<?php
class AttrProperty {
	/** the possible values for attribute attribute property */
	const AP_GET   = 1; // get
	const AP_SET   = 2; // set
	const AP_LIST  = 3; // list attribute
	const AP_REL   = 4; // relationship attribute
	const AP_BOOL  = 5; // boolean attribute
	const AP_INT   = 6; // integer value
	const AP_FLOAT = 7; // floating point
	const AP_INIT  = 9; // initial value
	const AP_DEF   = 10; // default value
	const AP_MEQU  = 11; // matching for equality (in filter items)
	const AP_MORD  = 12; // matching for ordering (in filter items)
	
	private $value;
	
	public function AttrProperty($val) {
		if (self::AP_GET <= $val && $val <= self::AP_MORD)
			$this->value = $val;
		else
			throw new Exception("Invalid AttrProperty creation: $val");
	}
	
	public function getValue() {
		return $this->value;
	}
}