Package uk.ac.starlink.fits
Class ColFitsStarTable
- java.lang.Object
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- uk.ac.starlink.table.AbstractStarTable
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- uk.ac.starlink.fits.ColFitsStarTable
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,uk.ac.starlink.table.StarTable
public class ColFitsStarTable extends uk.ac.starlink.table.AbstractStarTable implements java.io.Closeable
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
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Constructor Summary
Constructors Constructor Description ColFitsStarTable(uk.ac.starlink.util.DataSource datsrc, nom.tam.fits.Header hdr, long dataPos, boolean force, WideFits wide)
Constructor.
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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)
long
getRowCount()
uk.ac.starlink.table.RowSequence
getRowSequence()
boolean
isRandom()
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Constructor Detail
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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 datahdr
- header of the HDU containing the tabledataPos
- offset intofile
of the start of the data part of the HDUforce
- true to make a table if we possibly can, false to reject if it doesn't look very much like onewide
- convention for representing extended columns; use null to avoid use of extended columns- Throws:
java.io.IOException
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Method Detail
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getColumnCount
public int getColumnCount()
- Specified by:
getColumnCount
in interfaceuk.ac.starlink.table.StarTable
- Specified by:
getColumnCount
in classuk.ac.starlink.table.AbstractStarTable
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getRowCount
public long getRowCount()
- Specified by:
getRowCount
in interfaceuk.ac.starlink.table.StarTable
- Specified by:
getRowCount
in classuk.ac.starlink.table.AbstractStarTable
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isRandom
public boolean isRandom()
- Specified by:
isRandom
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
isRandom
in classuk.ac.starlink.table.AbstractStarTable
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getColumnInfo
public uk.ac.starlink.table.ColumnInfo getColumnInfo(int icol)
- Specified by:
getColumnInfo
in interfaceuk.ac.starlink.table.StarTable
- Specified by:
getColumnInfo
in classuk.ac.starlink.table.AbstractStarTable
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getCell
public java.lang.Object getCell(long irow, int icol) throws java.io.IOException
- Specified by:
getCell
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getCell
in classuk.ac.starlink.table.AbstractStarTable
- Throws:
java.io.IOException
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getRow
public java.lang.Object[] getRow(long irow) throws java.io.IOException
- Specified by:
getRow
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getRow
in classuk.ac.starlink.table.AbstractStarTable
- Throws:
java.io.IOException
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getRowSequence
public uk.ac.starlink.table.RowSequence getRowSequence() throws java.io.IOException
- Specified by:
getRowSequence
in interfaceuk.ac.starlink.table.StarTable
- Specified by:
getRowSequence
in classuk.ac.starlink.table.AbstractStarTable
- Throws:
java.io.IOException
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close
public void close() throws java.io.IOException
- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Throws:
java.io.IOException
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