Package org.apache.commons.math.ode.events

Class CombinedEventsManager

java.lang.Object

org.apache.commons.math.ode.events.CombinedEventsManager

@Deprecated
public class CombinedEventsManager
extends Object

Deprecated.

as of 2.2, this class is not used anymore

This class manages several event handlers during integration.

Since:

1.2

See Also:

EventHandler, EventState

Constructor Summary

Constructors

Constructor	Description
CombinedEventsManager()	Deprecated. Simple constructor.

Method Summary

Modifier and Type	Method	Description
void	addEventHandler(EventHandler handler, double maxCheckInterval, double convergence, int maxIterationCount)	Deprecated. Add an events handler.
void	clearEventsHandlers()	Deprecated. Remove all the events handlers that have been added to the manager.
boolean	evaluateStep(StepInterpolator interpolator)	Deprecated. Evaluate the impact of the proposed step on all managed event handlers.
Collection<EventHandler>	getEventsHandlers()	Deprecated. Get all the events handlers that have been added to the manager.
Collection<EventState>	getEventsStates()	Deprecated. Get all the events state wrapping the handlers that have been added to the manager.
double	getEventTime()	Deprecated. Get the occurrence time of the first event triggered in the last evaluated step.
boolean	isEmpty()	Deprecated. Check if the manager does not manage any event handlers.
boolean	reset(double t, double[] y)	Deprecated. Let the event handlers reset the state if they want.
void	stepAccepted(double t, double[] y)	Deprecated. Inform the event handlers that the step has been accepted by the integrator.
boolean	stop()	Deprecated. Check if the integration should be stopped at the end of the current step.

Methods inherited from class java.lang.Object

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

Constructor Detail

CombinedEventsManager

public CombinedEventsManager()

Deprecated.

Simple constructor. Create an empty manager

Method Detail

addEventHandler

public void addEventHandler(EventHandler handler,
                            double maxCheckInterval,
                            double convergence,
                            int maxIterationCount)

Deprecated.

Add an events handler.

Parameters:

handler - event handler

maxCheckInterval - maximal time interval between events checks (this interval prevents missing sign changes in case the integration steps becomes very large)

convergence - convergence threshold in the event time search

maxIterationCount - upper limit of the iteration count in the event time search

See Also:

getEventsHandlers(), clearEventsHandlers()

getEventsHandlers

public Collection<EventHandler> getEventsHandlers()

Deprecated.

Get all the events handlers that have been added to the manager.

Returns:

an unmodifiable collection of the added event handlers

See Also:

addEventHandler(EventHandler, double, double, int), clearEventsHandlers(), getEventsStates()

clearEventsHandlers

public void clearEventsHandlers()

Deprecated.

Remove all the events handlers that have been added to the manager.

See Also:

addEventHandler(EventHandler, double, double, int), getEventsHandlers()

getEventsStates

public Collection<EventState> getEventsStates()

Deprecated.

Get all the events state wrapping the handlers that have been added to the manager.

Returns:

a collection of the events states

See Also:

getEventsHandlers()

isEmpty

public boolean isEmpty()

Deprecated.

Check if the manager does not manage any event handlers.

Returns:

true if manager is empty

evaluateStep

public boolean evaluateStep(StepInterpolator interpolator)
                     throws DerivativeException,
                            IntegratorException

Deprecated.

Evaluate the impact of the proposed step on all managed event handlers.

Parameters:

interpolator - step interpolator for the proposed step

Returns:

true if at least one event handler triggers an event before the end of the proposed step (this implies the step should be rejected)

Throws:

DerivativeException - if the interpolator fails to compute the function somewhere within the step

IntegratorException - if an event cannot be located

getEventTime

public double getEventTime()

Deprecated.

Get the occurrence time of the first event triggered in the last evaluated step.

Returns:

occurrence time of the first event triggered in the last evaluated step, or Double.NaN if no event is triggered

stepAccepted

public void stepAccepted(double t,
                         double[] y)
                  throws IntegratorException

Deprecated.

Inform the event handlers that the step has been accepted by the integrator.

Parameters:

t - value of the independent time variable at the end of the step

y - array containing the current value of the state vector at the end of the step

Throws:

IntegratorException - if the value of one of the events states cannot be evaluated

stop

public boolean stop()

Deprecated.

Check if the integration should be stopped at the end of the current step.

Returns:

true if the integration should be stopped

reset

public boolean reset(double t,
                     double[] y)
              throws IntegratorException

Deprecated.

Let the event handlers reset the state if they want.

Parameters:

t - value of the independent time variable at the beginning of the next step

y - array were to put the desired state vector at the beginning of the next step

Returns:

true if the integrator should reset the derivatives too

Throws:

IntegratorException - if one of the events states that should reset the state fails to do it