filesystempagestore.html

来自「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」· HTML 代码 · 共 799 行 · 第 1/3 页

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Frees resources used by this <code>Node</code></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/geotools/index/DataDefinition.html" title="class in org.geotools.index">DataDefinition</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getDataDefinition()">getDataDefinition</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getEmptyNode(boolean)">getEmptyNode</A></B>(boolean&nbsp;isLeaf)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getForceChannel()">getForceChannel</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getMaxNodeEntries()">getMaxNodeEntries</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getMinNodeEntries()">getMinNodeEntries</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getNode(org.geotools.index.rtree.Entry, org.geotools.index.rtree.Node)">getNode</A></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)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the Node pointed by this entry and having this Node as parent</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getRoot()">getRoot</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;short</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#getSplitAlgorithm()">getSplitAlgorithm</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#setForceChannel(boolean)">setForceChannel</A></B>(boolean&nbsp;b)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If this is set to <code>true</code>, then every write to the index will
 call a force() on the associated channel</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/index/rtree/fs/FileSystemPageStore.html#setRoot(org.geotools.index.rtree.Node)">setRoot</A></B>(<A HREF="../../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A>&nbsp;node)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DOCUMENT ME!</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_PageStore"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class <A HREF="../../../../../org/geotools/index/rtree/PageStore.html" title="class in org.geotools.index.rtree">PageStore</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/geotools/index/rtree/PageStore.html#getReadLock()">getReadLock</A>, <A HREF="../../../../../org/geotools/index/rtree/PageStore.html#getWriteLock()">getWriteLock</A>, <A HREF="../../../../../org/geotools/index/rtree/PageStore.html#releaseLock(org.geotools.index.Lock)">releaseLock</A></CODE></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 =========== -->

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

<A NAME="B_SHORT"><!-- --></A><H3>
B_SHORT</H3>
<PRE>
protected static final byte <B>B_SHORT</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.index.rtree.fs.FileSystemPageStore.B_SHORT">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="B_INTEGER"><!-- --></A><H3>
B_INTEGER</H3>
<PRE>
protected static final byte <B>B_INTEGER</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.index.rtree.fs.FileSystemPageStore.B_INTEGER">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="B_LONG"><!-- --></A><H3>
B_LONG</H3>
<PRE>
protected static final byte <B>B_LONG</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.index.rtree.fs.FileSystemPageStore.B_LONG">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="B_FLOAT"><!-- --></A><H3>
B_FLOAT</H3>
<PRE>
protected static final byte <B>B_FLOAT</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.index.rtree.fs.FileSystemPageStore.B_FLOAT">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="B_DOUBLE"><!-- --></A><H3>
B_DOUBLE</H3>
<PRE>
protected static final byte <B>B_DOUBLE</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.index.rtree.fs.FileSystemPageStore.B_DOUBLE">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="B_STRING"><!-- --></A><H3>
B_STRING</H3>
<PRE>
protected static final byte <B>B_STRING</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.geotools.index.rtree.fs.FileSystemPageStore.B_STRING">Constant Field Values</A></DL>
</DL>

<!-- ========= 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="FileSystemPageStore(java.io.File)"><!-- --></A><H3>
FileSystemPageStore</H3>
<PRE>
public <B>FileSystemPageStore</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;file)
                    throws <A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></PRE>
<DL>
<DD>Loads an index from the specified <code>File</code>, if the file doesn't
 exists or is 0 length, a new index will be created with default values
 for maxNodeEntries, minNodeEntries and splitAlgorithm
<P>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - The file that stores the index
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></CODE></DL>
<HR>

<A NAME="FileSystemPageStore(java.io.File, org.geotools.index.DataDefinition)"><!-- --></A><H3>
FileSystemPageStore</H3>
<PRE>
public <B>FileSystemPageStore</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;file,
                           <A HREF="../../../../../org/geotools/index/DataDefinition.html" title="class in org.geotools.index">DataDefinition</A>&nbsp;def)
                    throws <A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></PRE>
<DL>
<DD>DOCUMENT ME!
<P>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - <DD><CODE>def</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></CODE></DL>
<HR>

<A NAME="FileSystemPageStore(java.io.File, org.geotools.index.DataDefinition, int, int, short)"><!-- --></A><H3>
FileSystemPageStore</H3>
<PRE>
public <B>FileSystemPageStore</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;file,
                           <A HREF="../../../../../org/geotools/index/DataDefinition.html" title="class in org.geotools.index">DataDefinition</A>&nbsp;def,
                           int&nbsp;maxNodeEntries,
                           int&nbsp;minNodeEntries,
                           short&nbsp;splitAlg)
                    throws <A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></PRE>
<DL>
<DD>Create and index with the specified values, if the file exists then an
 <code>RTreeException</code> will be thrown.
<P>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - The file to store the index<DD><CODE>def</CODE> - DOCUMENT ME!<DD><CODE>maxNodeEntries</CODE> - <DD><CODE>minNodeEntries</CODE> - <DD><CODE>splitAlg</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></CODE></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="getRoot()"><!-- --></A><H3>
getRoot</H3>
<PRE>
public <A HREF="../../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A> <B>getRoot</B>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../org/geotools/index/rtree/PageStore.html" title="class in org.geotools.index.rtree">PageStore</A></CODE></B></DD>
<DD>DOCUMENT ME!
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/index/rtree/PageStore.html#getRoot()">getRoot</A></CODE> in class <CODE><A HREF="../../../../../org/geotools/index/rtree/PageStore.html" title="class in org.geotools.index.rtree">PageStore</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../org/geotools/index/rtree/PageStore.html#getRoot()"><CODE>PageStore.getRoot()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setRoot(org.geotools.index.rtree.Node)"><!-- --></A><H3>
setRoot</H3>
<PRE>
public void <B>setRoot</B>(<A HREF="../../../../../org/geotools/index/rtree/Node.html" title="class in org.geotools.index.rtree">Node</A>&nbsp;node)
             throws <A HREF="../../../../../org/geotools/index/TreeException.html" title="class in org.geotools.index">TreeException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../org/geotools/index/rtree/PageStore.html" title="class in org.geotools.index.rtree">PageStore</A></CODE></B></DD>
<DD>DOCUMENT ME!
<P>