jdbm.recman
Class DataPage

java.lang.Object
  jdbm.recman.PageHeader
      jdbm.recman.DataPage

All Implemented Interfaces:

BlockView

final class DataPage
extends PageHeader

Class describing a page that holds data.

Field Summary

(package private) static short	DATA_PER_PAGE
(package private) static short	O_DATA

Fields inherited from class jdbm.recman.PageHeader

block, SIZE

Constructor Summary

DataPage(BlockIo block)
Constructs a data page view from the indicated block.

Method Summary

(package private) static DataPage	getDataPageView(BlockIo block) Factory method to create or return a data page for the indicated block.
(package private) short	getFirst() Returns the first rowid's offset
(package private) void	setFirst(short value) Sets the first rowid's offset

Methods inherited from class jdbm.recman.PageHeader

getMagic, getNext, getPrev, getView, paranoiaMagicOk, setNext, setPrev, setType

Methods inherited from class java.lang.Object

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

Field Detail

O_DATA

static final short O_DATA

See Also:

Constant Field Values

DATA_PER_PAGE

static final short DATA_PER_PAGE

See Also:

Constant Field Values

Constructor Detail

DataPage

DataPage(BlockIo block)

Constructs a data page view from the indicated block.

Method Detail

getDataPageView

static DataPage getDataPageView(BlockIo block)

Factory method to create or return a data page for the indicated block.

getFirst

short getFirst()

Returns the first rowid's offset

setFirst

void setFirst(short value)

Sets the first rowid's offset