com.steptools.stdev
Class Model

java.lang.Object
  com.steptools.stdev.Model

public class Model
extends Object

A unit of persistence for STEP data. A model is the in-memory representation for the data in a STEP File. A model holds the EntityInstances, as well some management data.

The instances are contained in population objects. In addition, the model may contain properties which are used to annotate the in-memory representation of the data.

Constructor Summary

Model()

Model(SchemaBase sch)
Create a model with the specified schema as the default schema

Method Summary

void	addProperty(Object key, Object value) Adds a property to the model.
PopulationBase	getPopulation() Gets the default population in model.
PopulationBase	getPopulation(Object id) Gets the requested population by identifier.
Collection<PopulationBase>	getPopulations() Gets all the populations in model.
Object	getProperty(Object key) Gets the property for the specified key.
PopulationBase	newPopulation(SchemaBase sch, Object id) Creates a new population in the model.
Set	propertyKeys() Gets all the property keys.
void	removePopulation(Object id) Removes a population from the model
void	removePopulation(PopulationBase pop) Removes a population from the model.
void	removeProperty(Object key) Remove the property for the specified key.

Methods inherited from class java.lang.Object

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

Constructor Detail

Model

public Model(SchemaBase sch)

Create a model with the specified schema as the default schema

Parameters:

sch - The schema

Model

public Model()

Method Detail

newPopulation

public PopulationBase newPopulation(SchemaBase sch,
                                    Object id)
                             throws DuplicatePopulationIDException

Creates a new population in the model. The population is identified by the specified object. Generally, the identifier is a String, but it does not need to be.

Parameters:

sch - The schema for which to create a population.

id - The identifier for the newly created section.

Returns:

The newly created population.

Throws:

DuplicateSectionIDException - - When a population already exists with the given identifier

DuplicatePopulationIDException

removePopulation

public void removePopulation(PopulationBase pop)

Removes a population from the model.

Parameters:

pop - The population to remove.

removePopulation

public void removePopulation(Object id)

Removes a population from the model

Parameters:

id - The identifier for the population to remove.

getPopulations

public Collection<PopulationBase> getPopulations()

Gets all the populations in model.

Returns:

A collection of the populations in this Model.

getPopulation

public PopulationBase getPopulation()

Gets the default population in model. The default population is the one whose identifier is null. If the default population does not exist, one is created, if a default schema has been set.

Returns:

The default population.

getPopulation

public PopulationBase getPopulation(Object id)

Gets the requested population by identifier.

Parameters:

id - The identifier of the population to retreive.

Returns:

The requested population.

addProperty

public void addProperty(Object key,
                        Object value)

Adds a property to the model. Properties may implement the RemoveListener interface, in which case, they will be notified when an instance is removed from any population in the model.

Parameters:

key - The identifier for the property.

value - The object that acts as the property.

getProperty

public Object getProperty(Object key)

Gets the property for the specified key.

Parameters:

key - The identifier for the property.

Returns:

The requested population.

removeProperty

public void removeProperty(Object key)

Remove the property for the specified key.

Parameters:

key - The identifier for the property.

propertyKeys

public Set propertyKeys()

Gets all the property keys.

Returns:

the set of keys.