infovis.column
Class IdColumn

java.lang.Object
  infovis.column.ConstantColumn
      infovis.column.IdColumn

All Implemented Interfaces:

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

public class IdColumn
extends ConstantColumn

Class IdColumn

Version:

$Revision: 1.19 $

Author:

Jean-Daniel Fekete

See Also:

Serialized Form

Field Summary

Fields inherited from interface infovis.metadata.Constants

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

Constructor Summary

IdColumn()

IdColumn(int size)

Method Summary

int	compare(int row1, int row2)
String	format(int v) Returns the string representation of a value according to the current format.
int	get(int row)
double	getDoubleAt(int row) Returns the value as a double.
int	getMaxIndex() Returns an the index of a row containing the maximum value of this column or -1 if the column has only undefined values or is empty.
int	getMinIndex() Returns an the index of a row containing the minimum value of this column or -1 if the column has only undefined values or is empty.
String	getName() Returns the column name.
int	getSize()
Class	getValueClass() Returns the class of the elements.
boolean	hasUndefinedValue() Returns true if the columns contains undefined values, false otherwise.
boolean	isValueUndefined(int i) Returns true if the ith value is undefined.
int	lastValidRow()
int	parse(String v) Parse a string and return the value for the column.
double	round(double value) Returns the rounded value according to the semantics of this number value.
void	set(int row)
void	setSize(int i) Sets the size of this column.
void	setValueAt(int index, String element) Replaces the element at the specified position in this column with the element specified in its String representation or sets if undefined if the element is null It will be read and translated using the Format.
void	setValueUndefined(int i, boolean undef) Sets the ith element to have an undefined value.
int	size() Returns the number of elements in this column.

Methods inherited from class infovis.column.ConstantColumn

addChangeListener, addValue, addValueOrNull, capacity, clear, disableNotify, enableNotify, ensureCapacity, format, getClientProperty, getDoubleMax, getDoubleMin, getFloatAt, getFormat, getIntAt, getLongAt, getMetadata, getValueAt, isEmpty, isInternal, iterator, removeChangeListener, setDoubleAt, setFloatAt, setFormat, setIntAt, setLongAt, setName, setValueOrNullAt

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface cern.colt.function.IntComparator

equals

Constructor Detail

IdColumn

public IdColumn(int size)

IdColumn

public IdColumn()

Method Detail

getName

public String getName()

Description copied from class: ConstantColumn

Returns the column name.

Specified by:

getName in interface Column

Overrides:

getName in class ConstantColumn

Returns:

the column name.

getMinIndex

public int getMinIndex()

Description copied from class: ConstantColumn

Returns an the index of a row containing the minimum value of this column or -1 if the column has only undefined values or is empty.

Specified by:

getMinIndex in interface Column

Overrides:

getMinIndex in class ConstantColumn

Returns:

the index of a row containing the minium value of this column.

getMaxIndex

public int getMaxIndex()

Description copied from class: ConstantColumn

Returns an the index of a row containing the maximum value of this column or -1 if the column has only undefined values or is empty.

Specified by:

getMaxIndex in interface Column

Overrides:

getMaxIndex in class ConstantColumn

Returns:

the index of a row containing the maximum value of this column.

get

public int get(int row)

set

public void set(int row)

getDoubleAt

public double getDoubleAt(int row)

Description copied from class: ConstantColumn

Returns the value as a double.

Specified by:

getDoubleAt in interface NumberColumn

Overrides:

getDoubleAt in class ConstantColumn

Parameters:

row - the row

Returns:

the value as a double

round

public double round(double value)

Description copied from class: ConstantColumn

Returns the rounded value according to the semantics of this number value.

Specified by:

round in interface NumberColumn

Overrides:

round in class ConstantColumn

Parameters:

value - the value to round

Returns:

the rounded value according to the semantics of this number value.

parse

public int parse(String v)
          throws ParseException

Parse a string and return the value for the column.

Parameters:

v - the string representation of the value

Returns:

the value

Throws:

ParseException - if the value cannot be parsed

format

public String format(int v)

Returns the string representation of a value according to the current format.

Parameters:

v - the value

Returns:

the string representation.

size

public int size()

Description copied from class: ConstantColumn

Returns the number of elements in this column.

Specified by:

size in interface Column

Overrides:

size in class ConstantColumn

Returns:

the number of elements in this column.

hasUndefinedValue

public boolean hasUndefinedValue()

Description copied from class: ConstantColumn

Returns true if the columns contains undefined values, false otherwise.

Specified by:

hasUndefinedValue in interface Column

Overrides:

hasUndefinedValue in class ConstantColumn

Returns:

true if the columns contains undefined values, false otherwise.

getValueClass

public Class getValueClass()

Description copied from class: ConstantColumn

Returns the class of the elements.

Specified by:

getValueClass in interface Column

Overrides:

getValueClass in class ConstantColumn

Returns:

the class of the elements.

isValueUndefined

public boolean isValueUndefined(int i)

Description copied from class: ConstantColumn

Returns true if the ith value is undefined.

Specified by:

isValueUndefined in interface Column

Specified by:

isValueUndefined in interface RowComparator

Overrides:

isValueUndefined in class ConstantColumn

Parameters:

i - the index

Returns:

true if the ith value is undefined.

lastValidRow

public int lastValidRow()

setValueAt

public void setValueAt(int index,
                       String element)
                throws ParseException

Description copied from class: ConstantColumn

Replaces the element at the specified position in this column with the element specified in its String representation or sets if undefined if the element is null It will be read and translated using the Format. A null value sets the value to undefined. The column is extended if needed.

Specified by:

setValueAt in interface Column

Overrides:

setValueAt in class ConstantColumn

Parameters:

index - index of element to replace.

element - element to be stored at the specified position.

Throws:

ParseException - if the specified string cannot be parsed.

setValueUndefined

public void setValueUndefined(int i,
                              boolean undef)

Description copied from class: ConstantColumn

Sets the ith element to have an undefined value.

Specified by:

setValueUndefined in interface Column

Overrides:

setValueUndefined in class ConstantColumn

Parameters:

i - the index

undef - true if the value should be undefined, false otherwise.

compare

public int compare(int row1,
                   int row2)

Description copied from class: ConstantColumn

Specified by:

compare in interface IntComparator

Overrides:

compare in class ConstantColumn

getSize

public int getSize()

setSize

public void setSize(int i)

Description copied from class: ConstantColumn

Sets the size of this column.

Some column will ignore this request.

Specified by:

setSize in interface Column

Overrides:

setSize in class ConstantColumn

Parameters:

i - the new size.