```
public interface ChannelBufferIndexFinder
```
Locates an index of data in a ChannelBuffer.
This interface enables the sequential search for the data which meets more complex and dynamic condition than just a simple value matching. Please refer to ChannelBuffer.indexOf(int, int, ChannelBufferIndexFinder) and ChannelBuffer.bytesBefore(int, int, ChannelBufferIndexFinder) for more explanation.

Field Summary

Fields
Modifier and Type	Field	Description
`static ChannelBufferIndexFinder`	`CR`	Index finder which locates a `CR ('\r')` byte.
`static ChannelBufferIndexFinder`	`CRLF`	Index finder which locates a `CR ('\r')` or `LF ('\n')`.
`static ChannelBufferIndexFinder`	`LF`	Index finder which locates a `LF ('\n')` byte.
`static ChannelBufferIndexFinder`	`LINEAR_WHITESPACE`	Index finder which locates a linear whitespace (`' '` and `'\t'`).
`static ChannelBufferIndexFinder`	`NOT_CR`	Index finder which locates a non-`CR ('\r')` byte.
`static ChannelBufferIndexFinder`	`NOT_CRLF`	Index finder which locates a byte which is neither a `CR ('\r')` nor a `LF ('\n')`.
`static ChannelBufferIndexFinder`	`NOT_LF`	Index finder which locates a non-`LF ('\n')` byte.
`static ChannelBufferIndexFinder`	`NOT_LINEAR_WHITESPACE`	Index finder which locates a byte which is not a linear whitespace (neither `' '` nor `'\t'`).
`static ChannelBufferIndexFinder`	`NOT_NUL`	Index finder which locates a non-`NUL (0x00)` byte.
`static ChannelBufferIndexFinder`	`NUL`	Index finder which locates a `NUL (0x00)` byte.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`find(ChannelBuffer buffer, int guessedIndex)`	Returns `true` if and only if the data is found at the specified `guessedIndex` of the specified `buffer`.

- Field Detail
  - NUL
```
static final ChannelBufferIndexFinder NUL
```
    Index finder which locates a NUL (0x00) byte.
  - NOT_NUL
```
static final ChannelBufferIndexFinder NOT_NUL
```
    Index finder which locates a non-NUL (0x00) byte.
  - CR
```
static final ChannelBufferIndexFinder CR
```
    Index finder which locates a CR ('\r') byte.
  - NOT_CR
```
static final ChannelBufferIndexFinder NOT_CR
```
    Index finder which locates a non-CR ('\r') byte.
  - LF
```
static final ChannelBufferIndexFinder LF
```
    Index finder which locates a LF ('\n') byte.
  - NOT_LF
```
static final ChannelBufferIndexFinder NOT_LF
```
    Index finder which locates a non-LF ('\n') byte.
  - CRLF
```
static final ChannelBufferIndexFinder CRLF
```
    Index finder which locates a CR ('\r') or LF ('\n').
  - NOT_CRLF
```
static final ChannelBufferIndexFinder NOT_CRLF
```
    Index finder which locates a byte which is neither a CR ('\r') nor a LF ('\n').
  - LINEAR_WHITESPACE
```
static final ChannelBufferIndexFinder LINEAR_WHITESPACE
```
    Index finder which locates a linear whitespace (' ' and '\t').
  - NOT_LINEAR_WHITESPACE
```
static final ChannelBufferIndexFinder NOT_LINEAR_WHITESPACE
```
    Index finder which locates a byte which is not a linear whitespace (neither ' ' nor '\t').
- Method Detail
  - find
```
boolean find(ChannelBuffer buffer,
             int guessedIndex)
```
    Returns true if and only if the data is found at the specified guessedIndex of the specified buffer.
    The implementation should not perform an operation which raises an exception such as IndexOutOfBoundsException nor perform an operation which modifies the content of the buffer.

Interface ChannelBufferIndexFinder

Field Summary

Method Summary

Field Detail

NUL

NOT_NUL

CR

NOT_CR

LF

NOT_LF

CRLF

NOT_CRLF

LINEAR_WHITESPACE

NOT_LINEAR_WHITESPACE

Method Detail

find