Package uk.ac.starlink.fits

Class ColFitsStarTable

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable, uk.ac.starlink.table.StarTable
    public class ColFitsStarTable
extends uk.ac.starlink.table.AbstractStarTable
    StarTable based on a single-row FITS BINTABLE which contains the data for an entire column in each cell of the table. The BINTABLE must be the first extension of a FITS file.

    Some instances of this class hang on to file descriptors. If you are in danger of running out of that resource before insstances are garbage collected, you can call the close() method to release them. Attempting to read data following such a call may result in an exception.

    Since:
    21 Jun 2006
    Author:
    Mark Taylor

    • Constructor Summary

      Constructors 
      Constructor Description
      ColFitsStarTable​(uk.ac.starlink.util.DataSource datsrc, nom.tam.fits.Header hdr, long dataPos, boolean force, WideFits wide)
      Constructor.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()  
      java.lang.Object getCell​(long irow, int icol)  
      int getColumnCount()  
      uk.ac.starlink.table.ColumnInfo getColumnInfo​(int icol)  
      java.lang.Object[] getRow​(long irow)  
      uk.ac.starlink.table.RowAccess getRowAccess()  
      long getRowCount()  
      uk.ac.starlink.table.RowSequence getRowSequence()  
      boolean isRandom()  

      • Methods inherited from class uk.ac.starlink.table.AbstractStarTable

        checkedLongToInt, getColumnAuxDataInfos, getName, getParameters, getRowSplittable, getURL, setName, setParameters, setURL

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface uk.ac.starlink.table.StarTable

        getParameterByName, setParameter

    • Constructor Detail

      • ColFitsStarTable

        public ColFitsStarTable​(uk.ac.starlink.util.DataSource datsrc,
                        nom.tam.fits.Header hdr,
                        long dataPos,
                        boolean force,
                        WideFits wide)
                 throws java.io.IOException
        Constructor.
        Parameters:
        datsrc - data source containing the FITS data
        hdr - header of the HDU containing the table
        dataPos - offset into file of the start of the data part of the HDU
        force - true to make a table if we possibly can, false to reject if it doesn't look very much like one
        wide - convention for representing extended columns; use null to avoid use of extended columns
        Throws:
        java.io.IOException

    • Method Detail

      • getColumnCount

        public int getColumnCount()
        Specified by:
        getColumnCount in interface uk.ac.starlink.table.StarTable
        Specified by:
        getColumnCount in class uk.ac.starlink.table.AbstractStarTable

      • getRowCount

        public long getRowCount()
        Specified by:
        getRowCount in interface uk.ac.starlink.table.StarTable
        Specified by:
        getRowCount in class uk.ac.starlink.table.AbstractStarTable

      • isRandom

        public boolean isRandom()
        Specified by:
        isRandom in interface uk.ac.starlink.table.StarTable
        Overrides:
        isRandom in class uk.ac.starlink.table.AbstractStarTable

      • getColumnInfo

        public uk.ac.starlink.table.ColumnInfo getColumnInfo​(int icol)
        Specified by:
        getColumnInfo in interface uk.ac.starlink.table.StarTable
        Specified by:
        getColumnInfo in class uk.ac.starlink.table.AbstractStarTable

      • getCell

        public java.lang.Object getCell​(long irow,
                                int icol)
                         throws java.io.IOException
        Specified by:
        getCell in interface uk.ac.starlink.table.StarTable
        Overrides:
        getCell in class uk.ac.starlink.table.AbstractStarTable
        Throws:
        java.io.IOException

      • getRow

        public java.lang.Object[] getRow​(long irow)
                          throws java.io.IOException
        Specified by:
        getRow in interface uk.ac.starlink.table.StarTable
        Overrides:
        getRow in class uk.ac.starlink.table.AbstractStarTable
        Throws:
        java.io.IOException

      • getRowSequence

        public uk.ac.starlink.table.RowSequence getRowSequence()
                                                throws java.io.IOException
        Specified by:
        getRowSequence in interface uk.ac.starlink.table.StarTable
        Specified by:
        getRowSequence in class uk.ac.starlink.table.AbstractStarTable
        Throws:
        java.io.IOException

      • getRowAccess

        public uk.ac.starlink.table.RowAccess getRowAccess()
                                            throws java.io.IOException
        Specified by:
        getRowAccess in interface uk.ac.starlink.table.StarTable
        Overrides:
        getRowAccess in class uk.ac.starlink.table.AbstractStarTable
        Throws:
        java.io.IOException

      • close

        public void close()
           throws java.io.IOException
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Specified by:
        close in interface uk.ac.starlink.table.StarTable
        Overrides:
        close in class uk.ac.starlink.table.AbstractStarTable
        Throws:
        java.io.IOException