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Diffstat (limited to 'framework/Data/SqlMap/Configuration/TDiscriminator.php')
| -rw-r--r-- | framework/Data/SqlMap/Configuration/TDiscriminator.php | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/framework/Data/SqlMap/Configuration/TDiscriminator.php b/framework/Data/SqlMap/Configuration/TDiscriminator.php new file mode 100644 index 00000000..cf77c10b --- /dev/null +++ b/framework/Data/SqlMap/Configuration/TDiscriminator.php @@ -0,0 +1,233 @@ +<?php
+/**
+ * TDiscriminator and TSubMap classes file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005-2007 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Id$
+ * @package System.Data.SqlMap.Configuration
+ */
+
+/**
+ * The TDiscriminator corresponds to the <discriminator> tag within a <resultMap>.
+ *
+ * TDiscriminator allows inheritance logic in SqlMap result mappings.
+ * SqlMap compares the data found in the discriminator column to the different
+ * <submap> values using the column value's string equivalence. When the string values
+ * matches a particular <submap>, SqlMap will use the <resultMap> defined by
+ * {@link resultMapping TSubMap::setResultMapping()} property for loading
+ * the object data.
+ *
+ * @author Wei Zhuo <weizho[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Data.SqlMap.Configuration
+ * @since 3.1
+ */
+class TDiscriminator extends TComponent
+{
+ private $_column;
+ private $_type;
+ private $_typeHandler=null;
+ private $_columnIndex;
+ private $_nullValue;
+ private $_mapping;
+ private $_resultMaps=array();
+ private $_subMaps=array();
+
+ /**
+ * @return string the name of the column in the result set from which the
+ * value will be used to populate the property.
+ */
+ public function getColumn()
+ {
+ return $this->_column;
+ }
+
+ /**
+ * @param string the name of the column in the result set from which the
+ * value will be used to populate the property.
+ */
+ public function setColumn($value)
+ {
+ $this->_column = $value;
+ }
+
+ /**
+ * @param string property type of the parameter to be set.
+ */
+ public function getType()
+ {
+ return $this->_type;
+ }
+
+ /**
+ * The type attribute is used to explicitly specify the property type of the
+ * parameter to be set. If the attribute type is not set and the framework
+ * cannot otherwise determine the type, the type is assumed from the default
+ * value of the property.
+ * @return string property type of the parameter to be set.
+ */
+ public function setType($value)
+ {
+ $this->_type = $value;
+ }
+
+ /**
+ * @return string custom type handler class name (may use namespace).
+ */
+ public function getTypeHandler()
+ {
+ return $this->_typeHandler;
+ }
+
+ /**
+ * @param string custom type handler class name (may use namespace).
+ */
+ public function setTypeHandler($value)
+ {
+ $this->_typeHandler = $value;
+ }
+
+ /**
+ * @return int index of the column in the ResultSet
+ */
+ public function getColumnIndex()
+ {
+ return $this->_columnIndex;
+ }
+
+ /**
+ * The columnIndex attribute value is the index of the column in the
+ * ResultSet from which the value will be used to populate the object property.
+ * @param int index of the column in the ResultSet
+ */
+ public function setColumnIndex($value)
+ {
+ $this->_columnIndex = TPropertyValue::ensureInteger($value);
+ }
+
+ /**
+ * @return mixed outgoing null value replacement.
+ */
+ public function getNullValue()
+ {
+ return $this->_nullValue;
+ }
+
+ /**
+ * @param mixed outgoing null value replacement.
+ */
+ public function setNullValue($value)
+ {
+ $this->_nullValue = $value;
+ }
+
+ /**
+ * @return TResultProperty result property for the discriminator column.
+ */
+ public function getMapping()
+ {
+ return $this->_mapping;
+ }
+
+ /**
+ * @param TSubMap add new sub mapping.
+ */
+ public function addSubMap($subMap)
+ {
+ $this->_subMaps[] = $subMap;
+ }
+
+ /**
+ * @param string database value
+ * @return TResultMap result mapping.
+ */
+ public function getSubMap($value)
+ {
+ if(isset($this->_resultMaps[$value]))
+ return $this->_resultMaps[$value];
+ }
+
+ /**
+ * Copies the discriminator properties to a new TResultProperty.
+ * @param TResultMap result map holding the discriminator.
+ */
+ public function initMapping($resultMap)
+ {
+ $this->_mapping = new TResultProperty($resultMap);
+ $this->_mapping->setColumn($this->getColumn());
+ $this->_mapping->setColumnIndex($this->getColumnIndex());
+ $this->_mapping->setType($this->getType());
+ $this->_mapping->setTypeHandler($this->getTypeHandler());
+ $this->_mapping->setNullValue($this->getNullValue());
+ }
+
+ /**
+ * Set the result maps for particular sub-mapping values.
+ * @param TSqlMapManager sql map manager instance.
+ */
+ public function initialize($manager)
+ {
+ foreach($this->_subMaps as $subMap)
+ {
+ $this->_resultMaps[$subMap->getValue()] =
+ $manager->getResultMap($subMap->getResultMapping());
+ }
+ }
+}
+
+/**
+ * TSubMap class defines a submapping value and the corresponding <resultMap>
+ *
+ * The {@link Value setValue()} property is used for comparison with the
+ * discriminator column value. When the {@link Value setValue()} matches
+ * that of the discriminator column value, the corresponding {@link ResultMapping setResultMapping}
+ * is used inplace of the current result map.
+ *
+ * @author Wei Zhuo <weizho[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Data.SqlMap.Configuration
+ * @since 3.1
+ */
+class TSubMap extends TComponent
+{
+ private $_value;
+ private $_resultMapping;
+
+ /**
+ * @return string value for comparison with discriminator column value.
+ */
+ public function getValue()
+ {
+ return $this->_value;
+ }
+
+ /**
+ * @param string value for comparison with discriminator column value.
+ */
+ public function setValue($value)
+ {
+ $this->_value = $value;
+ }
+
+ /**
+ * The result map to use when the Value matches the discriminator column value.
+ * @return string ID of a result map
+ */
+ public function getResultMapping()
+ {
+ return $this->_resultMapping;
+ }
+
+ /**
+ * @param string ID of a result map
+ */
+ public function setResultMapping($value)
+ {
+ $this->_resultMapping = $value;
+ }
+}
+
+?>
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