com.steptools.stdev

Class SelectionBase

java.lang.Object

com.steptools.stdev.SelectionBase

public abstract class SelectionBase
extends Object

Represents one of the possible types of an EXPRESS SELECT type. This class serves as both an enumeration identfying the type of an EXPRESS select, and also as the accessor to manipulate instances of that type.

In the generated EXPRESS classes, there is one instance of SelectionBase for each underlying type of the SELECT. Each class that represents a SELECT contains a nested class named Selection which is a subtype of this class. The class defines a static final member of type Selection for each choice.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SelectionBase(Class cls, String[] p)

Method Summary

Methods

Modifier and Type	Method and Description
SelectDomain	getOwner() Get the SelectDomain that this selection belopngs to.
List<String>	getPath() Get the type path for this selection
Object	getValue(Select inst) Retreive the value from a Select that matches this selection.
Select	newInstance(Object value) Creates a Select of the type identified by this Selection
Domain	slotDomain() Get the underlying domain for this selection

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectionBase

protected SelectionBase(Class cls,
             String[] p)

Method Detail

getOwner

public SelectDomain getOwner()

Get the SelectDomain that this selection belopngs to.

Returns:

The owning domain.

getPath

public List<String> getPath()

Get the type path for this selection

slotDomain

public Domain slotDomain()
                  throws SchemaStructureException

Get the underlying domain for this selection

Throws:

SchemaStructureException - Malformes schema classes

getValue

public Object getValue(Select inst)
                throws SchemaStructureException,
                       SelectTypeException

Retreive the value from a Select that matches this selection. This is a late-bound accessor function. The preferred way for early-bound application to get the value is to call the getType method on the Select instance.

Parameters:

inst - The SELECT instance to get the value from.

Returns:

The requested value. If is is an double or int it will be wrapped in a java.lang.Double or java.lang.Integer wrapper class.

Throws:

SchemaStructureException - Malformed schema classes.

SelectTypeException - The select is not of the type identified by this selection.

newInstance

public Select newInstance(Object value)
                   throws SchemaStructureException,
                          TypeException

Creates a Select of the type identified by this Selection

Parameters:

value - The value the select is to have. If this in an int or double, it must be wrapped in a java.lang.Integer, or java.lang.Double wrapper.

Returns:

The new select instances.

Throws:

TypeException - if value cannot be cast to the type of the selection.

SchemaStructureException