simtools.data
Class LinearSource

java.lang.Object
  simtools.data.ValueProvider
      simtools.data.DataSource
          simtools.data.LinearSource

All Implemented Interfaces:

java.io.Serializable

public class LinearSource
extends DataSource
implements java.io.Serializable

See Also:

Serialized Form

Field Summary

protected double	_coef
protected long	_end
protected double	_org
protected long	_start

Fields inherited from class simtools.data.DataSource

endNotificationListeners, listeners, sortedOrder

Fields inherited from class simtools.data.ValueProvider

ByteProvider, DoubleProvider, FloatProvider, IntegerProvider, kind, LongProvider, ObjectProvider, ShortProvider

Constructor Summary

LinearSource(double min, double max, double step)
This constructor doesn't use the notion of index at all it may be used to produce a uniform distribution of points between min (included) and max, evenly spaced with step.

LinearSource(double org, double coef, long start, long end)

Method Summary

long	computeLastIndex()
java.lang.Object	computeMax()
java.lang.Object	computeMin() Force the computation if possible.
long	computeStartIndex()
double	getDoubleValue(long index) Optimize for double access getValue calls this function and wraps a Double around
DataInfo	getInformation()
long	getLastIndex()
java.lang.Object	getMax()
java.lang.Object	getMin() Return values if possibly only, without expensive computations.
long	getStartIndex()
java.lang.Object	getValue(long index)
void	setSlice(long min, long max) Sets a region of interest in the DataSource.
int	sortedOrder() Check if the values are sorted or not.
void	update()
java.lang.Class	valueClass() Returns the more specialized superclass of all objects returned by this provider.

Methods inherited from class simtools.data.DataSource

addEndNotificationListener, addListener, computeSortedOrder, createEmptyDataSource, equals, getAuxiliarySources, getByteMax, getByteMin, getChoiceFormat, getDataSourceInformationClass, getDoubleMax, getDoubleMin, getFloatMax, getFloatMin, getIntegerMax, getIntegerMin, getLongMax, getLongMin, getShortMax, getShortMin, getSortedOrder, getSourceDependencies, isAuxiliary, isComparable, isCompound, notifyEndNotificationListeners, notifyListenersForDataReplaced, notifyListenersForDataReplaced, notifyListenersForIndexRangeChange, notifyListenersForInfoChange, notifyListenersForOrderChange, notifyListenersForValueChange, notifyListenersForValueRangeChange, removeEndNotificationListener, removeListener, updateSortedOrder

Methods inherited from class simtools.data.ValueProvider

getByteValue, getFloatValue, getIntegerValue, getKind, getLongValue, getObjectValue, getShortValue

Methods inherited from class java.lang.Object

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

Field Detail

_org

protected double _org

_coef

protected double _coef

_start

protected long _start

_end

protected long _end

Constructor Detail

LinearSource

public LinearSource(double org,
                    double coef,
                    long start,
                    long end)

LinearSource

public LinearSource(double min,
                    double max,
                    double step)

This constructor doesn't use the notion of index at all it may be used to produce a uniform distribution of points between min (included) and max, evenly spaced with step. The last point is <=max. This is especially useful for making plots. The first point, at min, has index 0.

Method Detail

getInformation

public DataInfo getInformation()

Overrides:

getInformation in class DataSource

getMin

public java.lang.Object getMin()
                        throws UnsupportedOperation

Description copied from class: DataSource

Return values if possibly only, without expensive computations.

Overrides:

getMin in class DataSource

Throws:

UnsupportedOperation

getMax

public java.lang.Object getMax()
                        throws UnsupportedOperation

Overrides:

getMax in class DataSource

Throws:

UnsupportedOperation

getStartIndex

public long getStartIndex()
                   throws UnsupportedOperation

Overrides:

getStartIndex in class DataSource

Throws:

UnsupportedOperation

getLastIndex

public long getLastIndex()
                  throws UnsupportedOperation

Overrides:

getLastIndex in class DataSource

Throws:

UnsupportedOperation

computeMin

public java.lang.Object computeMin()
                            throws UnsupportedOperation

Force the computation if possible. The operation may take some time.

Overrides:

computeMin in class DataSource

Throws:

UnsupportedOperation

computeMax

public java.lang.Object computeMax()
                            throws UnsupportedOperation

Overrides:

computeMax in class DataSource

Throws:

UnsupportedOperation

computeStartIndex

public long computeStartIndex()
                       throws UnsupportedOperation

Overrides:

computeStartIndex in class DataSource

Throws:

UnsupportedOperation

computeLastIndex

public long computeLastIndex()
                      throws UnsupportedOperation

Overrides:

computeLastIndex in class DataSource

Throws:

UnsupportedOperation

setSlice

public void setSlice(long min,
                     long max)

Description copied from class: DataSource

Sets a region of interest in the DataSource. This is a purely informative function, but the DataSource may use this information to optimize itself on this specific range.

Overrides:

setSlice in class DataSource

getDoubleValue

public double getDoubleValue(long index)

Optimize for double access getValue calls this function and wraps a Double around

Overrides:

getDoubleValue in class ValueProvider

getValue

public java.lang.Object getValue(long index)
                          throws DataException

Specified by:

getValue in class ValueProvider

Throws:

DataException

valueClass

public java.lang.Class valueClass()

Description copied from class: ValueProvider

Returns the more specialized superclass of all objects returned by this provider. Returns Object by default in the base implementation, subclass should specialize if possible.

Overrides:

valueClass in class ValueProvider

sortedOrder

public int sortedOrder()

Description copied from class: DataSource

Check if the values are sorted or not. This is usefull to optimize some computations (curves drawing for instance)

Overrides:

sortedOrder in class DataSource

Returns:

0 if the values are not sorted, 1 if the values are sorted in ascending order and -1 if the values are sorted in descending order

update

public void update()
            throws UnsupportedOperation

Throws:

UnsupportedOperation