de.jstacs.parameters.validation
Class SimpleReferenceConstraint

java.lang.Object
  de.jstacs.parameters.validation.ReferenceConstraint
      de.jstacs.parameters.validation.SimpleReferenceConstraint

All Implemented Interfaces:

Constraint, Storable, Cloneable

public class SimpleReferenceConstraint
extends ReferenceConstraint

Class for a ReferenceConstraint that checks for "simple" conditions as defined in the Constraint-interface.

Author:

Jan Grau

Field Summary

Fields inherited from class de.jstacs.parameters.validation.ReferenceConstraint

constraintParameter, errorMessage

Fields inherited from interface de.jstacs.parameters.validation.Constraint

EQUALS, GEQ, GT, LEQ, LT

Constructor Summary

SimpleReferenceConstraint(SimpleParameter constraintParameter, int comparisonOperator)
Creates a new SimpleReferenceConstraint from a reference SimpleParameter and a comparison operator, which is one of the values defined in the Constraint-interface.

SimpleReferenceConstraint(StringBuffer representation)
Creates a new SimpleReferenceConstraint from its XML-representation.

Method Summary

boolean	check(Object value) Checks value for the constraint defined in the Constraint.
SimpleReferenceConstraint	clone() This method returns a deep copy of the current instance.
void	fromXML(StringBuffer representation) Parses a ReferenceConstraint from the XML-representation as returned by ReferenceConstraint.toXML().
StringBuffer	toXML() This method returns an XML-representation of an instance of the implementing class.

Methods inherited from class de.jstacs.parameters.validation.ReferenceConstraint

fillWithStandardFieldForClone, getErrorMessage

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleReferenceConstraint

public SimpleReferenceConstraint(SimpleParameter constraintParameter,
                                 int comparisonOperator)

Creates a new SimpleReferenceConstraint from a reference SimpleParameter and a comparison operator, which is one of the values defined in the Constraint-interface.

Parameters:

constraintParameter - the reference

comparisonOperator - the operator

SimpleReferenceConstraint

public SimpleReferenceConstraint(StringBuffer representation)
                          throws NonParsableException

Creates a new SimpleReferenceConstraint from its XML-representation.

Parameters:

representation - the XML-representation

Throws:

NonParsableException - is thrown if representation could not be parsed

Method Detail

clone

public SimpleReferenceConstraint clone()
                                throws CloneNotSupportedException

Description copied from interface: Constraint

This method returns a deep copy of the current instance.

Specified by:

clone in interface Constraint

Specified by:

clone in class ReferenceConstraint

Returns:

a deep copy

Throws:

CloneNotSupportedException - if the Constraint could not be cloned

See Also:

Cloneable

check

public boolean check(Object value)

Description copied from interface: Constraint

Checks value for the constraint defined in the Constraint. Is the constraint is fulfilled, true is returned.

Specified by:

check in interface Constraint

Specified by:

check in class ReferenceConstraint

Parameters:

value - the value to be checked

Returns:

if the constraint is fulfilled

toXML

public StringBuffer toXML()

Description copied from interface: Storable

This method returns an XML-representation of an instance of the implementing class.

Specified by:

toXML in interface Storable

Overrides:

toXML in class ReferenceConstraint

Returns:

the XML-representation

fromXML

public void fromXML(StringBuffer representation)
             throws NonParsableException

Description copied from class: ReferenceConstraint

Parses a ReferenceConstraint from the XML-representation as returned by ReferenceConstraint.toXML().

Overrides:

fromXML in class ReferenceConstraint

Parameters:

representation - the XML-representation

Throws:

NonParsableException - thrown if the XML-code could not be parsed