Class VariableFitsTableSerializer

  • All Implemented Interfaces:
    FitsTableSerializer

    public class VariableFitsTableSerializer
    extends StandardFitsTableSerializer
    FitsTableSerializer which can write variable array-valued columns using the 'P' or 'Q' TFORM formatting characters.
    Since:
    10 Jul 2008
    Author:
    Mark Taylor
    • Constructor Summary

      Constructors 
      Constructor Description
      VariableFitsTableSerializer​(uk.ac.starlink.table.StarTable table, uk.ac.starlink.table.StoragePolicy storagePolicy, boolean allowSignedByte, WideFits wide)
      Constructor.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      nom.tam.fits.Header getHeader()
      Returns a header suitable for the HDU which will contain the table.
      void set64BitMode​(boolean useQ)
      Sets whether this serializer should use the 'P' descriptor (32-bit addressing into the heap) or the 'Q' descriptor (64-bit addressing into the heap) for variable-length array columns.
      void writeData​(java.io.DataOutput out)
      Writes the HDU data for the table to an output stream.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • VariableFitsTableSerializer

        public VariableFitsTableSerializer​(uk.ac.starlink.table.StarTable table,
                                           uk.ac.starlink.table.StoragePolicy storagePolicy,
                                           boolean allowSignedByte,
                                           WideFits wide)
                                    throws java.io.IOException
        Constructor.
        Parameters:
        table - table to write
        storagePolicy - policy for acquiring byte array scratch buffers
        allowSignedByte - if true, bytes written as FITS signed bytes (TZERO=-128), if false bytes written as signed shorts
        wide - convention for representing over-wide tables; null to avoid this convention
        Throws:
        java.io.IOException - if it won't be possible to write the given table
    • Method Detail

      • set64BitMode

        public void set64BitMode​(boolean useQ)
        Sets whether this serializer should use the 'P' descriptor (32-bit addressing into the heap) or the 'Q' descriptor (64-bit addressing into the heap) for variable-length array columns. Normally Q is only used if the heap is larger than 2^31.
        Parameters:
        useQ - true for Q, false for P