infovis.column
Class ObjectColumn

java.lang.Object
  infovis.utils.ChangeManager
      infovis.column.AbstractColumn
          infovis.column.BasicColumn
              infovis.column.BasicObjectColumn
                  infovis.column.ObjectColumn

All Implemented Interfaces:

IntComparator, Column, Metadata, Constants, RowComparator, Serializable

public class ObjectColumn
extends BasicObjectColumn

A Column of Strings.

Version:

$Revision: 1.37 $

Author:

fekete

See Also:

Serialized Form

InfoVis factory arguments:

ColumnFactory "object" 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

ObjectColumn(String name)
Creates a new StringColumn object.

ObjectColumn(String name, int reserve)
Creates a new ObjectColumn object.

Method Summary

Object	definedValue() Returns the instance of a value defined with the right type for this column.
static ObjectColumn	findColumn(Table t, String name) Returns a column as a ObjectColumn from a table, creating it if needed.
Object	get(int index) Returns the Object at the specified index or null.
static ObjectColumn	getColumn(Table t, int index) Returns a column as a ObjectColumn from an Table.
static ObjectColumn	getColumn(Table t, String name) Returns a column as a ObjectColumn from a Table.
void	set(int index, Object element) Replaces the element at the specified position in this column with the specified element.

Methods inherited from class infovis.column.BasicObjectColumn

add, capacity, clear, compare, compare, compareValues, ensureCapacity, fill, format, getObjectAt, getOrder, getValueAt, getValueClass, getValueReference, hasUndefinedValue, indexOf, isValueUndefined, parse, remove, remove, setExtend, setObjectAt, setOrder, setSize, setValueAt, setValueUndefined, size

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

disableNotify, enableNotify, removeChangeListener

Constructor Detail

ObjectColumn

public ObjectColumn(String name)

Creates a new StringColumn object.

Parameters:

name - the column name.

ObjectColumn

public ObjectColumn(String name,
                    int reserve)

Creates a new ObjectColumn object.

Parameters:

name - the column name.

reserve - the initial capacity.

Method Detail

get

public Object get(int index)

Returns the Object at the specified index or null.

Parameters:

index - the index

Returns:

the Object at the specified index or null.

set

public final void set(int index,
                      Object element)

Replaces the element at the specified position in this column with the specified element.

Parameters:

index - index of element to replace.

element - element to be stored at the specified position.

getColumn

public static ObjectColumn getColumn(Table t,
                                     int index)

Returns a column as a ObjectColumn from an Table.

Parameters:

t - the Table

index - index in the Table

Returns:

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

getColumn

public static ObjectColumn getColumn(Table t,
                                     String name)

Returns a column as a ObjectColumn from a Table.

Parameters:

t - the Table

name - the column name.

Returns:

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

findColumn

public static ObjectColumn findColumn(Table t,
                                      String name)

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

Parameters:

t - the Table

name - the column name.

Returns:

a column as a ObjectColumn from a table,

definedValue

public Object definedValue()

Returns the instance of a value defined with the right type for this column.

Specified by:

definedValue in class BasicObjectColumn

Returns:

the instance of a value defined with the right type for this column.