com.novell.nds.dirxml.driver.xds
Class Constraint

java.lang.Object
  com.novell.nds.dirxml.driver.xds.Constraint

Direct Known Subclasses:

ConstraintGroup, DynamicEnumConstraint, EnumConstraint, MultiRequiredConstraint, MultiUniqueConstraint, MultiValueConstraint, RangeConstraint, RegExConstraint, RequiredConstraint, SingleValueConstraint, TypedEnumConstraint, UniqueConstraint

public abstract class Constraint

extends Object

Defines the set of legal values for a Parameter.

Method Summary

abstract boolean	canBeAppliedToMultipleParams() Can this constraint be applied to multiple Parameters?
abstract boolean	forScalar() Can this constrait be applied to a scalar Parameter?
abstract boolean	forStructured() Can this constraint be applied to a structured Parameter?
boolean	getNOT() Indicates whether this constraint is negated.
LogicalOp	getOperator() Returns the LogicalOp of this constraint.
DataType	getType() Returns the first DataType supported by this constraint.
List	getTypes() Returns the list of DataTypes this constraint can be applied to.
String	toString() Returns a string representation of this contraint.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getTypes

public List getTypes()

Returns the list of DataTypes this constraint can be applied to.

Returns:

a List of DataTypes; will not return null

getType

public DataType getType()

Returns the first DataType supported by this constraint.

Returns:

will not return null

getNOT

public boolean getNOT()

Indicates whether this constraint is negated. For example, !(true).

Returns:

true if it is; false if it isn't

toString

public String toString()

Returns a string representation of this contraint.

Returns:

a set representation of this constraints legal values (e.g. ['one', 'two', 'three']).

getOperator

public LogicalOp getOperator()

Returns the LogicalOp of this constraint. If this constraint represents multiple constraints, then they may be joined by a logical operator such as AND or OR.

Returns:

will not return null

forStructured

public abstract boolean forStructured()

Can this constraint be applied to a structured Parameter?

A structured Parameter consists of multiple primitives or other structured Parameters.

Returns:

true if it can; false if it can't

forScalar

public abstract boolean forScalar()

Can this constrait be applied to a scalar Parameter?

A scalar Parmeter is a primitive (e.g., long, int, boolean) that has a single value.

Returns:

true if it can; false if it can't

canBeAppliedToMultipleParams

public abstract boolean canBeAppliedToMultipleParams()

Can this constraint be applied to multiple Parameters?

Returns:

true if it can; false if it can't