org.vishia.communication

Class InspcDataExchangeAccess.InspcDatagram

java.lang.Object

ByteDataAccessBase

org.vishia.communication.InspcDataExchangeAccess.InspcDatagram

Enclosing class:

InspcDataExchangeAccess

public static final class InspcDataExchangeAccess.InspcDatagram
extends ByteDataAccessBase

Preparing the header of a datagram.

Field Summary

Fields

Modifier and Type	Field and Description
private static int	kanswerNr
private static int	kencryption
private static int	knEntrant
private static int	knrofBytes
private static int	kseqnr
private static int	kspare13
private static int	kspare14
static int	sizeofHead

Constructor Summary

Constructors

Constructor and Description
InspcDatagram()
InspcDatagram(byte[] buffer)

Method Summary

Modifier and Type	Method and Description
void	assignDatagram(byte[] data, int length) Assigns a datagram.
int	getAnswerNr() Gets the number of the answer datagram.
int	getEncryption()
int	getEntrant()
int	getLengthDatagram()
int	getSeqnr()
void	incrAnswerNr() Increments the number for the answer datagram.
boolean	lastAnswer() Gets the information about the last answer datagram.
void	markAnswerNrLast() Mark the datagram as last answer.
void	setEntrant(int nr)
void	setHeadAnswer(int entrant, int seqNr, int encryption) Sets the head for an answer telegram.
void	setHeadRequest(int entrant, int seqNr, int encryption) Sets the head for an request telegram.
void	setLengthDatagram(int length)
void	setSeqnr(int nr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

knrofBytes

private static final int knrofBytes

See Also:

Constant Field Values

knEntrant

private static final int knEntrant

See Also:

Constant Field Values

kencryption

private static final int kencryption

See Also:

Constant Field Values

kseqnr

private static final int kseqnr

See Also:

Constant Field Values

kanswerNr

private static final int kanswerNr

See Also:

Constant Field Values

kspare13

private static final int kspare13

See Also:

Constant Field Values

kspare14

private static final int kspare14

See Also:

Constant Field Values

sizeofHead

public static final int sizeofHead

See Also:

Constant Field Values

Constructor Detail

InspcDatagram

public InspcDatagram(byte[] buffer)

InspcDatagram

public InspcDatagram()

Method Detail

assignDatagram

public final void assignDatagram(byte[] data,
                                 int length)

Assigns a datagram.

Parameters:

data - The data of the datagram.

length - number of received data or buffer length for transmit.

setLengthDatagram

public final void setLengthDatagram(int length)

getLengthDatagram

public final int getLengthDatagram()

setHeadRequest

public final void setHeadRequest(int entrant,
                                 int seqNr,
                                 int encryption)

Sets the head for an request telegram. Sets the answer number to 0. Therefore it is for the first answer. All following answers uses incrAnswerNr() and markAnswerNrLast() to change the answer nr.

Parameters:

entrant -

seqNr -

encryption -

setHeadAnswer

public final void setHeadAnswer(int entrant,
                                int seqNr,
                                int encryption)

Sets the head for an answer telegram. Sets the answer number initially to 1.

Parameters:

entrant -

seqNr -

encryption -

setEntrant

public final void setEntrant(int nr)

getEntrant

public final int getEntrant()

getEncryption

public final int getEncryption()

setSeqnr

public final void setSeqnr(int nr)

getSeqnr

public final int getSeqnr()

markAnswerNrLast

public final void markAnswerNrLast()

Mark the datagram as last answer.

incrAnswerNr

public final void incrAnswerNr()

Increments the number for the answer datagram.

getAnswerNr

public final int getAnswerNr()

Gets the number of the answer datagram. The last datagramm is mask with the bit

lastAnswer

public final boolean lastAnswer()

Gets the information about the last answer datagram.