../org/geotools/index/rtree/Entry.html" title="class in org.geotools.index.rtree">Entry</A>&nbsp;parentEntry,
                             <A HREF="../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A>&nbsp;parent)
                      throws <A HREF="../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></PRE>
<DL>
<DD>Returns the Node pointed by this entry and having this Node as parent
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>parentEntry</CODE> - <DD><CODE>parent</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></CODE> - DOCUMENT ME!</DL>
</DD>
</DL>
<HR>

<A NAME="createEntryPointingNode(org.geotools.index.rtree.Node)"><!-- --></A><H3>
createEntryPointingNode</H3>
<PRE>
public abstract <A HREF="../../../../org/geotools/index/rtree/Entry.html" title="class in org.geotools.index.rtree">Entry</A> <B>createEntryPointingNode</B>(<A HREF="../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A>&nbsp;node)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>node</CODE> - </DL>
</DD>
</DL>
<HR>

<A NAME="getMaxNodeEntries()"><!-- --></A><H3>
getMaxNodeEntries</H3>
<PRE>
public int <B>getMaxNodeEntries</B>()</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The maximum number of <code>Entry</code>s per page</DL>
</DD>
</DL>
<HR>

<A NAME="getMinNodeEntries()"><!-- --></A><H3>
getMinNodeEntries</H3>
<PRE>
public int <B>getMinNodeEntries</B>()</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The minimum number of <code>Entry</code>s per page</DL>
</DD>
</DL>
<HR>

<A NAME="getSplitAlgorithm()"><!-- --></A><H3>
getSplitAlgorithm</H3>
<PRE>
public short <B>getSplitAlgorithm</B>()</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The split algorithm to use</DL>
</DD>
</DL>
<HR>

<A NAME="getDataDefinition()"><!-- --></A><H3>
getDataDefinition</H3>
<PRE>
public <A HREF="../../../../org/geotools/index/DataDefinition.html" title="class in org.geotools.index">DataDefinition</A> <B>getDataDefinition</B>()</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="free(org.geotools.index.rtree.Node)"><!-- --></A><H3>
free</H3>
<PRE>
public abstract void <B>free</B>(<A HREF="../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A>&nbsp;node)</PRE>
<DL>
<DD>Frees resources used by this <code>Node</code>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>node</CODE> - The <code>Node</code> to free</DL>
</DD>
</DL>
<HR>

<A NAME="getWriteLock()"><!-- --></A><H3>
getWriteLock</H3>
<PRE>
public <A HREF="../../../../org/geotools/index/Lock.html" title="interface in org.geotools.index">Lock</A> <B>getWriteLock</B>()
                  throws <A HREF="../../../../org/geotools/index/LockTimeoutException.html" title="class in org.geotools.index">LockTimeoutException</A></PRE>
<DL>
<DD>Aquires a write lock to the store
<P>
<DD><DL>

<DT><B>Returns:</B><DD>an Object rapresenting the lock
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/index/LockTimeoutException.html" title="class in org.geotools.index">LockTimeoutException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getReadLock()"><!-- --></A><H3>
getReadLock</H3>
<PRE>
public <A HREF="../../../../org/geotools/index/Lock.html" title="interface in org.geotools.index">Lock</A> <B>getReadLock</B>()
                 throws <A HREF="../../../../org/geotools/index/LockTimeoutException.html" title="class in org.geotools.index">LockTimeoutException</A></PRE>
<DL>
<DD>Aquires a read lock to the store
<P>
<DD><DL>

<DT><B>Returns:</B><DD>an Object rapresenting the lock
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/index/LockTimeoutException.html" title="class in org.geotools.index">LockTimeoutException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="releaseLock(org.geotools.index.Lock)"><!-- --></A><H3>
releaseLock</H3>
<PRE>
public void <B>releaseLock</B>(<A HREF="../../../../org/geotools/index/Lock.html" title="interface in org.geotools.index">Lock</A>&nbsp;lock)</PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>lock</CODE> - </DL>
</DD>
</DL>
<HR>

<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public abstract void <B>close</B>()
                    throws <A HREF="../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DD><DL>

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