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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../neustore/base/DBIndex.html#allocate()">allocate</A></B>()</CODE>
<BR>
Assigns a new pageID.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../neustore/base/DBIndex.html#close()">close</A></B>()</CODE>
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Saves the header page to disk and flushes the buffer. </TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../neustore/base/DBIndex.html#freePage(int)">freePage</A></B>(int pageID)</CODE>
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Frees an empty page.</TD>
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<TD><B>Methods inherited from class java.lang.Object</B></TD>
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<TD><CODE>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<B>Field Detail</B></FONT></TD>
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<A NAME="CREATE"><!-- --></A><H3>
CREATE</H3>
<PRE>
public static final boolean <B>CREATE</B></PRE>
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<DT><B>See Also:</B><DD><A HREF="../../constant-values.html#neustore.base.DBIndex.CREATE">Constant Field Values</A></DL>
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<A NAME="OPEN"><!-- --></A><H3>
OPEN</H3>
<PRE>
public static final boolean <B>OPEN</B></PRE>
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<DT><B>See Also:</B><DD><A HREF="../../constant-values.html#neustore.base.DBIndex.OPEN">Constant Field Values</A></DL>
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<A NAME="buffer"><!-- --></A><H3>
buffer</H3>
<PRE>
public <A HREF="../../neustore/base/DBBuffer.html" title="class in neustore.base">DBBuffer</A> <B>buffer</B></PRE>
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<DD>The buffer manager.
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<A NAME="DBIndex(neustore.base.DBBuffer, java.lang.String, boolean)"><!-- --></A><H3>
DBIndex</H3>
<PRE>
public <B>DBIndex</B>(<A HREF="../../neustore/base/DBBuffer.html" title="class in neustore.base">DBBuffer</A> buffer, java.lang.String filename, boolean isCreate) throws java.io.IOException</PRE>
<DL>
<DD>Creates or Opens an index file.
<P>
<DT><B>Parameters:</B><DD><CODE>buffer</CODE> - the buffer manager<DD><CODE>filename</CODE> - the filename<DD><CODE>isCreate</CODE> - whether create (or open)<DT><B>Throws:</B><DD><CODE>java.io.IOException</CODE></DL>
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<A NAME="allocate()"><!-- --></A><H3>
allocate</H3>
<PRE>
public int <B>allocate</B>()</PRE>
<DL>
<DD>Assigns a new pageID.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the new page ID.</DL>
</DD>
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<A NAME="freePage(int)"><!-- --></A><H3>
freePage</H3>
<PRE>
public void <B>freePage</B>(int pageID) throws java.io.IOException</PRE>
<DL>
<DD>Frees an empty page.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pageID</CODE> - the to-be-freed page ID<DT><B>Throws:</B><DD><CODE>java.io.IOException</CODE></DL>
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<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <B>close</B>() throws java.io.IOException</PRE>
<DL>
<DD>Saves the header page to disk and flushes the buffer. It is important to call <code>close()</code> before exiting. Otherwise the file may be corrupted.
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<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.io.IOException</CODE></DL>
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