dataGram

Class Datagram

java.lang.Object

dataGram.Datagram

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

CPODDataGram

public class Datagram
extends java.lang.Object
implements java.io.Serializable

A datagram is a set of data which summarises the real data content in quite course bins of about 10 minutes (though this may vary).
Generally, Datagram data look a bit like very course spectrogram data, except that they are designed to show data density as a function of frequency instead of energy density as a function of frequency.
They can be calculated automatically from many types of data and are stored in the binary index files for easy access when mapping data.

Author:

Doug Gillespie

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Datagram(int intervalSeconds)

Method Summary

Methods

Modifier and Type	Method and Description
void	addDataPoint(DatagramDataPoint datagramPoint) Add a data point to a datagram
DatagramDataPoint	getDataPoint(int iDataPoint)
java.util.ArrayList<DatagramDataPoint>	getDataPoints()
int	getIntervalSeconds()
int	getNumDataPoints() Get the number of data points.
OfflineDataMapPoint	getOfflineDataMapPoint()
void	readDatagramData(java.io.DataInputStream dis, int objectLength)
boolean	writeDatagram(java.io.DataOutputStream dos) Write the datagram to an output stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

Datagram

public Datagram(int intervalSeconds)

Parameters:

intervalSeconds -

Method Detail

getIntervalSeconds

public int getIntervalSeconds()

Returns:

the intervalSeconds

getOfflineDataMapPoint

public OfflineDataMapPoint getOfflineDataMapPoint()

Returns:

the offlineDataMapPoint

getDataPoints

public java.util.ArrayList<DatagramDataPoint> getDataPoints()

Returns:

the dataPoints

addDataPoint

public void addDataPoint(DatagramDataPoint datagramPoint)

Add a data point to a datagram

Parameters:

datagramPoint -

getNumDataPoints

public int getNumDataPoints()

Get the number of data points.

Returns:

the number of data points

getDataPoint

public DatagramDataPoint getDataPoint(int iDataPoint)

Parameters:

iDataPoint -

Returns:

a datagram point.

writeDatagram

public boolean writeDatagram(java.io.DataOutputStream dos)

Write the datagram to an output stream.

Parameters:

dos -

Returns:

readDatagramData

public void readDatagramData(java.io.DataInputStream dis,
                    int objectLength)