@Override
public AssociationKey getAssociationKey() {
final AssociationType type = getType();
if (type.isAnyType()) {
return new AssociationKey(
JoinHelper.getLHSTableName(type, attributeNumber(), (OuterJoinLoadable) getSource()),
JoinHelper.getLHSColumnNames(
type, attributeNumber(), 0, (OuterJoinLoadable) getSource(), sessionFactory()));
}
final Joinable joinable = type.getAssociatedJoinable(sessionFactory());
if (type.getForeignKeyDirection() == ForeignKeyDirection.FOREIGN_KEY_FROM_PARENT) {
final String lhsTableName;
final String[] lhsColumnNames;
if (joinable.isCollection()) {
final QueryableCollection collectionPersister = (QueryableCollection) joinable;
lhsTableName = collectionPersister.getTableName();
lhsColumnNames = collectionPersister.getElementColumnNames();
} else {
final OuterJoinLoadable entityPersister = (OuterJoinLoadable) source();
lhsTableName = getLHSTableName(type, attributeNumber(), entityPersister);
lhsColumnNames =
getLHSColumnNames(type, attributeNumber(), entityPersister, sessionFactory());
}
return new AssociationKey(lhsTableName, lhsColumnNames);
} else {
return new AssociationKey(joinable.getTableName(), getRHSColumnNames(type, sessionFactory()));
}
}
public OuterJoinableAssociation(
PropertyPath propertyPath,
AssociationType joinableType,
String lhsAlias,
String[] lhsColumns,
String rhsAlias,
JoinType joinType,
String withClause,
boolean hasRestriction,
SessionFactoryImplementor factory,
Map enabledFilters)
throws MappingException {
this.propertyPath = propertyPath;
this.joinableType = joinableType;
this.lhsAlias = lhsAlias;
this.lhsColumns = lhsColumns;
this.rhsAlias = rhsAlias;
this.joinType = joinType;
this.joinable = joinableType.getAssociatedJoinable(factory);
this.rhsColumns = JoinHelper.getRHSColumnNames(joinableType, factory);
this.on =
joinableType.getOnCondition(rhsAlias, factory, enabledFilters)
+ (withClause == null || withClause.trim().length() == 0
? ""
: " and ( " + withClause + " )");
this.hasRestriction = hasRestriction;
this.enabledFilters = enabledFilters; // needed later for many-to-many/filter application
}
/** Used to detect circularities in the joined graph, note that this method is side-effecty */
protected boolean isDuplicateAssociation(
final String lhsTable, final String[] lhsColumnNames, final AssociationType type) {
final String foreignKeyTable;
final String[] foreignKeyColumns;
if (type.getForeignKeyDirection() == ForeignKeyDirection.FOREIGN_KEY_FROM_PARENT) {
foreignKeyTable = lhsTable;
foreignKeyColumns = lhsColumnNames;
} else {
foreignKeyTable = type.getAssociatedJoinable(getFactory()).getTableName();
foreignKeyColumns = JoinHelper.getRHSColumnNames(type, getFactory());
}
return isDuplicateAssociation(foreignKeyTable, foreignKeyColumns);
}
private CriteriaInfoProvider getPathInfo(String path) {
StringTokenizer tokens = new StringTokenizer(path, ".");
String componentPath = "";
// start with the 'rootProvider'
CriteriaInfoProvider provider = nameCriteriaInfoMap.get(rootEntityName);
while (tokens.hasMoreTokens()) {
componentPath += tokens.nextToken();
Type type = provider.getType(componentPath);
if (type.isAssociationType()) {
// CollectionTypes are always also AssociationTypes - but there's not always an associated
// entity...
AssociationType atype = (AssociationType) type;
CollectionType ctype = type.isCollectionType() ? (CollectionType) type : null;
Type elementType = (ctype != null) ? ctype.getElementType(sessionFactory) : null;
// is the association a collection of components or value-types? (i.e a colloction of valued
// types?)
if (ctype != null && elementType.isComponentType()) {
provider =
new ComponentCollectionCriteriaInfoProvider(
helper.getCollectionPersister(ctype.getRole()));
} else if (ctype != null && !elementType.isEntityType()) {
provider = new ScalarCollectionCriteriaInfoProvider(helper, ctype.getRole());
} else {
provider =
new EntityCriteriaInfoProvider(
(Queryable)
sessionFactory.getEntityPersister(
atype.getAssociatedEntityName(sessionFactory)));
}
componentPath = "";
} else if (type.isComponentType()) {
if (!tokens.hasMoreTokens()) {
throw new QueryException(
"Criteria objects cannot be created directly on components. Create a criteria on owning entity and use a dotted property to access component property: "
+ path);
} else {
componentPath += '.';
}
} else {
throw new QueryException("not an association: " + componentPath);
}
}
return provider;
}
private boolean isOneToOne() {
if (joinableType.isEntityType()) {
EntityType etype = (EntityType) joinableType;
return etype.isOneToOne() /*&& etype.isReferenceToPrimaryKey()*/;
} else {
return false;
}
}
public String selectFragment(
Joinable rhs,
String rhsAlias,
String lhsAlias,
String entitySuffix,
String collectionSuffix,
boolean includeCollectionColumns) {
// we need to determine the best way to know that two joinables
// represent a single many-to-many...
