netkit.graph
Class AttributeDiscrete

java.lang.Object
  netkit.graph.Attribute
      netkit.graph.AttributeDiscrete

public final class AttributeDiscrete
extends Attribute

This class handles attributes that are of type DISCRETE. DISCRETE types can have integer numerical values and are represented internally as java double types. This class is immutable.

Author:

Kaveh R. Ghazi

See Also:

Attributes, SchemaReader

Constructor Summary

AttributeDiscrete(java.lang.String name)
The constructor must be provided the name for this attribute.

Method Summary

java.lang.String	formatForOutput(double value) Formats the supplied value from this attribute as a String for output.
double	parseAndInsert(java.lang.String token) Parses the supplied string token for insertion into this attribute and converts the token into a double value; a "?" token results in NaN.

Methods inherited from class netkit.graph.Attribute

getName, getType, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AttributeDiscrete

public AttributeDiscrete(java.lang.String name)

The constructor must be provided the name for this attribute.

Parameters:

name - a String representing the name of this attribute.

Method Detail

parseAndInsert

public double parseAndInsert(java.lang.String token)

Parses the supplied string token for insertion into this attribute and converts the token into a double value; a "?" token results in NaN.

Specified by:

parseAndInsert in class Attribute

Parameters:

token - the string value to parse.

Returns:

the token converted into an double.

Throws:

java.lang.NumberFormatException - if the token does not contain a parsable integer.

formatForOutput

public java.lang.String formatForOutput(double value)

Description copied from class: Attribute

Formats the supplied value from this attribute as a String for output. Subclasses will supply their own mechanism for conversion.

Specified by:

formatForOutput in class Attribute

Parameters:

value - a double to be converted into an output String.

Returns:

a String representing the supplied value.