diff options
| author | xue <> | 2006-02-24 01:07:56 +0000 |
|---|---|---|
| committer | xue <> | 2006-02-24 01:07:56 +0000 |
| commit | 8a3d7d5dd5149cca2bea77ec31a36700eb990092 (patch) | |
| tree | f33a12653d72f195fdd0ad47ed397c4c543ad691 /framework/Collections/TMap.php | |
| parent | 211f4c01bab338b7d992faa27bbde238a2004f17 (diff) | |
Added ReadOnly property to TList and TMap.
Diffstat (limited to 'framework/Collections/TMap.php')
| -rw-r--r-- | framework/Collections/TMap.php | 47 |
1 files changed, 39 insertions, 8 deletions
diff --git a/framework/Collections/TMap.php b/framework/Collections/TMap.php index 7c46ae70..df580534 100644 --- a/framework/Collections/TMap.php +++ b/framework/Collections/TMap.php @@ -44,17 +44,39 @@ class TMap extends TComponent implements IteratorAggregate,ArrayAccess * @var array internal data storage
*/
private $_d=array();
+ /**
+ * @var boolean whether this list is read-only
+ */
+ private $_r=false;
/**
* Constructor.
* Initializes the list with an array or an iterable object.
* @param array|Iterator the intial data. Default is null, meaning no initialization.
+ * @param boolean whether the list is read-only
* @throws TInvalidDataTypeException If data is not null and neither an array nor an iterator.
*/
- public function __construct($data=null)
+ public function __construct($data=null,$readOnly=false)
{
if($data!==null)
$this->copyFrom($data);
+ $this->setReadOnly($readOnly);
+ }
+
+ /**
+ * @return boolean whether this map is read-only or not. Defaults to false.
+ */
+ public function getReadOnly()
+ {
+ return $this->_r;
+ }
+
+ /**
+ * @param boolean whether this list is read-only or not
+ */
+ protected function setReadOnly($value)
+ {
+ $this->_r=TPropertyValue::ensureBoolean($value);
}
/**
@@ -99,28 +121,37 @@ class TMap extends TComponent implements IteratorAggregate,ArrayAccess * Note, if the specified key already exists, the old value will be overwritten.
* @param mixed key
* @param mixed value
+ * @throws TInvalidOperationException if the map is read-only
*/
public function add($key,$value)
{
- $this->_d[$key]=$value;
+ if(!$this->_r)
+ $this->_d[$key]=$value;
+ else
+ throw new TInvalidOperation('map_readonly');
}
/**
* Removes an item from the map by its key.
* @param mixed the key of the item to be removed
* @return mixed the removed value, null if no such key exists.
- * @throws TInvalidOperationException if the item cannot be removed
+ * @throws TInvalidOperationException if the map is read-only
*/
public function remove($key)
{
- if(isset($this->_d[$key]) || array_key_exists($key,$this->_d))
+ if(!$this->_r)
{
- $value=$this->_d[$key];
- unset($this->_d[$key]);
- return $value;
+ if(isset($this->_d[$key]) || array_key_exists($key,$this->_d))
+ {
+ $value=$this->_d[$key];
+ unset($this->_d[$key]);
+ return $value;
+ }
+ else
+ return null;
}
else
- return null;
+ throw new TInvalidOperation('map_readonly');
}
/**
|