@Override
public Object propertyValueOf(QualifiedName stateName) {
try {
Object json = state.getJSONObject(JSONKeys.PROPERTIES).opt(stateName.name());
if (JSONObject.NULL.equals(json)) {
return null;
} else {
PropertyDescriptor descriptor =
entityDescriptor.state().findPropertyModelByQualifiedName(stateName);
if (descriptor == null) {
return null;
}
return valueSerialization.deserialize(descriptor.valueType(), json.toString());
}
} catch (ValueSerializationException | JSONException e) {
throw new EntityStoreException(e);
}
}
/**
* Creates information about specified qualified name which represents a property.
*
* @param qName The qualified name of property.
* @param tableName The table name where the values of all instances of propertiy with this
* qualified name will be stored. May be {@code null} if it is to be decided later.
* @param propertyDescriptor {@link PropertyDescriptor} of this property.
* @return An object representing information about property with this qualified name, and how
* instances of this property are stored in database.
*/
public static QNameInfo fromProperty( //
QualifiedName qName, //
String tableName, //
PropertyDescriptor propertyDescriptor //
) {
Type vType = propertyDescriptor.type();
List<Class<?>> collectionClasses = new ArrayList<>();
while (vType instanceof ParameterizedType
&& Collection.class.isAssignableFrom((Class<?>) ((ParameterizedType) vType).getRawType())) {
collectionClasses.add((Class<?>) ((ParameterizedType) vType).getRawType());
vType = ((ParameterizedType) vType).getActualTypeArguments()[0];
}
return new QNameInfo(
qName,
QNameType.PROPERTY,
collectionClasses,
tableName,
vType,
propertyDescriptor,
null,
null);
}