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

java.lang.Object
  extended bycom.novell.nds.dirxml.driver.xds.Constraint
      extended bycom.novell.nds.dirxml.driver.xds.UniqueConstraint

public final class UniqueConstraint
extends Constraint

A constraint that ensures a scalar parameter's values are unique.

e.g. not['red', 'green', 'blue']


Constructor Summary
UniqueConstraint(DataType someType)
          Creates a new unique constraint instance.
UniqueConstraint(DataType someType, Comparator someComparator)
          Creates a new unique constraint instance.
 
Method Summary
 boolean canBeAppliedToMultipleParams()
          Can this constraint be applied to multiple Parameters?
 boolean equals(Object o)
          Is the passed constraint 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?
 int hashCode()
          Returns this constraint's hashcode.
 
Methods inherited from class com.novell.nds.dirxml.driver.xds.Constraint
getNOT, getOperator, getType, getTypes, toString
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

UniqueConstraint

public UniqueConstraint(DataType someType,
                        Comparator someComparator)
Creates a new unique constraint instance.

Parameters:
someType - must not be null
someComparator - may be null

UniqueConstraint

public UniqueConstraint(DataType someType)
Creates a new unique constraint instance.

Parameters:
someType - must not be null
Method Detail

hashCode

public int hashCode()
Returns this constraint's hashcode.

Returns:
the hashcode

equals

public boolean equals(Object o)
Is the passed constraint equal to this constraint?

Parameters:
o - may be null
Returns:
true if they're equal; false if they're not

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

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