infovis.column
Class LongColumn

java.lang.Object
  infovis.utils.ChangeManager
      infovis.column.AbstractColumn
          infovis.column.BasicColumn
              infovis.column.LiteralColumn
                  infovis.column.LongColumn

All Implemented Interfaces:

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

Direct Known Subclasses:

DateColumn

public class LongColumn
extends LiteralColumn

A Column of longs.

Version:

$Revision: 1.40 $

Author:

fekete

See Also:

Serialized Form

InfoVis factory arguments:

ColumnFactory "long" 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

LongColumn(String name)
Creates a new LongColumn object.

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

Method Summary

void	add(long element) Adds a new element in the column.
int	capacity() Returns the current capacity of this column.
void	clear() Removes all of the elements from this column.
void	ensureCapacity(int minCapacity) Increases the capacity of this column, if necessary, to ensure that it can hold at least the number of values specified by the minimum capacity argument.
void	fill(long val) Fills the column with the specified value
static LongColumn	findColumn(Table t, String name) Returns a column as a LongColumn from a table, creating it if needed.
String	format(double value) Returns the specified value formatted according to this column's format.
String	format(long v) Returns the string representation of a value according to the current format.
long	get(int index) Returns the element at the specified position in this column.
static LongColumn	getColumn(Table t, int index) Returns a column as a LongColumn from a Table.
static LongColumn	getColumn(Table t, String name) Returns a column as a LongColumn from a Table.
double	getDoubleAt(int row) Returns the value as a double
float	getFloatAt(int row) Returns the value as a float
int	getIntAt(int row) Returns the value as an int
long	getLongAt(int row) Returns the value as a long
long	getMax()
long	getMin()
String	getValueAt(int i) Returns the String representation of the element at the specified position in this column or null if the element is undefined.
Class	getValueClass() Returns the class of the elements.
LongArrayList	getValueReference()
long	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 index, long element) Replaces the element at the specified position in this column with the specified element.
void	setDoubleAt(int row, double v) Sets the value as a double
void	setExtend(int index, long element) Replaces the element at the specified position in this column with the specified element, growing the column if necessary.
void	setLongAt(int row, long v) Sets the value as a long
void	setSize(int newSize) Sets the sizeColumn of this column.
void	setValueAt(int i, String v) 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.
int	size() Returns the number of elements in this column.

Methods inherited from class infovis.column.LiteralColumn

compare, compareValues, getDoubleMax, getDoubleMin, getNumberColumn, hasUndefinedValue, isValueUndefined, setFloatAt, setIntAt, 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

LongColumn

public LongColumn(String name)

Creates a new LongColumn object.

Parameters:

name - the column name.

LongColumn

public LongColumn(String name,
                  int reserve)

Creates a new LongColumn object.

Parameters:

name - the column name.

reserve - the initial capacity.

Method Detail

clear

public void clear()

Description copied from class: BasicColumn

Removes all of the elements from this column. The Column will be empty after this call returns. WARNING: if there is an associated format that maintains a status, such as a CategoricalFormat, it is not cleared so results may not be what you expected. The CategoricalFormat can be cleared explicitely if needed.

Specified by:

clear in interface Column

Overrides:

clear in class LiteralColumn

See Also:

Call clear after clearing the subclass contents since this method fires the notifications.

get

public long get(int index)

Returns the element at the specified position in this column.

Parameters:

index - index of element to return.

Returns:

the element at the specified position in this column.

set

public void set(int index,
                long 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.

setExtend

public void setExtend(int index,
                      long element)

Replaces the element at the specified position in this column with the specified element, growing the column if necessary.

Parameters:

index - index of element to replace.

element - element to be stored at the specified position.

getMin

public long getMin()

getMax

public long getMax()

add

public final void add(long element)

Adds a new element in the column.

Parameters:

element - the element.

fill

public void fill(long val)

Fills the column with the specified value

Parameters:

val - the value

parse

public long 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(long v)

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

Parameters:

v - the value

Returns:

the string representation.

getValueAt

public String getValueAt(int i)

Description copied from interface: Column

Returns the String representation of the element at the specified position in this column or null if the element is undefined. The representation is generated by the current format.

Parameters:

i - index of element representation to return.

Returns:

the String representation of element at the specified position in this column or null if the element is undefined.

See Also:

Column.getValueAt(int)

setValueAt

public void setValueAt(int i,
                       String v)
                throws ParseException

Description copied from interface: Column

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.

