infovis.column
Class AbstractColumn

java.lang.Object
  infovis.utils.ChangeManager
      infovis.column.AbstractColumn

All Implemented Interfaces:

IntComparator, Column, Metadata, Constants, RowComparator, Serializable

Direct Known Subclasses:

BasicColumn, ColumnProxy

public abstract class AbstractColumn
extends ChangeManager
implements Column

AbstractColumn is the base class for each concrete column.

AbstractColumn implements the notification mechanism and its inhibition.

Version:

$Revision: 1.24 $

Author:

Jean-Daniel Fekete

See Also:

Serialized Form

Field Summary

static int	MODIFIED_ALL Value of lastModifiedRow when more than one row has been modified.
static int	MODIFIED_NONE Value of lastModifiedRow when no row has been modified.

Fields inherited from interface infovis.metadata.Constants

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

Constructor Summary

AbstractColumn()

Method Summary

void	addChangeListener(ChangeListener listener) Adds a ChangeListener to call when this column is modified.
boolean	compareValues(Column c) Compare the values of this column and the specified column.
IntIntSortedMap	computeValueMap() Returns the list of uniq elements of this columns associated with their count.
IntIntSortedMap	computeValueMap(RowComparator comp) Returns the list of uniq elements of this columns associated with their count.
static boolean	equalObj(Object o1, Object o2) Compare two objects that can be null.
boolean	equals(Object obj)
int	getLastModifiedRow() Return the last modified row.
String	toString()

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

addValue, addValueOrNull, capacity, clear, disableNotify, enableNotify, ensureCapacity, getFormat, getMaxIndex, getMinIndex, getName, getValueAt, getValueClass, hasUndefinedValue, isEmpty, isInternal, isValueUndefined, iterator, removeChangeListener, setFormat, setName, setSize, setValueAt, setValueOrNullAt, setValueUndefined, size

Methods inherited from interface infovis.Metadata

getClientProperty, getMetadata

Methods inherited from interface cern.colt.function.IntComparator

compare

Field Detail

MODIFIED_ALL

public static final int MODIFIED_ALL

Value of lastModifiedRow when more than one row has been modified.

See Also:

Constant Field Values

MODIFIED_NONE

public static final int MODIFIED_NONE

Value of lastModifiedRow when no row has been modified.

See Also:

Constant Field Values

Constructor Detail

AbstractColumn

public AbstractColumn()

Method Detail

getLastModifiedRow

public int getLastModifiedRow()

Return the last modified row.

Returns:

the last modified row

equalObj

public static boolean equalObj(Object o1,
                               Object o2)

Compare two objects that can be null.

Parameters:

o1 - first object

o2 - second object

Returns:

true if both object have the same value or are equal.

equals

public boolean equals(Object obj)

Specified by:

equals in interface IntComparator

Overrides:

equals in class Object

compareValues

public boolean compareValues(Column c)

Compare the values of this column and the specified column.

Parameters:

c - the column to compare values from

Returns:

true if the values match, false otherwise

addChangeListener

public void addChangeListener(ChangeListener listener)

Adds a ChangeListener to call when this column is modified.

Specified by:

addChangeListener in interface Column

Overrides:

addChangeListener in class ChangeManager

Parameters:

listener - the listener to add

toString

public String toString()

Overrides:

toString in class Object

computeValueMap

public IntIntSortedMap computeValueMap(RowComparator comp)

Returns the list of uniq elements of this columns associated with their count.

The list contains tuples: the index of a representative of the value and the number of repetition of this value.

Parameters:

comp - a comparator used to order the value or null if it should appear in the order specified by the column.

Returns:

a IntIntSortedMap that can be read using an iterator.

computeValueMap

public IntIntSortedMap computeValueMap()

Returns the list of uniq elements of this columns associated with their count.

The list contains tuples: the index of a representative of the value and the number of repetition of this value.

Returns:

a IntIntSortedMap that can be read using an iterator.