uk.ac.ic.doc.automed.modelmanagement.modelgen
Class HDMToEER

java.lang.Object
  uk.ac.ic.doc.automed.modelmanagement.modelgen.HDMToEER

public class HDMToEER
extends java.lang.Object

A class to do HDM to ER model transformations

Author:

Andrew Charles Smith - acs203

Field Summary

private java.util.ArrayList	allConstraintObjects
private java.util.ArrayList	allEdgeObjects
private java.util.ArrayList	allNodeObjects
private Construct	attribute
private java.util.Hashtable	attributeEdges
private java.util.Hashtable	attributeNodes
private Construct	cons
private Construct	edge
private Model	eer
private Construct	entity
private Construct	entityOrRelationship
private java.util.Hashtable	extents
private Construct	generalisation
private Model	hdm
private TypeHierarchy	hlth
private Construct	node
private java.util.Hashtable	parentObjects
private Construct	relationship
private java.util.ArrayList	rootNodeObjects
private Schema	sourceSchema
private Construct	subset

Constructor Summary

HDMToEER(Schema s1)
Creates a new instance of HDMToEER

Method Summary

private Schema	addAttribute(Schema transformedSchema, SchemaObject parentObject, SchemaObject hdmChild, SchemaObject edgeSchemaObject) Add an attribute
private Schema	addEntity(Schema transformedSchema, SchemaObject hdmObject) Add a ER entity to Automed
private void	addHDMObjectsToHashTables() Add all the HDM objects to the appropriate hash entities
private Schema	addRelationship(Schema s, SchemaObject hdmEdgeObject) Add a relationship
private Schema	addSubset(Schema s, SchemaObject hdmConstraintObject) Add a subset
private java.lang.String	computeCardinality(Schema transformedSchema, SchemaObject hdmEdgeObject)
private SchemaObject	findEntity(Schema s, SchemaObject hdmNode) Find an enity associated with this node
Schema	modelGen(TransformModel am) Transform the HDM elements in this schema into relational elements
private Schema	removeEdgeObject(Schema s, SchemaObject edgeObject) Recusively removes any HDM edges from the schema
private Schema	removeHDMConstructs(Schema transformedSchema) Remove the HDM constructs from the transformed schema
void	setSchema(Schema s) Set the schema to transform
private void	setUpEERModel() Set up the relational model, the constructs and the type hierarchy

Methods inherited from class java.lang.Object

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

Field Detail

hdm

private Model hdm

node

private Construct node

cons

private Construct cons

edge

private Construct edge

eer

private Model eer

entity

private Construct entity

entityOrRelationship

private Construct entityOrRelationship

attribute

private Construct attribute

relationship

private Construct relationship

generalisation

private Construct generalisation

subset

private Construct subset

sourceSchema

private Schema sourceSchema

hlth

private TypeHierarchy hlth

allEdgeObjects

private java.util.ArrayList allEdgeObjects

allConstraintObjects

private java.util.ArrayList allConstraintObjects

allNodeObjects

private java.util.ArrayList allNodeObjects

rootNodeObjects

private java.util.ArrayList rootNodeObjects

extents

private java.util.Hashtable extents

parentObjects

private java.util.Hashtable parentObjects

attributeNodes

private java.util.Hashtable attributeNodes

attributeEdges

private java.util.Hashtable attributeEdges

Constructor Detail

HDMToEER

public HDMToEER(Schema s1)
         throws NotFoundException

Creates a new instance of HDMToEER

Parameters:

s1 - The schema to transform

Throws:

NotFoundException - Throws an exception if constrcuts are not found

Method Detail

setSchema

public void setSchema(Schema s)

Set the schema to transform

Parameters:

s - The schema to transform

addHDMObjectsToHashTables

private void addHDMObjectsToHashTables()
                                throws AutoMedException

Add all the HDM objects to the appropriate hash entities

Throws:

AutoMedException

removeEdgeObject

private Schema removeEdgeObject(Schema s,
                                SchemaObject edgeObject)
                         throws AutoMedException

Recusively removes any HDM edges from the schema

Parameters:

s - the schema we wish to remove the HDM edges from

Returns:

A schema with no HDM edges

Throws:

AutoMedException

removeHDMConstructs

private Schema removeHDMConstructs(Schema transformedSchema)
                            throws AutoMedException

Remove the HDM constructs from the transformed schema

Throws:

AutoMedException

addEntity

private Schema addEntity(Schema transformedSchema,
                         SchemaObject hdmObject)
                  throws IntegrityException,
                         TypeMismatchException,
                         NotFoundException

Add a ER entity to Automed

Throws:

IntegrityException

TypeMismatchException

NotFoundException

addAttribute

private Schema addAttribute(Schema transformedSchema,
                            SchemaObject parentObject,
                            SchemaObject hdmChild,
                            SchemaObject edgeSchemaObject)
                     throws TypeMismatchException,
                            NotFoundException,
                            IntegrityException

Add an attribute

Throws:

TypeMismatchException

NotFoundException

IntegrityException

computeCardinality

private java.lang.String computeCardinality(Schema transformedSchema,
                                            SchemaObject hdmEdgeObject)

findEntity

private SchemaObject findEntity(Schema s,
                                SchemaObject hdmNode)
                         throws AutoMedException

Find an enity associated with this node

Parameters:

hdmNode - - the HDM node

Returns:

the entity object

Throws:

AutoMedException

addRelationship

private Schema addRelationship(Schema s,
                               SchemaObject hdmEdgeObject)
                        throws AutoMedException

Add a relationship

Throws:

AutoMedException

addSubset

private Schema addSubset(Schema s,
                         SchemaObject hdmConstraintObject)
                  throws AutoMedException

Add a subset

Throws:

AutoMedException

setUpEERModel

private void setUpEERModel()
                    throws NotFoundException

Set up the relational model, the constructs and the type hierarchy

Throws:

NotFoundException

modelGen

public Schema modelGen(TransformModel am)
                throws AutoMedException

Transform the HDM elements in this schema into relational elements

Parameters:

sourceModel -

targetModel -

am -

Returns:

Returns the relational schema

Throws:

AutoMedException - General AutoMedException