Class JELSelectorTable

java.lang.Object
uk.ac.starlink.table.WrapperStarTable
uk.ac.starlink.ttools.filter.JELSelectorTable
All Implemented Interfaces:
Closeable, AutoCloseable, uk.ac.starlink.table.StarTable
public class JELSelectorTable extends uk.ac.starlink.table.WrapperStarTable
Sequential table which selects rows on the basis of a JEL-interpreted expression.
See Also:

  • Field Summary

    Fields inherited from class uk.ac.starlink.table.WrapperStarTable

    baseTable

  • Constructor Summary

    Constructors
    Constructor
    Description
    JELSelectorTable(uk.ac.starlink.table.StarTable baseTable, String expr)
    Construct a table given a base table and a selection expression.

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    getCell(long irow, int icol)
     
    Object[]
    getRow(long irow)
     
    uk.ac.starlink.table.RowAccess
    getRowAccess()
     
    long
    getRowCount()
     
    uk.ac.starlink.table.RowSequence
    getRowSequence()
     
    uk.ac.starlink.table.RowSplittable
    getRowSplittable()
     
    boolean
    isRandom()
     

    Methods inherited from class uk.ac.starlink.table.WrapperStarTable

    checkedLongToInt, close, getBaseTable, getColumnAuxDataInfos, getColumnCount, getColumnInfo, getName, getParameterByName, getParameters, getURL, setName, setParameter, setURL, toString

    Methods inherited from class Object

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

  • Constructor Details

    • JELSelectorTable

      public JELSelectorTable(uk.ac.starlink.table.StarTable baseTable, String expr) throws gnu.jel.CompilationException
      Construct a table given a base table and a selection expression.
      Parameters:
      baseTable - base table
      expr - boolean algebraic expression describing inclusion test
      Throws:
      gnu.jel.CompilationException

  • Method Details

    • isRandom

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

    • getRowCount

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

    • getCell

      public Object getCell(long irow, int icol)
      Specified by:
      getCell in interface uk.ac.starlink.table.StarTable
      Overrides:
      getCell in class uk.ac.starlink.table.WrapperStarTable

    • getRow

      public Object[] getRow(long irow)
      Specified by:
      getRow in interface uk.ac.starlink.table.StarTable
      Overrides:
      getRow in class uk.ac.starlink.table.WrapperStarTable

    • getRowAccess

      public uk.ac.starlink.table.RowAccess getRowAccess()
      Specified by:
      getRowAccess in interface uk.ac.starlink.table.StarTable
      Overrides:
      getRowAccess in class uk.ac.starlink.table.WrapperStarTable

    • getRowSequence

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

    • getRowSplittable

      public uk.ac.starlink.table.RowSplittable getRowSplittable() throws IOException
      Specified by:
      getRowSplittable in interface uk.ac.starlink.table.StarTable
      Overrides:
      getRowSplittable in class uk.ac.starlink.table.WrapperStarTable
      Throws:
      IOException

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