ColumnNodeWriter (Apache HBase 1.1.7 API)

```
@InterfaceAudience.Private
public class ColumnNodeWriter
extends Object
```
Column nodes can be either family nodes or qualifier nodes, as both sections encode similarly. The family and qualifier sections of the data block are made of 1 or more of these nodes.
Each node is composed of 3 sections:
tokenLength: UVInt (normally 1 byte) indicating the number of token bytes
token[]: the actual token bytes
parentStartPosition: the offset of the next node from the start of the family or qualifier section

Fields
Modifier and Type	Field and Description
`protected PrefixTreeBlockMeta`	`blockMeta`
`protected TokenizerNode`	`builderNode` fields
`protected ColumnNodeType`	`nodeType`
`protected int`	`parentStartPosition`
`protected byte[]`	`token`
`protected int`	`tokenLength`

Constructors
Constructor and Description
`ColumnNodeWriter(PrefixTreeBlockMeta blockMeta, TokenizerNode builderNode, ColumnNodeType nodeType)` construct

Methods
Modifier and Type	Method and Description
`int`	`getWidthUsingPlaceholderForOffsetWidth(int offsetWidthPlaceholder)` This method is called before blockMeta.qualifierOffsetWidth is known, so we pass in a placeholder.
`boolean`	`isRoot()` methods
`void`	`setParentStartPosition(int parentStartPosition)` get/set
`void`	`setTokenBytes(ByteRange source)`
`String`	`toString()` standard methods
`void`	`writeBytes(OutputStream os)`

protected PrefixTreeBlockMeta blockMeta

public ColumnNodeWriter(PrefixTreeBlockMeta blockMeta,
                TokenizerNode builderNode,
                ColumnNodeType nodeType)

construct

Class ColumnNodeWriter