if (rhs != null && isManyToMany() && !rhs.isCollection()) {
AssociationType elementType = ((AssociationType) getElementType());
if (rhs.equals(elementType.getAssociatedJoinable(getFactory()))) {
return manyToManySelectFragment(rhs, rhsAlias, lhsAlias, collectionSuffix);
}
}
return includeCollectionColumns ? selectFragment(lhsAlias, collectionSuffix) : "";
}
protected void initPropertyPaths(
final String path,
final Type type,
String[] columns,
final String[] formulaTemplates,
final Mapping factory)
throws MappingException {
if (columns.length != type.getColumnSpan(factory)) {
throw new MappingException("broken column mapping for: " + path + " of: " + getEntityName());
}
if (type.isAssociationType()) {
AssociationType actype = (AssociationType) type;
if (actype.useLHSPrimaryKey()) {
columns = getIdentifierColumnNames();
} else {
String foreignKeyProperty = actype.getLHSPropertyName();
if (foreignKeyProperty != null && !path.equals(foreignKeyProperty)) {
// TODO: this requires that the collection is defined after the
// referenced property in the mapping file (ok?)
columns = (String[]) columnsByPropertyPath.get(foreignKeyProperty);
if (columns == null) return; // get em on the second pass!
}
}
}
if (path != null) addPropertyPath(path, type, columns, formulaTemplates);
if (type.isComponentType()) {
AbstractComponentType actype = (AbstractComponentType) type;
initComponentPropertyPaths(path, actype, columns, formulaTemplates, factory);
if (actype.isEmbedded()) {
initComponentPropertyPaths(
path == null ? null : StringHelper.qualifier(path),
actype,
columns,
formulaTemplates,
factory);
}
} else if (type.isEntityType()) {
initIdentifierPropertyPaths(path, (EntityType) type, columns, factory);
}
}
/**
* Does the mapping, and Hibernate default semantics, specify that this association should be
* fetched by outer joining
*/
protected boolean isJoinedFetchEnabledInMapping(FetchMode config, AssociationType type)
throws MappingException {
if (!type.isEntityType() && !type.isCollectionType()) {
return false;
} else {
if (config == FetchMode.JOIN) return true;
if (config == FetchMode.SELECT) return false;
if (type.isEntityType()) {
// TODO: look at the owning property and check that it
// isn't lazy (by instrumentation)
EntityType entityType = (EntityType) type;
EntityPersister persister =
getFactory().getEntityPersister(entityType.getAssociatedEntityName());
return !persister.hasProxy();
} else {
return false;
}
}
}
private String getPathEntityName(String path) {
Queryable persister = (Queryable) sessionFactory.getEntityPersister(rootEntityName);
StringTokenizer tokens = new StringTokenizer(path, ".");
String componentPath = "";
while (tokens.hasMoreTokens()) {
componentPath += tokens.nextToken();
Type type = persister.toType(componentPath);
if (type.isAssociationType()) {
AssociationType atype = (AssociationType) type;
persister =
(Queryable)
sessionFactory.getEntityPersister(atype.getAssociatedEntityName(sessionFactory));
componentPath = "";
} else if (type.isComponentType()) {
componentPath += '.';
} else {
throw new QueryException("not an association: " + componentPath);
}
}
return persister.getEntityName();
}
protected void setRelatedClassType(
GrailsHibernateDomainClassProperty prop, AssociationType assType, Type hibernateType) {
try {
String associatedEntity =
assType.getAssociatedEntityName((SessionFactoryImplementor) getSessionFactory());
ClassMetadata associatedMetaData = getSessionFactory().getClassMetadata(associatedEntity);
prop.setRelatedClassType(associatedMetaData.getMappedClass(EntityMode.POJO));
} catch (MappingException me) {
// other side must be a value object
if (hibernateType.isCollectionType()) {
prop.setRelatedClassType(Collection.class);
}
}
}
/**
* Add on association (one-to-one, many-to-one, or a collection) to a list of associations to be
* fetched by outerjoin
*/
private void addAssociationToJoinTree(
final AssociationType type,
final String[] aliasedLhsColumns,
final String alias,
final PropertyPath path,
final int currentDepth,
final JoinType joinType)
throws MappingException {
Joinable joinable = type.getAssociatedJoinable(getFactory());
// important to generate alias based on size of association collection
// *before* adding this join to that collection
String subalias = generateTableAlias(associations.size() + 1, path, joinable);
// NOTE : it should be fine to continue to pass only filters below
// (instead of LoadQueryInfluencers) since "from that point on" we
// only need to worry about restrictions (and not say adding more
// joins)
OuterJoinableAssociation assoc =
new OuterJoinableAssociation(
path,
type,
alias,
aliasedLhsColumns,
subalias,
joinType,
getWithClause(path),
hasRestriction(path),
getFactory(),
loadQueryInfluencers.getEnabledFilters());
assoc.validateJoin(path.getFullPath());
associations.add(assoc);
int nextDepth = currentDepth + 1;
// path = "";
if (!joinable.isCollection()) {
if (joinable instanceof OuterJoinLoadable) {
walkEntityTree((OuterJoinLoadable) joinable, subalias, path, nextDepth);
}
} else {
if (joinable instanceof QueryableCollection) {
walkCollectionTree((QueryableCollection) joinable, subalias, path, nextDepth);
}
}
}
/**
* Determine the appropriate associationType of join (if any) to use to fetch the given
* association.
