Package org.jboss.netty.buffer

Interface ChannelBufferIndexFinder

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

Method Summary

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 Details

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 Details

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.