netkit.graph
Class AttributeFixedCategorical

java.lang.Object
  netkit.graph.Attribute
      netkit.graph.AttributeCategorical
          netkit.graph.AttributeFixedCategorical

public final class AttributeFixedCategorical
extends AttributeCategorical

This class handles attributes that are of type CATEGORICAL. CATEGORICAL types can have values from a set of tokens specified by the tokenSet. The set of valid tokens is fixed at the time this container is created. This class is immutable.

Author:

Kaveh R. Ghazi

See Also:

Attributes, FixedTokenSet, SchemaReader

Field Summary

Fields inherited from class netkit.graph.AttributeCategorical

tokenSet

Constructor Summary

AttributeFixedCategorical(java.lang.String name, FixedTokenSet tokenSet)
The constructor must be provided the name of this attribute and the set of valid categorical token values.

Method Summary

double

parseAndInsert(java.lang.String token) Parses the supplied string token for insertion into this attribute and converts the token into a double value; if the token is "?", that results in NaN.

Methods inherited from class netkit.graph.AttributeCategorical

formatForOutput, getToken, getTokens, getValue, size

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

AttributeFixedCategorical

public AttributeFixedCategorical(java.lang.String name,
                                 FixedTokenSet tokenSet)

The constructor must be provided the name of this attribute and the set of valid categorical token values.

Parameters:

name - a String representing the name of this attribute.

tokenSet - a set representing the valid categorical token values for 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; if the token is "?", that 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.RuntimeException - if the token is not already in the set of valid tokens.