org.dasein.attributes
Class DataTypeFactory.Constraint

java.lang.Object
  org.dasein.attributes.DataTypeFactory.Constraint

Enclosing class:

DataTypeFactory<V>

public static class DataTypeFactory.Constraint
extends Object

A constraint helps narrow down the set of possible values associated with the underlying data type. In general, a constraint indicates that the set of valid values for this data type is constrained by a value from another data type.

Last modified: $Date: 2009/01/30 23:01:50 $

Version:

$Revision: 1.7 $

Author:

George Reese

Constructor Summary

DataTypeFactory.Constraint(String nom, DataType<?> t)

DataTypeFactory.Constraint(String nom, DataType<?> t, boolean cmpl)
Constructs a new constraint.

Method Summary

String	getName()
DataType<?>	getType()
boolean	isComplete()
DataTypeFactory.Constraint	newConstraint(DataType<?> t) Makes a copy of this constraint with a different data type.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataTypeFactory.Constraint

public DataTypeFactory.Constraint(String nom,
                                  DataType<?> t)

DataTypeFactory.Constraint

public DataTypeFactory.Constraint(String nom,
                                  DataType<?> t,
                                  boolean cmpl)

Constructs a new constraint.

Parameters:

nom - the name identifying the constraint

t - the data type governing the constraint

Method Detail

isComplete

public boolean isComplete()

getName

public String getName()

Returns:

the name of the constraint

getType

public DataType<?> getType()

Returns:

the data type governing the constraint

newConstraint

public DataTypeFactory.Constraint newConstraint(DataType<?> t)

Makes a copy of this constraint with a different data type. When constraints are first constructed, type parameters are generally unknown. This method let's you refine the constraints as you learn more about the type info.

Parameters:

t - the new data type

Returns:

a copy of this constraint with the new data type