cachednodes.html

本程序是由JAVA实现的R-树新建、结点增加、删除功能。

<DD><CODE>java.io.IOException</CODE>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getSdNode(java.io.RandomAccessFile, java.lang.String, long, int, rtree.FileHdr)"><!-- --></A><H3>
getSdNode</H3>
<PRE>
public <A HREF="../rtree/seeded/SdNode.html" title="class in rtree.seeded">SdNode</A> <B>getSdNode</B>(java.io.RandomAccessFile&nbsp;file,
                        java.lang.String&nbsp;fileName,
                        long&nbsp;parentIndex,
                        int&nbsp;elmtType,
                        <A HREF="../rtree/FileHdr.html" title="class in rtree">FileHdr</A>&nbsp;flHdr)
                 throws <A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A>,
                        <A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A>,
                        java.io.FileNotFoundException,
                        java.io.IOException,
                        <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>This one returns an existing <code>SdNode</code>.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A></CODE>
<DD><CODE><A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A></CODE>
<DD><CODE>java.io.FileNotFoundException</CODE>
<DD><CODE>java.io.IOException</CODE>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getNode(java.io.RandomAccessFile, java.lang.String, long, rtree.FileHdr)"><!-- --></A><H3>
getNode</H3>
<PRE>
public <A HREF="../rtree/Node.html" title="class in rtree">Node</A> <B>getNode</B>(java.io.RandomAccessFile&nbsp;file,
                    java.lang.String&nbsp;fileName,
                    long&nbsp;lndIndex,
                    <A HREF="../rtree/FileHdr.html" title="class in rtree">FileHdr</A>&nbsp;flHdr)
             throws <A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A>,
                    <A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A>,
                    java.io.FileNotFoundException,
                    java.io.IOException,
                    <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>This one returns an existing <code>Node</code>.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A></CODE>
<DD><CODE><A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A></CODE>
<DD><CODE>java.io.FileNotFoundException</CODE>
<DD><CODE>java.io.IOException</CODE>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getNode(java.io.RandomAccessFile, java.lang.String, long, int, rtree.FileHdr)"><!-- --></A><H3>
getNode</H3>
<PRE>
public <A HREF="../rtree/Node.html" title="class in rtree">Node</A> <B>getNode</B>(java.io.RandomAccessFile&nbsp;file,
                    java.lang.String&nbsp;fileName,
                    long&nbsp;parentIndex,
                    int&nbsp;elmtType,
                    <A HREF="../rtree/FileHdr.html" title="class in rtree">FileHdr</A>&nbsp;flHdr)
             throws <A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A>,
                    <A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A>,
                    java.io.FileNotFoundException,
                    java.io.IOException,
                    <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>This one returns an new <code>SdNode</code>.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A></CODE>
<DD><CODE><A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A></CODE>
<DD><CODE>java.io.FileNotFoundException</CODE>
<DD><CODE>java.io.IOException</CODE>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getNode(java.io.RandomAccessFile, java.lang.String, long, int, rtree.FileHdr, rtree.Node)"><!-- --></A><H3>
getNode</H3>
<PRE>
public <A HREF="../rtree/Node.html" title="class in rtree">Node</A> <B>getNode</B>(java.io.RandomAccessFile&nbsp;file,
                    java.lang.String&nbsp;fileName,
                    long&nbsp;parentIndex,
                    int&nbsp;elmtType,
                    <A HREF="../rtree/FileHdr.html" title="class in rtree">FileHdr</A>&nbsp;flHdr,
                    <A HREF="../rtree/Node.html" title="class in rtree">Node</A>&nbsp;type)
             throws <A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A>,
                    <A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A>,
                    java.io.FileNotFoundException,
                    java.io.IOException,
                    <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>This one returns an new <code>Node</code>.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A></CODE>
<DD><CODE><A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A></CODE>
<DD><CODE>java.io.FileNotFoundException</CODE>
<DD><CODE>java.io.IOException</CODE>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getReadNode(java.io.RandomAccessFile, java.lang.String, long, rtree.FileHdr)"><!-- --></A><H3>
getReadNode</H3>
<PRE>
public <A HREF="../rtree/ReadNode.html" title="class in rtree">ReadNode</A> <B>getReadNode</B>(java.io.RandomAccessFile&nbsp;file,
                            java.lang.String&nbsp;fileName,
                            long&nbsp;lndIndex,
                            <A HREF="../rtree/FileHdr.html" title="class in rtree">FileHdr</A>&nbsp;flHdr)
                     throws <A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A>,
                            <A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A>,
                            java.io.FileNotFoundException,
                            java.io.IOException,
                            <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>This one return <code>ReadNode</code> a read only node.
     All clients that need only to query the rtree must at all cost call this method. This method will
     return a clones ReadNode, so that concurrent reads can take place (because none of the methods
     of <code>Node</code> are <code>synchronized</code>.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/IllegalValueException.html" title="class in rtree">IllegalValueException</A></CODE>
<DD><CODE><A HREF="../rtree/NodeReadException.html" title="class in rtree">NodeReadException</A></CODE>
<DD><CODE>java.io.FileNotFoundException</CODE>
<DD><CODE>java.io.IOException</CODE>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="flush()"><!-- --></A><H3>
flush</H3>
<PRE>
void <B>flush</B>()
     throws <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>Write all the diry nodes to the disc.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="remove(java.lang.String, long)"><!-- --></A><H3>
remove</H3>
<PRE>
void <B>remove</B>(java.lang.String&nbsp;fileName,
            long&nbsp;ndIndex)
      throws <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD>This method would be called only by those threads that need to modify the
     tree. Hence this method is automatically synchronized.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="removeAll()"><!-- --></A><H3>
removeAll</H3>
<PRE>
void <B>removeAll</B>()
         throws <A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></PRE>
<DL>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../rtree/NodeWriteException.html" title="class in rtree">NodeWriteException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="calKey(java.lang.String, int)"><!-- --></A><H3>
calKey</H3>
<PRE>
int <B>calKey</B>(java.lang.String&nbsp;fileName,
           int&nbsp;idx)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
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