| 메소드 | 설명 | |
|---|---|---|
| getExpression ( ) : string | Returns the expression | |
| getValue ( ) : mixed | Returns the value | |
| hasValue ( ) : boolean | Checks whether a value or expression is set | |
| isExpression ( ) : boolean | Returns whether an expression is set | |
| setExpression ( string $expr ) | Sets an expression | |
| setValue ( mixed $value ) | Sets the value | |
| unsetExpression ( ) | Unsets the expression | |
| unsetValue ( ) | Unsets the value |
| public isExpression ( ) : boolean | ||
| 리턴 | boolean | |
