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

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

public class ConstraintGroup

extends Constraint

A mechanism for grouping Parameter Constraints with logical operators (LogicalOps). The default logical operator is OR.

e.g. ( ['true', 't', 'yes', 'y'] or [1] )

Constructor Summary

ConstraintGroup()
Instantiates an empty ConstraintGroup.

Method Summary

void	add(Constraint constraint) Adds a Constraint to this constraint group.
boolean	canBeAppliedToMultipleParams() Can this constraint be applied to multiple Parameters?
boolean	equals(Object o) Is the passed object equal to this constraint?
boolean	forScalar() Can this constrait be applied to a scalar Parameter?
boolean	forStructured() Can this constraint be applied to a structured Parameter?
List	getTypes() Returns the list of DataTypes this constraint can be applied to.
int	hashCode() Returns this constraint's hashcode
void	setNOT() Negates this constraint.
void	setOperator(LogicalOp someOp) Changes this constraint groups LogicalOp to someOp.

Methods inherited from class com.novell.nds.dirxml.driver.xds.Constraint

getNOT, getOperator, getType, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstraintGroup

public ConstraintGroup()

Instantiates an empty ConstraintGroup.

Method Detail

setNOT

public void setNOT()

Negates this constraint.

forStructured

public boolean forStructured()

Description copied from class: Constraint

Can this constraint be applied to a structured Parameter?

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

Specified by:

forStructured in class Constraint

Returns:

true if it can; false if it can't

forScalar

public boolean forScalar()

Description copied from class: Constraint

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.

Specified by:

forScalar in class Constraint

Returns:

true if it can; false if it can't

setOperator

public void setOperator(LogicalOp someOp)

Changes this constraint groups LogicalOp to someOp.

e.g. (['true', 't', 'yes', 'y'] or [1])
e.g. (['true', 't', 'yes', 'y'] and [1])

Parameters:

someOp - is ignored when null

add

public void add(Constraint constraint)

Adds a Constraint to this constraint group.

Parameters:

constraint - must not be null; a constraint may only be added once

hashCode

public int hashCode()

Returns this constraint's hashcode

Returns:

the hashcode

equals

public boolean equals(Object o)

Is the passed object equal to this constraint?

Parameters:

o - may be null

Returns:

true if they're equal; false if they're not

canBeAppliedToMultipleParams

public boolean canBeAppliedToMultipleParams()

Description copied from class: Constraint

Can this constraint be applied to multiple Parameters?

Specified by:

canBeAppliedToMultipleParams in class Constraint

Returns:

true if it can; false if it can't

getTypes

public List getTypes()

Description copied from class: Constraint

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

Overrides:

getTypes in class Constraint

Returns:

a List of DataTypes; will not return null