org.exist.storage.btree
Class BTree.BTreeFileHeader

java.lang.Object
  org.exist.storage.btree.Paged.FileHeader
      org.exist.storage.btree.BTree.BTreeFileHeader

Enclosing class:

BTree

protected class BTree.BTreeFileHeader

extends Paged.FileHeader

Constructor Summary

BTree.BTreeFileHeader()

BTree.BTreeFileHeader(boolean read)

BTree.BTreeFileHeader(int pageSize)

BTree.BTreeFileHeader(long pageCount)

BTree.BTreeFileHeader(long pageCount, int pageSize)

BTree.BTreeFileHeader(long pageCount, int pageSize, byte blockSize)

Method Summary

short	getFixedKeyLen()
long	getRootPage() The root page of the storage tree
int	read(byte[] buf)
void	setFixedKeyLen(short keyLen)
void	setRootPage(long rootPage) The root page of the storage tree
int	write(byte[] buf)

Methods inherited from class org.exist.storage.btree.Paged.FileHeader

decRecordCount, getFirstFreePage, getHeaderSize, getLastFreePage, getMaxKeySize, getPageCount, getPageHeaderSize, getPageSize, getRecordCount, getTotalCount, getVersion, getWorkSize, incRecordCount, isDirty, read, setDirty, setFirstFreePage, setHeaderSize, setLastFreePage, setMaxKeySize, setPageCount, setPageHeaderSize, setPageSize, setRecordCount, setTotalCount, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BTree.BTreeFileHeader

public BTree.BTreeFileHeader()

BTree.BTreeFileHeader

public BTree.BTreeFileHeader(long pageCount)

BTree.BTreeFileHeader

public BTree.BTreeFileHeader(long pageCount,
                             int pageSize)

BTree.BTreeFileHeader

public BTree.BTreeFileHeader(long pageCount,
                             int pageSize,
                             byte blockSize)

BTree.BTreeFileHeader

public BTree.BTreeFileHeader(int pageSize)

BTree.BTreeFileHeader

public BTree.BTreeFileHeader(boolean read)
                      throws java.io.IOException

Method Detail

read

public int read(byte[] buf)
         throws java.io.IOException

Overrides:

read in class Paged.FileHeader

Throws:

java.io.IOException

write

public int write(byte[] buf)
          throws java.io.IOException

Overrides:

write in class Paged.FileHeader

Throws:

java.io.IOException

setRootPage

public final void setRootPage(long rootPage)

The root page of the storage tree

Parameters:

rootPage - The new rootPage value

getRootPage

public final long getRootPage()

The root page of the storage tree

Returns:

The rootPage value

getFixedKeyLen

public short getFixedKeyLen()

setFixedKeyLen

public void setFixedKeyLen(short keyLen)