package com.avaje.ebeaninternal.server.deploy;
import java.util.Map;
import javax.persistence.PersistenceException;
import com.avaje.ebeaninternal.server.deploy.meta.DeployBeanPropertyAssocOne;
/**
* Creates BeanProperties for Embedded beans that have deployment information
* such as the actual DB column name and table alias.
*/
public class BeanEmbeddedMetaFactory {
/**
* Create BeanProperties for embedded beans using the deployment specific DB column name and table alias.
*/
public static BeanEmbeddedMeta create(BeanDescriptorMap owner, DeployBeanPropertyAssocOne<?> prop,
BeanDescriptor<?> descriptor) {
// we can get a BeanDescriptor for an Embedded bean
// and know that it is NOT recursive, as Embedded beans are
// only allow to hold simple scalar types...
BeanDescriptor<?> targetDesc = owner.getBeanDescriptor(prop.getTargetType());
if (targetDesc == null){
String msg = "Could not find BeanDescriptor for "+prop.getTargetType()
+". Perhaps the EmbeddedId class is not registered?";
throw new PersistenceException(msg);
}
// deployment override information (column names)
Map<String, String> propColMap = prop.getDeployEmbedded().getPropertyColumnMap();
BeanProperty[] sourceProperties = targetDesc.propertiesBaseScalar();
BeanProperty[] embeddedProperties = new BeanProperty[sourceProperties.length];
for (int i = 0; i < sourceProperties.length; i++) {
String propertyName = sourceProperties[i].getName();
String dbColumn = propColMap.get(propertyName);
if (dbColumn == null) {
// dbColumn not overridden so take original
dbColumn = sourceProperties[i].getDbColumn();
}
BeanPropertyOverride overrides = new BeanPropertyOverride(dbColumn);
embeddedProperties[i] = new BeanProperty(sourceProperties[i], overrides);
}
return new BeanEmbeddedMeta(embeddedProperties);
}
}