net.fortuna.ical4j.util

Class PropertyValidator

java.lang.Object

net.fortuna.ical4j.util.PropertyValidator

public final class PropertyValidator
extends java.lang.Object

$Id$ [15-May-2004] Defines methods for validating properties and property lists.

Author:

Ben Fortuna

Method Summary

Methods

Modifier and Type	Method and Description
void	assertNone(java.lang.String propertyName, PropertyList properties) Ensure a property doesn't occur in the specified list.
void	assertOne(java.lang.String propertyName, PropertyList properties) Ensure a property occurs once.
void	assertOneOrLess(java.lang.String propertyName, PropertyList properties) Ensure a property occurs no more than once.
void	assertOneOrMore(java.lang.String propertyName, PropertyList properties) Ensure a property occurs at least once.
static PropertyValidator	getInstance()

Methods inherited from class java.lang.Object

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

Method Detail

assertOneOrLess

public void assertOneOrLess(java.lang.String propertyName,
                   PropertyList properties)
                     throws ValidationException

Ensure a property occurs no more than once.

Parameters:

propertyName - the property name

properties - a list of properties to query

Throws:

ValidationException - when the specified property occurs more than once

assertOneOrMore

public void assertOneOrMore(java.lang.String propertyName,
                   PropertyList properties)
                     throws ValidationException

Ensure a property occurs at least once.

Parameters:

propertyName - the property name

properties - a list of properties to query

Throws:

ValidationException - when the specified property occurs more than once

assertOne

public void assertOne(java.lang.String propertyName,
             PropertyList properties)
               throws ValidationException

Ensure a property occurs once.

Parameters:

propertyName - the property name

properties - a list of properties to query

Throws:

ValidationException - when the specified property does not occur once

assertNone

public void assertNone(java.lang.String propertyName,
              PropertyList properties)
                throws ValidationException

Ensure a property doesn't occur in the specified list.

Parameters:

propertyName - the name of a property

properties - a list of properties

Throws:

ValidationException - thrown when the specified property is found in the list of properties

getInstance

public static PropertyValidator getInstance()

Returns:

Returns the instance.