water.api.TwoDimTableBase Maven / Gradle / Ivy

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package water.api;

import water.AutoBuffer;
import water.H2O;
import water.Iced;
import water.IcedWrapper;
import water.util.TwoDimTable;

/**
 * Client-facing Schema of a TwoDimTable
 * Notes:
 * 1) We embed the rowHeaders into the table, extending it by 1 column
 * 2) We store all the data in column-major order
 * 3) We store all the data in String format
 *
 */
public class TwoDimTableBase extends Schema> {
  public static class ColumnSpecsBase extends Schema {
    @API(help="Column Name", direction=API.Direction.OUTPUT)
    String name;
    @API(help="Column Type", direction=API.Direction.OUTPUT)
    String type;
    @API(help="Column Format (printf)", direction=API.Direction.OUTPUT)
    String format;
    @API(help="Column Description", direction=API.Direction.OUTPUT)
    String description;
  }

  @API(help="Table Name", direction=API.Direction.OUTPUT)
  public String name;

  @API(help="Table Description", direction=API.Direction.OUTPUT)
  public String description;

  @API(help="Column Specification", direction=API.Direction.OUTPUT)
  public ColumnSpecsBase[] columns;

  @API(help="Number of Rows", direction=API.Direction.OUTPUT)
  public int rowcount;

  @API(help="Table Data (col-major)", direction=API.Direction.OUTPUT)
  public IcedWrapper[][] data;

  /**
   * Fill a TwoDimTable Schema from a TwoDimTable
   * @param t TwoDimTable
   * @return TwoDimTableSchema
   */
  @Override public TwoDimTableBase fillFromImpl(TwoDimTable t) {
    name = t.getTableHeader();
    description = t.getTableDescription();
    final int rows = t.getRowDim();
    rowcount = rows;
    boolean have_row_header_cols = t.getColHeaderForRowHeaders() != null;
    for (int r=0; r " + newString);
//    }
    return newString;
  }

  /**
   * Fill a TwoDimTable from this Schema
   * @param impl
   * @return
   */
  public TwoDimTable fillImpl(TwoDimTable impl) {
    final int rows = data[0].length;
    assert(rows == rowcount);
    final int cols = data.length+1;
    String tableHeader = name;
    String tableDescription = description;
    String colHeaderForRowHeaders = columns[0].name;
    String[] rowHeaders = new String[rows];
    for (int r=0; r