*
* @param associationType The association associationType.
* @param config The metadata-defined fetch mode.
* @param path The path to the association
* @param lhsTable The owner table
* @param lhsColumns The owner join columns
* @param nullable Is the association nullable.
* @param currentDepth Current join depth
* @param cascadeStyle The metadata-defined cascade style.
* @return type of join to use ({@link org.hibernate.sql.JoinType#INNER_JOIN}, {@link
* org.hibernate.sql.JoinType#LEFT_OUTER_JOIN}, or -1 to indicate no joining.
* @throws MappingException ??
*/
protected JoinType getJoinType(
AssociationType associationType,
FetchMode config,
PropertyPath path,
String lhsTable,
String[] lhsColumns,
boolean nullable,
int currentDepth,
CascadeStyle cascadeStyle)
throws MappingException {
if (!isJoinedFetchEnabled(associationType, config, cascadeStyle)) {
return JoinType.NONE;
}
if (isTooDeep(currentDepth) || (associationType.isCollectionType() && isTooManyCollections())) {
return JoinType.NONE;
}
if (isDuplicateAssociation(lhsTable, lhsColumns, associationType)) {
return JoinType.NONE;
}
return getJoinType(nullable, currentDepth);
}
// $Id: CascadeEntityJoinWalker.java,v 1.1 2005/07/26 05:51:47 oneovthafew Exp $
public boolean isCollection() {
return joinableType.isCollectionType();
}
public String getRHSUniqueKeyName() {
return joinableType.getRHSUniqueKeyPropertyName();
}
/** Override on subclasses to enable or suppress joining of certain association types */
protected boolean isJoinedFetchEnabled(
AssociationType type, FetchMode config, CascadeStyle cascadeStyle) {
return type.isEntityType() && isJoinedFetchEnabledInMapping(config, type);
}
protected JoinType getJoinType(
OuterJoinLoadable persister,
final PropertyPath path,
int propertyNumber,
AssociationType associationType,
FetchMode metadataFetchMode,
CascadeStyle metadataCascadeStyle,
String lhsTable,
String[] lhsColumns,
final boolean nullable,
final int currentDepth)
throws MappingException {
final JoinType resolvedJoinType;
if (translator.isJoin(path.getFullPath())) {
resolvedJoinType = translator.getJoinType(path.getFullPath());
} else {
if (translator.hasProjection()) {
resolvedJoinType = JoinType.NONE;
} else {
FetchMode fetchMode = translator.getRootCriteria().getFetchMode(path.getFullPath());
if (isDefaultFetchMode(fetchMode)) {
if (persister != null) {
if (isJoinFetchEnabledByProfile(persister, path, propertyNumber)) {
if (isDuplicateAssociation(lhsTable, lhsColumns, associationType)) {
resolvedJoinType = JoinType.NONE;
} else if (isTooDeep(currentDepth)
|| (associationType.isCollectionType() && isTooManyCollections())) {
resolvedJoinType = JoinType.NONE;
} else {
resolvedJoinType = getJoinType(nullable, currentDepth);
}
} else {
resolvedJoinType =
super.getJoinType(
persister,
path,
propertyNumber,
associationType,
metadataFetchMode,
metadataCascadeStyle,
lhsTable,
lhsColumns,
nullable,
currentDepth);
}
} else {
resolvedJoinType =
super.getJoinType(
associationType,
metadataFetchMode,
path,
lhsTable,
lhsColumns,
nullable,
currentDepth,
metadataCascadeStyle);
}
} else {
if (fetchMode == FetchMode.JOIN) {
isDuplicateAssociation(
lhsTable, lhsColumns, associationType); // deliberately ignore return value!
resolvedJoinType = getJoinType(nullable, currentDepth);
} else {
resolvedJoinType = JoinType.NONE;
}
}
}
}
return resolvedJoinType;
}
@Override
protected Class getClassForAssociationType(AssociationType type) {
String otherSideEntityName =
type.getAssociatedEntityName((SessionFactoryImplementor) sessionFactory);
return sessionFactory.getClassMetadata(otherSideEntityName).getMappedClass(EntityMode.POJO);
}
