public void resolveCollectionProperty(AST expr) throws SemanticException {
String propertyName = CollectionProperties.getNormalizedPropertyName(getMethodName());
if (expr instanceof FromReferenceNode) {
FromReferenceNode collectionNode = (FromReferenceNode) expr;
// If this is 'elements' then create a new FROM element.
if (CollectionPropertyNames.COLLECTION_ELEMENTS.equals(propertyName)) {
handleElements(collectionNode, propertyName);
} else {
// Not elements(x)
fromElement = collectionNode.getFromElement();
setDataType(fromElement.getPropertyType(propertyName, propertyName));
selectColumns = fromElement.toColumns(fromElement.getTableAlias(), propertyName, inSelect);
}
if (collectionNode instanceof DotNode) {
prepareAnyImplicitJoins((DotNode) collectionNode);
}
if (!inSelect) {
fromElement.setText("");
fromElement.setUseWhereFragment(false);
}
prepareSelectColumns(selectColumns);
setText(selectColumns[0]);
setType(SqlTokenTypes.SQL_TOKEN);
} else {
throw new SemanticException(
"Unexpected expression " + expr + " found for collection function " + propertyName);
}
}
private void handleElements(FromReferenceNode collectionNode, String propertyName) {
FromElement collectionFromElement = collectionNode.getFromElement();
QueryableCollection queryableCollection = collectionFromElement.getQueryableCollection();
String path = collectionNode.getPath() + "[]." + propertyName;
log.debug("Creating elements for " + path);
fromElement = collectionFromElement;
if (!collectionFromElement.isCollectionOfValuesOrComponents()) {
getWalker().addQuerySpaces(queryableCollection.getElementPersister().getQuerySpaces());
}
setDataType(queryableCollection.getElementType());
selectColumns =
collectionFromElement.toColumns(fromElement.getTableAlias(), propertyName, inSelect);
}
