org.tango.jhdb.data

Class HdbDataSet

java.lang.Object

org.tango.jhdb.data.HdbDataSet

public class HdbDataSet
extends Object

Set of HDB Data

Constructor Summary

Constructors

Constructor and Description
HdbDataSet() Construct an empty HdbDataSet
HdbDataSet(ArrayList<HdbData> data) Construct a HdbDataSet with the given HdbData

Method Summary

Methods

Modifier and Type	Method and Description
void	applyConversionFactor(double f) Apply a conversion factor to the data set.
HdbData	get(int idx) Return HdbData at the specified index
HdbData	getBefore(long time) Return the HdbData just before the given time if no data exists before, return the first item, null if the list is empty
long[]	getDataTimeArray() Returns all timestamp of this dataset as an array
HdbData	getLast() Get last data of this data set
String	getName() Get the name of this dataset
int	getType() Get the name of this dataset
double[]	getValueAsDoubleArray() Returns all read value of this dataset as a double array, for scalar and numerical type only.
long[]	getValueAsLongArray() Returns all read value of this dataset as a long array, for scalar and integer type only.
double[]	getWriteValueAsDoubleArray() Returns all write value of this dataset as a double array, for scalar and numerical type only.
long[]	getWriteValueAsLongArray() Returns all write value of this dataset as a long array, for scalar and integer type only.
boolean	isEmpty() Returns true whether this dataset is empty
void	removeFirst() Remove first item
void	removeHasFailed() Remove all HdbData which have failed
void	setInvalidValueForInteger(long invalid) Sets the value returned if a data has failed when calling getDataAsLongIntArray.
void	setName(String name) Set the name of this dataset
void	setType(int type) Set the type of this dataset
int	size() Return size of this HdbDataSet

Methods inherited from class java.lang.Object

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

Constructor Detail

HdbDataSet

public HdbDataSet()

Construct an empty HdbDataSet

HdbDataSet

public HdbDataSet(ArrayList<HdbData> data)

Construct a HdbDataSet with the given HdbData

Method Detail

setType

public void setType(int type)

Set the type of this dataset

Parameters:

type - Type

getType

public int getType()

Get the name of this dataset

Returns:

setName

public void setName(String name)

Set the name of this dataset

Parameters:

name - Name

getName

public String getName()

Get the name of this dataset

Returns:

size

public int size()

Return size of this HdbDataSet

Returns:

applyConversionFactor

public void applyConversionFactor(double f)

Apply a conversion factor to the data set. If the type cannot be converted, nothing happens.

Parameters:

f - Conversion factor

get

public HdbData get(int idx)

Return HdbData at the specified index

Parameters:

idx -

Returns:

getLast

public HdbData getLast()

Get last data of this data set

isEmpty

public boolean isEmpty()

Returns true whether this dataset is empty

removeHasFailed

public void removeHasFailed()

Remove all HdbData which have failed

removeFirst

public void removeFirst()

Remove first item

getBefore

public HdbData getBefore(long time)

Return the HdbData just before the given time if no data exists before, return the first item, null if the list is empty

Parameters:

time - time stamps in us since epoch

getDataTimeArray

public long[] getDataTimeArray()

Returns all timestamp of this dataset as an array

getValueAsDoubleArray

public double[] getValueAsDoubleArray()
                               throws HdbFailed

Returns all read value of this dataset as a double array, for scalar and numerical type only. If a data has failed, Double.NaN is returned.

Throws:

HdbFailed - If the type cannot be converted or is not a scalar type

getWriteValueAsDoubleArray

public double[] getWriteValueAsDoubleArray()
                                    throws HdbFailed

Returns all write value of this dataset as a double array, for scalar and numerical type only. If a data has failed, Double.NaN is returned.

Throws:

HdbFailed - If the type cannot be converted or is not a scalar type

setInvalidValueForInteger

public void setInvalidValueForInteger(long invalid)

Sets the value returned if a data has failed when calling getDataAsLongIntArray. Default is Long.MIN_VALUE.

Parameters:

invalid - Invalid value

getValueAsLongArray

public long[] getValueAsLongArray()
                           throws HdbFailed

Returns all read value of this dataset as a long array, for scalar and integer type only. If a data has failed, INVALID_VAL is returned see #setInvalidValueForInteger.

Throws:

HdbFailed - If the type cannot be converted or is not a scalar type

getWriteValueAsLongArray

public long[] getWriteValueAsLongArray()
                                throws HdbFailed

Returns all write value of this dataset as a long array, for scalar and integer type only. If a data has failed, INVALID_VAL is returned see #setInvalidValueForInteger.

Throws:

HdbFailed - If the type cannot be converted or is not a scalar type