Parameters:

i - index of element to replace.

v - element to be stored at the specified position.

Throws:

ParseException - if the specified string cannot be parsed.

See Also:

Column.setValueAt(int, String)

getColumn

public static LongColumn getColumn(Table t,
                                   int index)

Returns a column as a LongColumn from a Table.

Parameters:

t - the Table

index - index in the Table

Returns:

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

getColumn

public static LongColumn getColumn(Table t,
                                   String name)

Returns a column as a LongColumn from a Table.

Parameters:

t - the Table

name - the column name.

Returns:

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

findColumn

public static LongColumn findColumn(Table t,
                                    String name)

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

Parameters:

t - the Table

name - the column name.

Returns:

a column as a LongColumn from a table,

getValueClass

public Class getValueClass()

Description copied from class: BasicColumn

Returns the class of the elements.

Specified by:

getValueClass in interface Column

Specified by:

getValueClass in class BasicColumn

Returns:

the class of the elements.

See Also:

Column.getValueClass()

getDoubleAt

public double getDoubleAt(int row)

Description copied from class: LiteralColumn

Returns the value as a double

Specified by:

getDoubleAt in interface NumberColumn

Specified by:

getDoubleAt in class LiteralColumn

Parameters:

row - the row

Returns:

the value as a double

See Also:

NumberColumn.getDoubleAt(int)

getFloatAt

public float getFloatAt(int row)

Description copied from class: LiteralColumn

Returns the value as a float

Specified by:

getFloatAt in interface NumberColumn

Overrides:

getFloatAt in class LiteralColumn

Parameters:

row - the row

Returns:

the value as a float

See Also:

NumberColumn.getFloatAt(int)

getIntAt

public int getIntAt(int row)

Description copied from class: LiteralColumn

Returns the value as an int

Specified by:

getIntAt in interface NumberColumn

Overrides:

getIntAt in class LiteralColumn

Parameters:

row - the row

Returns:

the value as an int

See Also:

NumberColumn.getIntAt(int)

getLongAt

public long getLongAt(int row)

Description copied from class: LiteralColumn

Returns the value as a long

Specified by:

getLongAt in interface NumberColumn

Overrides:

getLongAt in class LiteralColumn

Parameters:

row - the row

Returns:

the value as a long

See Also:

NumberColumn.getLongAt(int)

setDoubleAt

public void setDoubleAt(int row,
                        double v)

Description copied from class: LiteralColumn

Sets the value as a double

Specified by:

setDoubleAt in interface NumberColumn

Specified by:

setDoubleAt in class LiteralColumn

Parameters:

row - the row

v - the value as a double

See Also:

NumberColumn.setDoubleAt(int, double)

setLongAt

public void setLongAt(int row,
                      long v)

Description copied from class: LiteralColumn

Sets the value as a long

Specified by:

setLongAt in interface NumberColumn

Overrides:

setLongAt in class LiteralColumn

Parameters:

row - the row

v - the value as a long

See Also:

NumberColumn.setLongAt(int, long)

round

public double round(double value)

Description copied from interface: NumberColumn

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

Specified by:

round in interface NumberColumn

Overrides:

round in class LiteralColumn

Parameters:

value - the value to round

Returns:

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

See Also:

NumberColumn.round(double)

format

public String format(double value)

Description copied from interface: NumberColumn

Returns the specified value formatted according to this column's format.

Parameters:

value - the value to format

Returns:

the string formatted according to this column's format.

capacity

public int capacity()

Description copied from interface: Column

Returns the current capacity of this column.

Returns:

the current capacity .

ensureCapacity

public void ensureCapacity(int minCapacity)

Description copied from interface: Column

Increases the capacity of this column, if necessary, to ensure that it can hold at least the number of values specified by the minimum capacity argument.

Parameters:

minCapacity - the desired minimum capacity.

size

public int size()

Description copied from interface: Column

Returns the number of elements in this column.

Returns:

the number of elements in this column.

setSize

public void setSize(int newSize)

Description copied from class: BasicColumn

Sets the sizeColumn of this column. If the new sizeColumn is greater than the current sizeColumn, new 0 items are added to the end of the column. If the new sizeColumn is less than the current sizeColumn, all components at index newSize and greater are discarded.

Specified by:

setSize in interface Column

Overrides:

setSize in class LiteralColumn

Parameters:

newSize - the new sizeColumn of this column.

getValueReference

public LongArrayList getValueReference()