private void addJoinNodes(QueryNode query, JoinSequence join, FromElement fromElement) {
JoinFragment joinFragment =
join.toJoinFragment(
walker.getEnabledFilters(),
fromElement.useFromFragment()
|| fromElement.isDereferencedBySuperclassOrSubclassProperty(),
fromElement.getWithClauseFragment(),
fromElement.getWithClauseJoinAlias());
String frag = joinFragment.toFromFragmentString();
String whereFrag = joinFragment.toWhereFragmentString();
// If the from element represents a JOIN_FRAGMENT and it is
// a theta-style join, convert its type from JOIN_FRAGMENT
// to FROM_FRAGMENT
if (fromElement.getType() == JOIN_FRAGMENT
&& (join.isThetaStyle() || StringHelper.isNotEmpty(whereFrag))) {
fromElement.setType(FROM_FRAGMENT);
fromElement
.getJoinSequence()
.setUseThetaStyle(true); // this is used during SqlGenerator processing
}
// If there is a FROM fragment and the FROM element is an explicit, then add the from part.
if (fromElement.useFromFragment() /*&& StringHelper.isNotEmpty( frag )*/) {
String fromFragment = processFromFragment(frag, join).trim();
LOG.debugf("Using FROM fragment [%s]", fromFragment);
processDynamicFilterParameters(fromFragment, fromElement, walker);
}
syntheticAndFactory.addWhereFragment(joinFragment, whereFrag, query, fromElement, walker);
}
private void addJoin(JoinSequence joinSequence, QueryTranslatorImpl q) throws QueryException {
// JoinFragment fromClause = q.createJoinFragment(true);
// fromClause.addJoins( join.toJoinFragment().toFromFragmentString(), StringHelper.EMPTY_STRING
// );
q.addFromJoinOnly(pathExpressionParser.getName(), joinSequence);
try {
addToCurrentJoin(
joinSequence.toJoinFragment(q.getEnabledFilters(), true).toWhereFragmentString());
} catch (MappingException me) {
throw new QueryException(me);
}
}
private void mergeJoins(JoinFragment ojf) throws MappingException, QueryException {
Iterator iter = joins.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry me = (Map.Entry) iter.next();
String name = (String) me.getKey();
JoinSequence join = (JoinSequence) me.getValue();
join.setSelector(
new JoinSequence.Selector() {
public boolean includeSubclasses(String alias) {
boolean include = returnedTypes.contains(alias) && !isShallowQuery();
return include;
}
});
if (typeMap.containsKey(name)) {
ojf.addFragment(join.toJoinFragment(enabledFilters, true));
} else if (collections.containsKey(name)) {
ojf.addFragment(join.toJoinFragment(enabledFilters, true));
} else {
// name from a super query (a bit inelegant that it shows up here)
}
}
}
public static String createCollectionSubquery(
JoinSequence joinSequence, Map enabledFilters, String[] columns) {
try {
JoinFragment join = joinSequence.toJoinFragment(enabledFilters, true);
return new StringBuilder("select ")
.append(StringHelper.join(", ", columns))
.append(" from ")
.append(join.toFromFragmentString().substring(2)) // remove initial ", "
.append(" where ")
.append(join.toWhereFragmentString().substring(5)) // remove initial " and "
.toString();
} catch (MappingException me) {
throw new QueryException(me);
}
}
public void token(String token, QueryTranslatorImpl q) throws QueryException {
if (token != null) path.append(token);
String alias = q.getPathAlias(path.toString());
if (alias != null) {
reset(q); // reset the dotcount (but not the path)
currentName = alias; // after reset!
currentPropertyMapping = q.getPropertyMapping(currentName);
if (!ignoreInitialJoin) {
JoinSequence ojf = q.getPathJoin(path.toString());
try {
joinSequence.addCondition(
ojf.toJoinFragment(q.getEnabledFilters(), true)
.toWhereFragmentString()); // after reset!
} catch (MappingException me) {
throw new QueryException(me);
}
// we don't need to worry about any condition in the ON clause
// here (toFromFragmentString), since anything in the ON condition
// is already applied to the whole query
}
} else if (".".equals(token)) {
dotcount++;
} else {
if (dotcount == 0) {
if (!continuation) {
if (!q.isName(token)) throw new QueryException("undefined alias: " + token);
currentName = token;
currentPropertyMapping = q.getPropertyMapping(currentName);
}
} else if (dotcount == 1) {
if (currentName != null) {
currentProperty = token;
} else if (collectionName != null) {
// processCollectionProperty(token, q.getCollectionPersister(collectionRole),
// collectionName);
continuation = false;
} else {
throw new QueryException("unexpected");
}
} else { // dotcount>=2
// Do the corresponding RHS
Type propertyType = getPropertyType();
if (propertyType == null) {
throw new QueryException("unresolved property: " + path);
}
if (propertyType.isComponentType()) {
dereferenceComponent(token);
} else if (propertyType.isEntityType()) {
if (!isCollectionValued()) dereferenceEntity(token, (EntityType) propertyType, q);
} else if (propertyType.isCollectionType()) {
dereferenceCollection(token, ((CollectionType) propertyType).getRole(), q);
} else {
if (token != null) throw new QueryException("dereferenced: " + path);
}
}
}
}
