Class ConstantStarTable

All Implemented Interfaces:
Closeable, AutoCloseable, StarTable

public class ConstantStarTable extends RandomStarTable
Table implementation representing a table in which every row is the same as every other.
Since:
3 Jul 2006
Author:
Mark Taylor
  • Constructor Details

    • ConstantStarTable

      public ConstantStarTable(ColumnInfo[] infos, Object[] cells, long nrow)
      Constructs a new constant star table.
      Parameters:
      infos - array of column metadata objects (one for each column)
      cells - row data - the same for every row
      nrow - number of rows in this table
  • Method Details

    • getColumnCount

      public int getColumnCount()
      Description copied from interface: StarTable
      Returns the number of columns in this table.
      Specified by:
      getColumnCount in interface StarTable
      Specified by:
      getColumnCount in class AbstractStarTable
      Returns:
      the number of columns
    • getColumnInfo

      public ColumnInfo getColumnInfo(int icol)
      Description copied from interface: StarTable
      Returns the object describing the data in a given column.
      Specified by:
      getColumnInfo in interface StarTable
      Specified by:
      getColumnInfo in class AbstractStarTable
      Parameters:
      icol - the column for which header information is required
      Returns:
      a ValueInfo object for column icol
    • getRowCount

      public long getRowCount()
      Description copied from class: RandomStarTable
      Implementations must supply a non-negative return value.
      Specified by:
      getRowCount in interface StarTable
      Specified by:
      getRowCount in class RandomStarTable
      Returns:
      the number of rows in the table
    • isRandom

      public boolean isRandom()
      Description copied from class: RandomStarTable
      Returns true.
      Specified by:
      isRandom in interface StarTable
      Overrides:
      isRandom in class RandomStarTable
      Returns:
      true
    • getCell

      public Object getCell(long lrow, int icol)
      Description copied from class: RandomStarTable
      Implementations of this method must be safe for concurrent calls from multiple threads.
      Specified by:
      getCell in interface StarTable
      Specified by:
      getCell in class RandomStarTable
      Parameters:
      lrow - the index of the cell's row
      icol - the index of the cell's column
      Returns:
      the contents of this cell