Package uk.ac.starlink.ttools.filter
Class HeadTable
java.lang.Object
uk.ac.starlink.table.WrapperStarTable
uk.ac.starlink.ttools.filter.HeadTable
- All Implemented Interfaces:
Closeable
,AutoCloseable
,uk.ac.starlink.table.StarTable
public class HeadTable
extends uk.ac.starlink.table.WrapperStarTable
Wrapper table implementation which only contains the first N rows of
its base table.
- Since:
- 7 Mar 2005
- Author:
- Mark Taylor (Starlink)
-
Field Summary
Fields inherited from class uk.ac.starlink.table.WrapperStarTable
baseTable
-
Constructor Summary
Constructors -
Method Summary
Methods inherited from class uk.ac.starlink.table.WrapperStarTable
checkedLongToInt, close, getBaseTable, getColumnAuxDataInfos, getColumnCount, getColumnInfo, getName, getParameterByName, getParameters, getURL, isRandom, setName, setParameter, setURL, toString
-
Constructor Details
-
HeadTable
public HeadTable(uk.ac.starlink.table.StarTable base, long nhead) Constructor.- Parameters:
base
- base tablenhead
- number of rows at the head of the table to use
-
-
Method Details
-
getRowCount
public long getRowCount()- Specified by:
getRowCount
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getRowCount
in classuk.ac.starlink.table.WrapperStarTable
-
getCell
- Specified by:
getCell
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getCell
in classuk.ac.starlink.table.WrapperStarTable
- Throws:
IOException
-
getRow
- Specified by:
getRow
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getRow
in classuk.ac.starlink.table.WrapperStarTable
- Throws:
IOException
-
getRowSequence
- Specified by:
getRowSequence
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getRowSequence
in classuk.ac.starlink.table.WrapperStarTable
- Throws:
IOException
-
getRowAccess
- Specified by:
getRowAccess
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getRowAccess
in classuk.ac.starlink.table.WrapperStarTable
- Throws:
IOException
-
getRowSplittable
- Specified by:
getRowSplittable
in interfaceuk.ac.starlink.table.StarTable
- Overrides:
getRowSplittable
in classuk.ac.starlink.table.WrapperStarTable
- Throws:
IOException
-