Node4 (RoaringBitmap 0.9.27-bitlap API)

java.lang.Object
- org.bitlap.roaringbitmap.art.Node
- - org.bitlap.roaringbitmap.art.Node4

```
public class Node4
extends Node
```

字段概要
- 从类继承的字段 org.bitlap.roaringbitmap.art.Node
  count, ILLEGAL_IDX, nodeType, prefix, prefixLength

构造器概要

构造器
构造器和说明

Node4(int compressedPrefixSize)

构造器
构造器和说明
`Node4(int compressedPrefixSize)`

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`void`	`deserializeNodeBody(java.nio.ByteBuffer byteBuffer)` deserialize the node's body content
`void`	`deserializeNodeBody(java.io.DataInput dataInput)` deserialize the node's body content
`Node`	`getChild(int pos)` get the child at the specified position in the node, the 'pos' range from 0 to count
`byte`	`getChildKey(int pos)` get the corresponding key byte of the requested position
`int`	`getChildPos(byte k)` get the position of a child corresponding to the input key 'k'
`int`	`getMaxPos()` get the max child's position
`int`	`getMinPos()` get the position of the min element in current node.
`org.bitlap.roaringbitmap.art.SearchResult`	`getNearestChildPos(byte k)` get the position of a child corresponding to the input key 'k' if present if 'k' is not in the child, return the positions of the neighbouring nodes instead
`int`	`getNextLargerPos(int pos)` get the next position in the node
`int`	`getNextSmallerPos(int pos)` get the next smaller element's position
`static Node`	`insert(Node node, Node childNode, byte key)` insert the child node into the node4 with the key byte
`Node`	`remove(int pos)` remove the specified position child
`void`	`replaceChildren(Node[] children)` replace the node's children according to the given children parameter while doing the deserialization phase.
`void`	`replaceNode(int pos, Node freshOne)` replace the position child to the fresh one
`void`	`serializeNodeBody(java.nio.ByteBuffer byteBuffer)` serialize the node's body content
`void`	`serializeNodeBody(java.io.DataOutput dataOutput)` serialize the node's body content
`int`	`serializeNodeBodySizeInBytes()` the serialized size except the common node header part

从类继承的方法 org.bitlap.roaringbitmap.art.Node
binarySearch, copyPrefix, deserialize, deserialize, insertLeaf, serialize, serialize, serializeSizeInBytes

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - Node4
```
public Node4(int compressedPrefixSize)
```
- 方法详细资料
  - getChildPos
```
public int getChildPos(byte k)
```
    从类复制的说明: Node
    
    get the position of a child corresponding to the input key 'k'
    
    指定者:
    
    getChildPos 在类中 Node
    
    参数:
    
    k - a key value of the byte range
    
    返回:
    
    the child position corresponding to the key 'k'
  - getNearestChildPos
```
public org.bitlap.roaringbitmap.art.SearchResult getNearestChildPos(byte k)
```
    从类复制的说明: Node
    
    get the position of a child corresponding to the input key 'k' if present if 'k' is not in the child, return the positions of the neighbouring nodes instead
    
    指定者:
    
    getNearestChildPos 在类中 Node
    
    参数:
    
    k - a key value of the byte range
    
    返回:
    
    a result indicating whether or not the key was found and the positions of the child corresponding to it or its neighbours
  - getChildKey
```
public byte getChildKey(int pos)
```
    从类复制的说明: Node
    
    get the corresponding key byte of the requested position
    
    指定者:
    
    getChildKey 在类中 Node
    
    参数:
    
    pos - the position
    
    返回:
    
    the corresponding key byte
  - getChild
```
public Node getChild(int pos)
```
    从类复制的说明: Node
    
    get the child at the specified position in the node, the 'pos' range from 0 to count
    
    指定者:
    
    getChild 在类中 Node
    
    参数:
    
    pos - the position
    
    返回:
    
    a Node corresponding to the input position
  - replaceNode
```
public void replaceNode(int pos,
                        Node freshOne)
```
    从类复制的说明: Node
    
    replace the position child to the fresh one
    
    指定者:
    
    replaceNode 在类中 Node
    
    参数:
    
    pos - the position
    
    freshOne - the fresh node to replace the old one
  - getMinPos
```
public int getMinPos()
```
    从类复制的说明: Node
    
    get the position of the min element in current node.
    
