infovis.column
Class CategoricalColumn

java.lang.Object
  infovis.utils.ChangeManager
      infovis.column.AbstractColumn
          infovis.column.BasicColumn
              infovis.column.LiteralColumn
                  infovis.column.IntColumn
                      infovis.column.CategoricalColumn

All Implemented Interfaces:

IntComparator, Column, NumberColumn, Metadata, Constants, RowComparator, Serializable

public class CategoricalColumn
extends IntColumn

Specialization of an IntColumn storing categorical values.

Version:

$Revision: 1.20 $

Author:

Jean-Daniel Fekete

See Also:

Serialized Form

InfoVis factory arguments:

ColumnFactory "categorical" DENSE, ColumnFactory "cat" DENSE

Field Summary

Fields inherited from class infovis.column.AbstractColumn

MODIFIED_ALL, MODIFIED_NONE

Fields inherited from interface infovis.metadata.Constants

CONTRIBUTOR, COVERAGE, CREATOR, DATE, DESCRITION, FORMAT, IDENTIFIER, LANGUAGE, PUBLISHER, RELATION, RIGHTS, SOURCE, SUBJECT, TITLE, TYPE

Constructor Summary

CategoricalColumn(String name)
Constructor for CategoricalColumn.

CategoricalColumn(String name, int reserve, Map map)
Constructor for CategoricalColumn.

Method Summary

static IntColumn	findColumn(Table t, String name) Returns a column as a IntColumn from a table, creating it if needed.
static IntColumn	getColumn(Table t, int index) Returns a column as a IntColumn from an Table.

Methods inherited from class infovis.column.IntColumn

add, addExtend, capacity, clear, ensureCapacity, fill, format, format, get, getColumn, getDoubleAt, getFloatAt, getIntAt, getLongAt, getMax, getMin, getValueAt, getValueClass, getValueReference, parse, round, set, setDoubleAt, setExtend, setIntAt, setLongAt, setSize, setValueAt, size, sort, stableSort, toArray, toArray

Methods inherited from class infovis.column.LiteralColumn

compare, compareValues, getDoubleMax, getDoubleMin, getNumberColumn, hasUndefinedValue, isValueUndefined, setFloatAt, setValueUndefined, trimUndefined

Methods inherited from class infovis.column.BasicColumn

addValue, addValueOrNull, firstValidRow, getClientProperty, getFormat, getMaxIndex, getMetadata, getMinIndex, getName, isEmpty, isInternal, iterator, lastValidRow, setFormat, setName, setValueOrNullAt, toString

Methods inherited from class infovis.column.AbstractColumn

addChangeListener, computeValueMap, computeValueMap, equalObj, equals, getLastModifiedRow

Methods inherited from class infovis.utils.ChangeManager

disableNotify, enableNotify, getModCount, removeChangeListener

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface infovis.Column

addChangeListener, addValue, addValueOrNull, disableNotify, enableNotify, getFormat, getMaxIndex, getMinIndex, getName, isEmpty, isInternal, iterator, removeChangeListener, setFormat, setName, setValueOrNullAt

Methods inherited from interface infovis.Metadata

getClientProperty, getMetadata

Methods inherited from interface cern.colt.function.IntComparator

equals

Constructor Detail

CategoricalColumn

public CategoricalColumn(String name)

Constructor for CategoricalColumn.

Parameters:

name - the column name

CategoricalColumn

public CategoricalColumn(String name,
                         int reserve,
                         Map map)

Constructor for CategoricalColumn.

Parameters:

name - the Column name.

reserve - the initial reserved size.

map - the initial category map.

Method Detail

getColumn

public static IntColumn getColumn(Table t,
                                  int index)

Returns a column as a IntColumn from an Table.

Parameters:

t - the Table

index - index in the DefaultTable

Returns:

a IntColumn or null if no such column exists or the column is not a IntColumn.

findColumn

public static IntColumn findColumn(Table t,
                                   String name)

Returns a column as a IntColumn from a table, creating it if needed.

Parameters:

t - the Table

name - the column name.

Returns:

a column as a IntColumn from a table,