diff options
| author | xue <> | 2006-01-21 15:16:28 +0000 |
|---|---|---|
| committer | xue <> | 2006-01-21 15:16:28 +0000 |
| commit | adb9a7864e6fce08426af0b41bbc726388e296a7 (patch) | |
| tree | 27dbe974265c776405d1a520219bd5bfc8b88882 /framework/Collections/TAttributeCollection.php | |
| parent | c5e3052cdab7d0d8d86ddd272a906e850e0bc90a (diff) | |
Diffstat (limited to 'framework/Collections/TAttributeCollection.php')
| -rw-r--r-- | framework/Collections/TAttributeCollection.php | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/framework/Collections/TAttributeCollection.php b/framework/Collections/TAttributeCollection.php new file mode 100644 index 00000000..c8870919 --- /dev/null +++ b/framework/Collections/TAttributeCollection.php @@ -0,0 +1,113 @@ +<?php
+/**
+ * TAttributeCollection classes
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Collections
+ */
+
+/**
+ * Includes TMap class
+ */
+Prado::using('System.Collections.TMap');
+
+/**
+ * TAttributeCollection class
+ *
+ * TAttributeCollection implements a collection for storing attribute names and values.
+ *
+ * Besides all functionalities provided by {@link TMap}, TAttributeCollection
+ * allows you to get and set attribute values like getting and setting
+ * properties. For example, the following usages are all valid for a
+ * TAttributeCollection object:
+ * <code>
+ * $collection->Text='text';
+ * echo $collection->Text;
+ * </code>
+ * They are equivalent to the following:
+ * <code>
+ * $collection->add('Text','text');
+ * echo $collection->itemAt('Text');
+ * </code>
+ *
+ * Note, attribute names are case-insensitive. They are converted to lower-case
+ * in the collection storage.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Collections
+ * @since 3.0
+ */
+class TAttributeCollection extends TMap
+{
+ /**
+ * Returns a property value or an event handler list by property or event name.
+ * This method overrides the parent implementation by returning
+ * a key value if the key exists in the collection.
+ * @param string the property name or the event name
+ * @return mixed the property value or the event handler list
+ * @throws TInvalidOperationException if the property/event is not defined.
+ */
+ public function __get($name)
+ {
+ $name=strtolower($name);
+ return $this->contains($name)?$this->itemAt($name):parent::__get($name);
+ }
+
+ /**
+ * Sets value of a component property.
+ * This method overrides the parent implementation by adding a new key value
+ * to the collection.
+ * @param string the property name or event name
+ * @param mixed the property value or event handler
+ * @throws TInvalidOperationException If the property is not defined or read-only.
+ */
+ public function __set($name,$value)
+ {
+ $this->add(strtolower($name),$value);
+ }
+
+ /**
+ * Determines whether a property is defined.
+ * This method overrides parent implementation by returning true
+ * if the collection contains the named key.
+ * @param string the property name
+ * @return boolean whether the property is defined
+ */
+ public function hasProperty($name)
+ {
+ $name=strtolower($name);
+ return $this->contains($name) || parent::hasProperty($name);
+ }
+
+ /**
+ * Determines whether a property can be read.
+ * This method overrides parent implementation by returning true
+ * if the collection contains the named key.
+ * @param string the property name
+ * @return boolean whether the property can be read
+ */
+ public function canGetProperty($name)
+ {
+ $name=strtolower($name);
+ return $this->contains($name) || parent::canGetProperty($name);
+ }
+
+ /**
+ * Determines whether a property can be set.
+ * This method overrides parent implementation by always returning true
+ * because you can always add a new value to the collection.
+ * @param string the property name
+ * @return boolean true
+ */
+ public function canSetProperty($name)
+ {
+ return true;
+ }
+}
+
+?>
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