btree.html

Axion 是一个小型的

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<B>Constructor Detail</B></FONT></TD>
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<A NAME="BTree(java.io.File, java.lang.String, int)"><!-- --></A><H3>
BTree</H3>
<PRE>
public <B>BTree</B>(<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/File.html">File</A>&nbsp;idxDir,
             <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/String.html">String</A>&nbsp;idxName,
             int&nbsp;degree)
      throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Create or load a new root node</DL>
<HR>

<A NAME="BTree(java.io.File, java.lang.String, int, org.axiondb.util.BTree)"><!-- --></A><H3>
BTree</H3>
<PRE>
public <B>BTree</B>(<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/File.html">File</A>&nbsp;idxDir,
             <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/String.html">String</A>&nbsp;idxName,
             int&nbsp;degree,
             <A HREF="../../../org/axiondb/util/BTree.html">BTree</A>&nbsp;root)
      throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Create or load a node</DL>
<HR>

<A NAME="BTree(java.io.File, java.lang.String, int, org.axiondb.util.BTree, boolean)"><!-- --></A><H3>
BTree</H3>
<PRE>
public <B>BTree</B>(<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/File.html">File</A>&nbsp;idxDir,
             <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/String.html">String</A>&nbsp;idxName,
             int&nbsp;degree,
             <A HREF="../../../org/axiondb/util/BTree.html">BTree</A>&nbsp;root,
             boolean&nbsp;shouldCreate)
      throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Create or load a new node</DL>
<HR>

<A NAME="BTree(java.io.File, java.lang.String, int, int, org.axiondb.util.BTree)"><!-- --></A><H3>
BTree</H3>
<PRE>
public <B>BTree</B>(<A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/File.html">File</A>&nbsp;idxDir,
             <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/String.html">String</A>&nbsp;idxName,
             int&nbsp;degree,
             int&nbsp;fileId,
             <A HREF="../../../org/axiondb/util/BTree.html">BTree</A>&nbsp;root)
      throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Read in an existing node file</DL>

<!-- ============ METHOD DETAIL ========== -->

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<B>Method Detail</B></FONT></TD>
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<A NAME="allocate()"><!-- --></A><H3>
allocate</H3>
<PRE>
public void <B>allocate</B>()</PRE>
<DL>
<DD>Sets the fileId.</DL>
<HR>

<A NAME="loadIdxCtr()"><!-- --></A><H3>
loadIdxCtr</H3>
<PRE>
public void <B>loadIdxCtr</B>()
                throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Loads the counter file if it exists.
 This sets the counter.  Only the root
 should ever call this.</DL>
<HR>

<A NAME="saveIdxCtr()"><!-- --></A><H3>
saveIdxCtr</H3>
<PRE>
public void <B>saveIdxCtr</B>()
                throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Saves out the counter file.  This should only
 ever be called by the root.</DL>
<HR>

<A NAME="getFileById(int)"><!-- --></A><H3>
getFileById</H3>
<PRE>
public <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/File.html">File</A> <B>getFileById</B>(int&nbsp;fileid)</PRE>
<DL>
</DL>
<HR>

<A NAME="getCounterFile()"><!-- --></A><H3>
getCounterFile</H3>
<PRE>
public <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/File.html">File</A> <B>getCounterFile</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="getName()"><!-- --></A><H3>
getName</H3>
<PRE>
public <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/lang/String.html">String</A> <B>getName</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="getKeys()"><!-- --></A><H3>
getKeys</H3>
<PRE>
public org.apache.commons.collections.primitives.IntArrayList <B>getKeys</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="setKeys(org.apache.commons.collections.primitives.IntArrayList)"><!-- --></A><H3>
setKeys</H3>
<PRE>
public void <B>setKeys</B>(org.apache.commons.collections.primitives.IntArrayList&nbsp;keys)</PRE>
<DL>
</DL>
<HR>

<A NAME="getValues()"><!-- --></A><H3>
getValues</H3>
<PRE>
public org.apache.commons.collections.primitives.IntArrayList <B>getValues</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="setValues(org.apache.commons.collections.primitives.IntArrayList)"><!-- --></A><H3>
setValues</H3>
<PRE>
public void <B>setValues</B>(org.apache.commons.collections.primitives.IntArrayList&nbsp;vals)</PRE>
<DL>
</DL>
<HR>

<A NAME="getValue(int)"><!-- --></A><H3>
getValue</H3>
<PRE>
public int <B>getValue</B>(int&nbsp;index)</PRE>
<DL>
</DL>
<HR>

<A NAME="setValue(int, int)"><!-- --></A><H3>
setValue</H3>
<PRE>
public void <B>setValue</B>(int&nbsp;index,
                     int&nbsp;val)</PRE>
<DL>
</DL>
<HR>

<A NAME="getChildIds()"><!-- --></A><H3>
getChildIds</H3>
<PRE>
public org.apache.commons.collections.primitives.IntArrayList <B>getChildIds</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="setChildIds(org.apache.commons.collections.primitives.IntArrayList)"><!-- --></A><H3>
setChildIds</H3>
<PRE>
public void <B>setChildIds</B>(org.apache.commons.collections.primitives.IntArrayList&nbsp;childIds)</PRE>
<DL>
</DL>
<HR>

<A NAME="getLoadedChildren()"><!-- --></A><H3>
getLoadedChildren</H3>
<PRE>
public <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/util/Map.html">Map</A> <B>getLoadedChildren</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="getCounter()"><!-- --></A><H3>
getCounter</H3>
<PRE>
public int <B>getCounter</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="setCounter(int)"><!-- --></A><H3>
setCounter</H3>
<PRE>
public void <B>setCounter</B>(int&nbsp;counter)</PRE>
<DL>
</DL>
<HR>

<A NAME="getFileId()"><!-- --></A><H3>
getFileId</H3>
<PRE>
public int <B>getFileId</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="setFileId(int)"><!-- --></A><H3>
setFileId</H3>
<PRE>
public void <B>setFileId</B>(int&nbsp;fileId)</PRE>
<DL>
</DL>
<HR>

<A NAME="getRoot()"><!-- --></A><H3>
getRoot</H3>
<PRE>
public <A HREF="../../../org/axiondb/util/BTree.html">BTree</A> <B>getRoot</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="isLeaf()"><!-- --></A><H3>
isLeaf</H3>
<PRE>
public boolean <B>isLeaf</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="isRoot()"><!-- --></A><H3>
isRoot</H3>
<PRE>
public boolean <B>isRoot</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
</DL>
<HR>

<A NAME="insert(int, int)"><!-- --></A><H3>
insert</H3>
<PRE>
public void <B>insert</B>(int&nbsp;key,
                   int&nbsp;value)
            throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
</DL>
<HR>

<A NAME="delete(int)"><!-- --></A><H3>
delete</H3>
<PRE>
public void <B>delete</B>(int&nbsp;key)
            throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
</DL>
<HR>

<A NAME="borrowLeft(int)"><!-- --></A><H3>
borrowLeft</H3>
<PRE>
public void <B>borrowLeft</B>(int&nbsp;borrowLoc)
                throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
</DL>
<HR>

<A NAME="borrowRight(int)"><!-- --></A><H3>
borrowRight</H3>
<PRE>
public void <B>borrowRight</B>(int&nbsp;borrowLoc)
                 throws <A HREF="http://java.sun.com/products/jdk/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>