Class BaseAttitudeDataServer<A extends Attitude>

  • Type Parameters:
    A - type of Attitude that the server is serving
    Direct Known Subclasses:
    AnalyticalAttitudeDataServer, NumericalAttitudeDataServer

    public abstract class BaseAttitudeDataServer<A extends Attitude>
    extends java.lang.Object
    Common base class for all attitude data servers. This holds all common fields e.g. the time origin for relative time scales (in ns) and implements getAttitude(long) in terms of getAttitude(long) which is the same for all servers. The time context and its possible switch is implemented in a thread-safe manner. Derived classes should hence be likewise thread-safe.
    • Field Detail

      • initialized

        protected boolean initialized
        Some scanning laws have constants or tables for interpolation that need to be computed before the first use and recomputed after changing certain reference values. This flag indicates that the constants or tables (whatever applicable) are up to date.
      • nativeTimeContext

        protected TimeContext nativeTimeContext
        native and initially requested time context of the server - has to be set by the implementing class
      • initialRequestedTimeContext

        protected TimeContext initialRequestedTimeContext
      • withUncertaintiesCorrelations

        protected boolean withUncertaintiesCorrelations
        switch to decide if attitude uncertainties and correlations should be calculated
    • Constructor Detail

      • BaseAttitudeDataServer

        public BaseAttitudeDataServer()
    • Method Detail

      • isInitialized

        public boolean isInitialized()
        Returns the initialised.
      • setInitialized

        public void setInitialized​(boolean initialized)
      • getAttitude

        public A getAttitude​(java.util.Date date)
      • getAttitude

        public A getAttitude​(long time)
        time - The elapsed time in nanoseconds since J2010
      • getAttitudeNative

        protected abstract A getAttitudeNative​(long time)
        Evaluate the attitude in the native time system of the server
      • setRefTime

        public void setRefTime​(long t)
        t - Reference time in nanoseconds (jd)
      • getRefTime

        public long getRefTime()
        The reference time in ns