Module swim.db

Package swim.db

Class UTreePage

java.lang.Object

swim.db.Page

swim.db.UTreePage

Direct Known Subclasses:

UTreeLeaf

public abstract class UTreePage
extends Page

Method Summary

Modifier and Type	Method	Description
abstract UTreePage	committed(int zone, long base, long version)
abstract Cursor<Value>	cursor()
static UTreePage	empty(PageContext context, int stem, long version)
abstract UTreePage	evacuated(int post, long version)
static UTreePage	fromValue(UTreePageRef pageRef, Value value)
abstract Value	get()
abstract UTreePage	getChild(int index)
abstract UTreePageRef	getChildRef(int index)
boolean	isUTreePage()
abstract UTreePage	loadTree(PageLoader pageLoader)
abstract UTreePageRef	pageRef()
abstract UTreePage	uncommitted(long version)
abstract UTreePage	updated(Value newValue, long newVersion)

Methods inherited from class swim.db.Page

arity, base, buildDiff, childCount, diffSize, fold, isBTreePage, isEmpty, isLeaf, isNode, isQTreePage, isSTreePage, pageContext, pageSize, pageType, post, printTree, soften, span, stem, toDebugString, toHeader, toValue, treeSize, version, writeDiff, writePage, zone

Methods inherited from class java.lang.Object

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

Method Detail

isUTreePage

public boolean isUTreePage()

Overrides:

isUTreePage in class Page

pageRef

public abstract UTreePageRef pageRef()

Specified by:

pageRef in class Page

getChildRef

public abstract UTreePageRef getChildRef(int index)

Specified by:

getChildRef in class Page

getChild

public abstract UTreePage getChild(int index)

Specified by:

getChild in class Page

get

public abstract Value get()

updated

public abstract UTreePage updated(Value newValue,
                                  long newVersion)

evacuated

public abstract UTreePage evacuated(int post,
                                    long version)

Specified by:

evacuated in class Page

committed

public abstract UTreePage committed(int zone,
                                    long base,
                                    long version)

Specified by:

committed in class Page

uncommitted

public abstract UTreePage uncommitted(long version)

Specified by:

uncommitted in class Page

loadTree

public abstract UTreePage loadTree(PageLoader pageLoader)

Specified by:

loadTree in class Page

cursor

public abstract Cursor<Value> cursor()

Specified by:

cursor in class Page

empty

public static UTreePage empty(PageContext context,
                              int stem,
                              long version)

fromValue

public static UTreePage fromValue(UTreePageRef pageRef,
                                  Value value)