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<?php
/**
* File containing the ezcConsoleOptionRule class.
*
* @package ConsoleTools
* @version 1.6.1
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
* @filesource
*/
/**
* Struct class to store a parameter rule.
*
* This struct stores relation rules between parameters. A relation consists of
* a parameter that the relation refers to and optionally the value(s) the
* referred parameter may have assigned. Rules may be used for dependencies and
* exclusions between parameters.
*
* The ezcConsoleOptionRule class has the following properties:
* - <b>option</b> <i>ezcConsoleOption</i>, contains the parameter that this rule refers to.
* - <b>values</b> <i>array(string)</i>, contains a list of values that are accepted.
*
* @see ezcConsoleOption
*
* @package ConsoleTools
* @version 1.6.1
*/
class ezcConsoleOptionRule
{
/**
* Properties.
*
* @var array
*/
protected $properties = array(
'option' => null,
'values' => array(),
'ifSet' => true
);
/**
* Creates a new option rule.
*
* Creates a new option rule. Per default the $values parameter
* is an empty array, which determines that the option may accept any
* value. To indicate that a option may only have certain values,
* place them inside tha $values array. For example to indicate an option
* may have the values 'a', 'b' and 'c' use:
*
* <code>
* $rule = new ezcConsoleOptionRule( $option, array( 'a', 'b', 'c' ) );
* </code>
*
* If you want to allow only 1 specific value for an option, you do not
* need to wrap this into an array, when creating the rule. Simply use
*
* <code>
* $rule = new ezcConsoleOptionRule( $option, 'a' );
* </code>
*
* to create a rule, that allows the desired option only to accept the
* value 'a'.
*
* The $ifSet parameter determines, if the rule is validated when its option
* is set or left out. If $ifSet is true, the rule is validated when the
* option is set. Otherwise the rule is validated if the option was not set
* by the user.
*
* @param ezcConsoleOption $option The option to refer to.
* @param mixed $values The affected values.
* @param bool $ifSet
*/
public function __construct( ezcConsoleOption $option, array $values = array(), $ifSet = true )
{
$this->__set( 'option', $option );
$this->__set( 'values', $values );
$this->__set( 'ifSet', $ifSet );
}
/**
* Property read access.
*
* @throws ezcBasePropertyNotFoundException
* If the the desired property is not found.
*
* @param string $propertyName Name of the property.
* @return mixed Value of the property or null.
* @ignore
*/
public function __get( $propertyName )
{
switch ( $propertyName )
{
case 'option':
return $this->properties['option'];
case 'values':
return $this->properties['values'];
case 'ifSet':
return $this->properties['ifSet'];
}
throw new ezcBasePropertyNotFoundException( $propertyName );
}
/**
* Property write access.
*
* @param string $propertyName Name of the property.
* @param mixed $propertyValue The value for the property.
*
* @throws ezcBasePropertyPermissionException
* If the property you try to access is read-only.
* @throws ezcBasePropertyNotFoundException
* If the the desired property is not found.
* @ignore
*/
public function __set( $propertyName, $propertyValue )
{
switch ( $propertyName )
{
case 'option':
if ( !( $propertyValue instanceof ezcConsoleOption ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'ezcConsoleOption' );
}
$this->properties['option'] = $propertyValue;
return;
case 'values':
if ( !is_array( $propertyValue ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'array' );
}
$this->properties['values'] = $propertyValue;
return;
case 'ifSet':
if ( !is_bool( $propertyValue ) )
{
throw new ezcBaseValueException( $propertyName, $propertyValue, 'bool' );
}
$this->properties['ifSet'] = $propertyValue;
return;
}
throw new ezcBasePropertyNotFoundException( $propertyName );
}
/**
* Property isset access.
*
* @param string $propertyName Name of the property to check.
* @return bool If the property exists or not.
* @ignore
*/
public function __isset( $propertyName )
{
switch ( $propertyName )
{
case 'option':
case 'values':
case 'ifSet':
return true;
}
return false;
}
}
?>
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