Java Doc for TimeStampHeader.java in  » 6.0-JDK-Modules » Java-Advanced-Imaging » javax » sip » header » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » javax.sip.header 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


javax.sip.header.TimeStampHeader

TimeStampHeader
public interface TimeStampHeader extends Header(Code)
The Timestamp header field describes when the UAC sent the request to the UAS. When a 100 (Trying) response is generated, any Timestamp header field present in the request MUST be copied into this 100 (Trying) response. If there is a delay in generating the response, the UAS SHOULD add a delay value into the Timestamp value in the response. This value MUST contain the difference between the time of sending of the response and receipt of the request, measured in seconds. Although there is no normative behavior defined here that makes use of the header, it allows for extensions or SIP applications to obtain RTT estimates, that may be used to adjust the timeout value for retransmissions.

For Example:
Timestamp: 54
author:
   BEA Systems, NIST
version:
   1.2



Field Summary
final public static  StringNAME
    


Method Summary
public  floatgetDelay()
     Gets delay of TimeStampHeader.
public  longgetTime()
     Gets the timestamp value of this TimeStampHeader.
public  intgetTimeDelay()
     Gets delay of TimeStampHeader.
public  floatgetTimeStamp()
     Gets the timestamp value of this TimeStampHeader.
public  voidsetDelay(float delay)
    
public  voidsetTime(long timeStamp)
     Sets the timestamp value of this TimeStampHeader to the new timestamp value passed to this method.
public  voidsetTimeDelay(int delay)
    
public  voidsetTimeStamp(float timeStamp)
     Sets the timestamp value of this TimeStampHeader to the new timestamp value passed to this method.

Field Detail
NAME
final public static String NAME(Code)
Name of TimeStampHeader





Method Detail
getDelay
public float getDelay()(Code)
Gets delay of TimeStampHeader. This method returns -1 if the delay parameter is not set. the delay value of this TimeStampHeaderTimeStampHeader.getTimeDelay()



getTime
public long getTime()(Code)
Gets the timestamp value of this TimeStampHeader.
since:
   v1.2 the timestamp value of this TimeStampHeader



getTimeDelay
public int getTimeDelay()(Code)
Gets delay of TimeStampHeader. This method returns -1 if the delay parameter is not set.
since:
   v1.2 the delay value of this TimeStampHeader as an integer.



getTimeStamp
public float getTimeStamp()(Code)
Gets the timestamp value of this TimeStampHeader. the timestamp value of this TimeStampHeaderTimeStampHeader.getTime()



setDelay
public void setDelay(float delay) throws InvalidArgumentException(Code)
Sets the new delay value of the TimestampHeader to the delay parameter passed to this method
Parameters:
  delay - - the new float delay value
throws:
  InvalidArgumentException - if the delay value argumenmt is anegative value other than the default value -1.TimeStampHeader.setTimeDelay(int)



setTime
public void setTime(long timeStamp) throws InvalidArgumentException(Code)
Sets the timestamp value of this TimeStampHeader to the new timestamp value passed to this method. This method allows applications to conveniantly use System.currentTimeMillis to set the timeStamp value.
since:
   v1.2
Parameters:
  timeStamp - - the new long timestamp value
throws:
  InvalidArgumentException - if the timestamp value argument is anegative value.



setTimeDelay
public void setTimeDelay(int delay) throws InvalidArgumentException(Code)
Sets the new delay value of the TimestampHeader to the delay parameter passed to this method
since:
   v1.2
Parameters:
  delay - - the new int delay value
throws:
  InvalidArgumentException - if the delay value argumenmt is anegative value other than the default value -1.



setTimeStamp
public void setTimeStamp(float timeStamp) throws InvalidArgumentException(Code)
Sets the timestamp value of this TimeStampHeader to the new timestamp value passed to this method.
Parameters:
  timeStamp - - the new float timestamp value
throws:
  InvalidArgumentException - if the timestamp value argument is anegative value.TimeStampHeader.setTimeStamp(float)



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