Direct Known Subclasses:

BTreePage, QTreePage, STreePage, UTreePage
```
public abstract class Page
extends Object
```

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract int`	`arity()`
`long`	`base()`
`abstract void`	`buildDiff(Builder<Page,?> builder)`
`abstract int`	`childCount()`
`abstract Page`	`committed(int zone, long base, long version)`
`abstract Cursor<? extends Object>`	`cursor()`
`int`	`diffSize()`
`abstract Page`	`evacuated(int zone, long version)`
`Value`	`fold()`
`abstract Page`	`getChild(int index)`
`abstract PageRef`	`getChildRef(int index)`
`boolean`	`isBTreePage()`
`abstract boolean`	`isEmpty()`
`boolean`	`isLeaf()`
`boolean`	`isNode()`
`boolean`	`isQTreePage()`
`boolean`	`isSTreePage()`
`boolean`	`isUTreePage()`
`abstract Page`	`loadTree(PageLoader pageLoader)`
`PageContext`	`pageContext()`
`abstract PageRef`	`pageRef()`
`int`	`pageSize()`
`abstract PageType`	`pageType()`
`int`	`post()`
`void`	`printTree()`
`abstract void`	`soften(long version)`
`long`	`span()`
`int`	`stem()`
`String`	`toDebugString()`
`abstract Value`	`toHeader()`
`abstract Value`	`toValue()`
`long`	`treeSize()`
`abstract Page`	`uncommitted(long version)`
`abstract long`	`version()`
`abstract void`	`writeDiff(Output<?> output)`
`abstract void`	`writePage(Output<?> output)`
`int`	`zone()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isBTreePage
```
public boolean isBTreePage()
```

isQTreePage
```
public boolean isQTreePage()
```

isSTreePage
```
public boolean isSTreePage()
```

isUTreePage
```
public boolean isUTreePage()
```

isNode
```
public boolean isNode()
```

isLeaf
```
public boolean isLeaf()
```

pageRef
```
public abstract PageRef pageRef()
```

pageContext
```
public PageContext pageContext()
```

pageType
```
public abstract PageType pageType()
```

version
```
public abstract long version()
```

stem
```
public int stem()
```

post
```
public int post()
```

zone
```
public int zone()
```

base
```
public long base()
```

span
```
public long span()
```

fold
```
public Value fold()
```

isEmpty
```
public abstract boolean isEmpty()
```

arity
```
public abstract int arity()
```

childCount
```
public abstract int childCount()
```

getChildRef

public abstract PageRef getChildRef(int index)

getChild

public abstract Page getChild(int index)

pageSize
```
public int pageSize()
```

diffSize
```
public int diffSize()
```

treeSize
```
public long treeSize()
```

toHeader
```
public abstract Value toHeader()
```

toValue
```
public abstract Value toValue()
```

evacuated

public abstract Page evacuated(int zone,
                               long version)

committed

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

uncommitted

public abstract Page uncommitted(long version)

writePage

public abstract void writePage(Output<?> output)

writeDiff

public abstract void writeDiff(Output<?> output)

buildDiff

public abstract void buildDiff(Builder<Page,?> builder)

loadTree

public abstract Page loadTree(PageLoader pageLoader)

soften

public abstract void soften(long version)

cursor

public abstract Cursor<? extends Object> cursor()

printTree
```
public void printTree()
```

toDebugString
```
public String toDebugString()
```

Class Page

Method Summary

Methods inherited from class java.lang.Object

Method Detail

isBTreePage

isQTreePage

isSTreePage

isUTreePage

isNode

isLeaf

pageRef

pageContext

pageType

version

stem

post

zone

base

span

fold

isEmpty

arity

childCount

getChildRef

getChild

pageSize

diffSize

treeSize

toHeader

toValue

evacuated

committed

uncommitted

writePage

writeDiff

buildDiff

loadTree

soften

cursor

printTree

toDebugString