org.orekit.utils

Class TimeSpanMap<T>

java.lang.Object

org.orekit.utils.TimeSpanMap<T>

Type Parameters:

T - Type of the data.

public class TimeSpanMap<T>
extends Object

Container for objects that apply to spans of time.

Since:

7.1

Author:

Luc Maisonobe

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TimeSpanMap.Transition<S> Local class holding transition times.

Constructor Summary

Constructors

Constructor and Description
TimeSpanMap(T entry) Create a map containing a single object, initially valid throughout the timeline.

Method Summary

Modifier and Type	Method and Description
void	addValidAfter(T entry, AbsoluteDate earliestValidityDate) Add an entry valid after a limit date.
void	addValidBefore(T entry, AbsoluteDate latestValidityDate) Add an entry valid before a limit date.
T	get(AbsoluteDate date) Get the entry valid at a specified date.
SortedSet<TimeSpanMap.Transition<T>>	getTransitions() Get an unmodifiable view of the sorted transitions.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeSpanMap

public TimeSpanMap(T entry)

Create a map containing a single object, initially valid throughout the timeline.

The real validity of this first entry will be truncated as other entries are either added before it or added after it.

Parameters:

entry - entry (initially valid throughout the timeline)

Method Detail

addValidBefore

public void addValidBefore(T entry,
                           AbsoluteDate latestValidityDate)

Add an entry valid before a limit date.

As an entry is valid, it truncates the validity of the neighboring entries already present in the map.

The transition dates should be entered only once, either by a call to this method or by a call to addValidAfter(Object, AbsoluteDate). Repeating a transition date will lead to unexpected result and is not supported.

Parameters:

entry - entry to add

latestValidityDate - date before which the entry is valid (sould be different from all dates already used for transitions)

addValidAfter

public void addValidAfter(T entry,
                          AbsoluteDate earliestValidityDate)

Add an entry valid after a limit date.

As an entry is valid, it truncates the validity of the neighboring entries already present in the map.

The transition dates should be entered only once, either by a call to this method or by a call to addValidBefore(Object, AbsoluteDate). Repeating a transition date will lead to unexpected result and is not supported.

Parameters:

entry - entry to add

earliestValidityDate - date after which the entry is valid (sould be different from all dates already used for transitions)

get

public T get(AbsoluteDate date)

Get the entry valid at a specified date.

Parameters:

date - date at which the entry must be valid

Returns:

valid entry at specified date

getTransitions

public SortedSet<TimeSpanMap.Transition<T>> getTransitions()

Get an unmodifiable view of the sorted transitions.

Returns:

unmodifiable view of the sorted transitions