org.ka2ddo.opentrac

Class OpenTracTimestamp

java.lang.Object

org.ka2ddo.opentrac.OpenTracElement

org.ka2ddo.opentrac.OpenTracTimestamp

All Implemented Interfaces:

java.io.Serializable

public class OpenTracTimestamp
extends OpenTracElement

An OpenTRAC element that represents the current time at an entity in Java milliseconds since 1 Jan 1970 UTC.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
long	timestamp Timestamp value in milliseconds since 1 Jan 1970 UTC (the Unix epoch),

Fields inherited from class org.ka2ddo.opentrac.OpenTracElement

id

Constructor Summary

Constructors

Constructor and Description
OpenTracTimestamp() Create an OpenTracTimestamp element for the current time.
OpenTracTimestamp(int type, byte[] body, int offset, int length) Create an OpenTRAC element with a 4-byte timestamp value from the next series of bytes in an encoded OpenTRAC message.

Method Summary

Modifier and Type	Method and Description
int	computeBody(byte[] buf, int offset) Append this element to a message buffer
boolean	equalsElement(OpenTracElement other) Test if this OpenTracElement has the same type and value as another OpenTracElement.
int	length() Return the number of bytes needed to encode this element.
java.lang.String	valueString() Get the string representation of the value of this element.

Methods inherited from class org.ka2ddo.opentrac.OpenTracElement

getId, toString

Methods inherited from class java.lang.Object

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

Field Detail

timestamp

public long timestamp

Timestamp value in milliseconds since 1 Jan 1970 UTC (the Unix epoch),

Constructor Detail

OpenTracTimestamp

public OpenTracTimestamp()

Create an OpenTracTimestamp element for the current time.

OpenTracTimestamp

public OpenTracTimestamp(int type,
                         byte[] body,
                         int offset,
                         int length)

Create an OpenTRAC element with a 4-byte timestamp value from the next series of bytes in an encoded OpenTRAC message.

Parameters:

type - OpenTRAC element type code

body - byte array containing the encoded OpenTRAC elements

offset - starting index in the array where this element begins

length - remaining number of bytes in the OpenTRAC encoded message

Method Detail

valueString

public java.lang.String valueString()

Get the string representation of the value of this element.

Specified by:

valueString in class OpenTracElement

Returns:

value string

computeBody

public int computeBody(byte[] buf,
                       int offset)

Append this element to a message buffer

Specified by:

computeBody in class OpenTracElement

Parameters:

buf - byte array to add the element to

offset - starting index to store the element

Returns:

index after the end of the stored element

length

public int length()

Return the number of bytes needed to encode this element.

Specified by:

length in class OpenTracElement

Returns:

byte count needed to hold this element

equalsElement

public boolean equalsElement(OpenTracElement other)

Test if this OpenTracElement has the same type and value as another OpenTracElement.

Specified by:

equalsElement in class OpenTracElement

Parameters:

other - OpenTracElement to compare against this element

Returns:

boolean true if elements are of the same type, class, and value