org.ka2ddo.opentrac
Class OpenTracNull

java.lang.Object
  org.ka2ddo.opentrac.OpenTracElement
      org.ka2ddo.opentrac.OpenTracNull

All Implemented Interfaces:

java.io.Serializable

public class OpenTracNull
extends OpenTracElement

This class represents an OpenTRAC element where the mere presence of the element is the entire value.

See Also:

OpenTracTypes.OPENTRAC_EMERGENCY, Serialized Form

Field Summary

Fields inherited from class org.ka2ddo.opentrac.OpenTracElement

id

Constructor Summary

OpenTracNull()
Create an uninitialized null OpenTracElement,

OpenTracNull(int type)
Create a OpenTracNull element with the specified field type.

Method Summary

int	computeBody(byte[] buf, int offset) Append this element to a message buffer
boolean	equals(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	toString() Returns a string representation of the object.
java.lang.String	valueString() Get the string representation of the value of this element.

Methods inherited from class org.ka2ddo.opentrac.OpenTracElement

getId

Methods inherited from class java.lang.Object

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

Constructor Detail

OpenTracNull

public OpenTracNull()

Create an uninitialized null OpenTracElement,

OpenTracNull

public OpenTracNull(int type)

Create a OpenTracNull element with the specified field type.

Parameters:

type - OpenTRAC type code

Method Detail

toString

public java.lang.String toString()

Returns a string representation of the object.

Overrides:

toString in class OpenTracElement

Returns:

a string representation of the object.

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

equals

public boolean equals(OpenTracElement other)

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

Specified by:

equals in class OpenTracElement

Parameters:

other - OpenTracElement to compare against this element

Returns:

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