org.openflow.protocol.factory
Interface OFHelloElementFactory

All Known Implementing Classes:

BasicFactory, FloodlightFactory

public interface OFHelloElementFactory

The interface to factories used for retrieving OFHelloElement instances. All methods are expected to be thread-safe.

Author:

David Erickson (daviderickson@cs.stanford.edu)

Method Summary

OFHelloElement	getHelloElement(OFHelloElementType t) Retrieves an OFHelloElement instance corresponding to the specified OFHelloElementType
java.util.List<OFHelloElement>	parseHelloElements(java.nio.ByteBuffer data, int length) Attempts to parse and return all OFHelloElement contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.
java.util.List<OFHelloElement>	parseHelloElements(java.nio.ByteBuffer data, int length, int limit) Attempts to parse and return all OFHelloElement contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.

Method Detail

getHelloElement

OFHelloElement getHelloElement(OFHelloElementType t)

Retrieves an OFHelloElement instance corresponding to the specified OFHelloElementType

Parameters:

t - the type of the OFHelloElement to be retrieved

Returns:

an OFHelloElement instance

parseHelloElements

java.util.List<OFHelloElement> parseHelloElements(java.nio.ByteBuffer data,
                                                  int length)

Attempts to parse and return all OFHelloElement contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.

Parameters:

data - the ByteBuffer to parse for OpenFlow hellos

length - the number of Bytes to examine for OpenFlow hellos

Returns:

a list of OFHelloElement instances

parseHelloElements

java.util.List<OFHelloElement> parseHelloElements(java.nio.ByteBuffer data,
                                                  int length,
                                                  int limit)

Attempts to parse and return all OFHelloElement contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.

Parameters:

data - the ByteBuffer to parse for OpenFlow hellos

length - the number of Bytes to examine for OpenFlow hellos

limit - the maximum number of messages to return, 0 means no limit

Returns:

a list of OFHelloElement instances