net.sf.bddbddb
Class Attribute

java.lang.Object
  net.sf.bddbddb.Attribute

public class Attribute
extends java.lang.Object

An Attribute represents a single attribute of a relation. Every Attribute has a name, a domain, and an optional option string. Attribute objects are globally unique --- there is exactly one Attribute object for every distinct attribute in the program.

Version:

$Id: Attribute.java 353 2004-10-27 19:21:05Z joewhaley $

Author:

jwhaley

Field Summary

protected Domain	attributeDomain Attribute domain.
protected java.lang.String	attributeName Attribute name.
protected java.lang.String	attributeOptions Attribute options.
protected Relation	relation Relation that this attribute is associated with.

Method Summary

static Attribute	fromXMLElement(org.jdom.Element e, XMLFactory f)
Domain	getDomain() Returns the domain of this attribute.
java.lang.String	getOptions() Returns the options for this attribute.
Relation	getRelation() Returns the relation that this attribute is associated with.
java.lang.String	toString()
org.jdom.Element	toXMLElement()

Methods inherited from class java.lang.Object

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

Field Detail

attributeName

protected java.lang.String attributeName

Attribute name.

attributeDomain

protected Domain attributeDomain

Attribute domain.

attributeOptions

protected java.lang.String attributeOptions

Attribute options.

relation

protected Relation relation

Relation that this attribute is associated with.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getDomain

public Domain getDomain()

Returns the domain of this attribute.

Returns:

domain

getOptions

public java.lang.String getOptions()

Returns the options for this attribute.

Returns:

options

getRelation

public Relation getRelation()

Returns the relation that this attribute is associated with.

Returns:

options

fromXMLElement

public static Attribute fromXMLElement(org.jdom.Element e,
                                       XMLFactory f)

toXMLElement

public org.jdom.Element toXMLElement()