Package org.hipparchus.ode.sampling
Interface FieldODEFixedStepHandler<T extends CalculusFieldElement<T>>
- Type Parameters:
T
- the type of the field elements
public interface FieldODEFixedStepHandler<T extends CalculusFieldElement<T>>
This interface represents a handler that should be called after
each successful fixed step.
This interface should be implemented by anyone who is interested
in getting the solution of an ordinary differential equation at
fixed time steps. Objects implementing this interface should be
wrapped within an instance of FieldStepNormalizer
that itself
is used as the general FieldODEStepHandler
by the integrator. The
FieldStepNormalizer
object is called according to the integrator
internal algorithms and it calls objects implementing this
interface as necessary at fixed time steps.
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Method Summary
Modifier and TypeMethodDescriptionvoid
handleStep
(FieldODEStateAndDerivative<T> state, boolean isLast) Handle the last accepted stepdefault void
init
(FieldODEStateAndDerivative<T> initialState, T finalTime) Initialize step handler at the start of an ODE integration.
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Method Details
-
init
Initialize step handler at the start of an ODE integration.This method is called once at the start of the integration. It may be used by the step handler to initialize some internal data if needed.
The default implementation does nothing.
- Parameters:
initialState
- initial time, state vector and derivativefinalTime
- target time for the integration
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handleStep
Handle the last accepted step- Parameters:
state
- current value of the independent time variable, state vector and derivative For efficiency purposes, theFieldStepNormalizer
class reuses the same array on each call, so if the instance wants to keep it across all calls (for example to provide at the end of the integration a complete array of all steps), it should build a local copy store this copy.isLast
- true if the step is the last one
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