    指定者:
    
    getMinPos 在类中 Node
    
    返回:
    
    the minimum key's position
  - getNextLargerPos
```
public int getNextLargerPos(int pos)
```
    从类复制的说明: Node
    
    get the next position in the node
    
    指定者:
    
    getNextLargerPos 在类中 Node
    
    参数:
    
    pos - current position,-1 to start from the min one
    
    返回:
    
    the next larger byte key's position which is close to 'pos' position,-1 for end
  - getMaxPos
```
public int getMaxPos()
```
    从类复制的说明: Node
    
    get the max child's position
    
    指定者:
    
    getMaxPos 在类中 Node
    
    返回:
    
    the max byte key's position
  - getNextSmallerPos
```
public int getNextSmallerPos(int pos)
```
    从类复制的说明: Node
    
    get the next smaller element's position
    
    指定者:
    
    getNextSmallerPos 在类中 Node
    
    参数:
    
    pos - the position,-1 to start from the largest one
    
    返回:
    
    the next smaller key's position which is close to input 'pos' position,-1 for end
  - insert
```
public static Node insert(Node node,
                          Node childNode,
                          byte key)
```
    insert the child node into the node4 with the key byte
    
    参数:
    
    node - the node4 to insert into
    
    childNode - the child node
    
    key - the key byte
    
    返回:
    
    the input node4 or an adaptive generated node16
  - remove
```
public Node remove(int pos)
```
    从类复制的说明: Node
    
    remove the specified position child
    
    指定者:
    
    remove 在类中 Node
    
    参数:
    
    pos - the position to remove
    
    返回:
    
    an adaptive changed fresh node of the current node
  - serializeNodeBody
```
public void serializeNodeBody(java.io.DataOutput dataOutput)
                       throws java.io.IOException
```
    从类复制的说明: Node
    
    serialize the node's body content
    
    参数:
    
    dataOutput - the DataOutput
    
    抛出:
    
    java.io.IOException - exception indicates serialization errors
  - serializeNodeBody
```
public void serializeNodeBody(java.nio.ByteBuffer byteBuffer)
                       throws java.io.IOException
```
    serialize the node's body content
    
    参数:
    
    byteBuffer - the ByteBuffer
    
    抛出:
    
    java.io.IOException - exception indicates serialization errors
  - deserializeNodeBody
```
public void deserializeNodeBody(java.io.DataInput dataInput)
                         throws java.io.IOException
```
    从类复制的说明: Node
    
    deserialize the node's body content
    
    参数:
    
    dataInput - the DataInput
    
    抛出:
    
    java.io.IOException - exception indicates deserialization errors
  - deserializeNodeBody
```
public void deserializeNodeBody(java.nio.ByteBuffer byteBuffer)
                         throws java.io.IOException
```
    deserialize the node's body content
    
    参数:
    
    byteBuffer - the ByteBuffer
    
    抛出:
    
    java.io.IOException - exception indicates deserialization errors
  - serializeNodeBodySizeInBytes
```
public int serializeNodeBodySizeInBytes()
```
    从类复制的说明: Node
    
    the serialized size except the common node header part
    
    指定者:
    
    serializeNodeBodySizeInBytes 在类中 Node
    
    返回:
    
    the size in bytes
  - replaceChildren
```
public void replaceChildren(Node[] children)
```
    从类复制的说明: Node
    
    replace the node's children according to the given children parameter while doing the deserialization phase.
    
    参数:
    
    children - all the not null children nodes in key byte ascending order,no null element

类 Node4

字段概要

从类继承的字段 org.bitlap.roaringbitmap.art.Node

构造器概要

方法概要

从类继承的方法 org.bitlap.roaringbitmap.art.Node

从类继承的方法 java.lang.Object

构造器详细资料

Node4

方法详细资料

getChildPos

getNearestChildPos

getChildKey

getChild

replaceNode

getMinPos

getNextLargerPos

getMaxPos

getNextSmallerPos

insert

remove

serializeNodeBody

serializeNodeBody

deserializeNodeBody

deserializeNodeBody

serializeNodeBodySizeInBytes

replaceChildren