@Override
public From clone() {
From clone = new From(this.parser, this.id);
if (getClauses() != null) clone.setClauses(cloneList(getClauses()));
return clone;
}
private QueryCommand buildSubquery(Expression projected) {
Criteria criteria = null;
for (ForeignKey fk : this.childTable.getForeignKeys()) {
if (fk.getPrimaryKey().getParent().equals(this.parent)) {
List<String> refColumns = fk.getReferenceColumns();
if (refColumns == null) {
refColumns = ODataSQLBuilder.getColumnNames(childTable.getPrimaryKey().getColumns());
}
List<String> pkColumns =
ODataSQLBuilder.getColumnNames(parent.getPrimaryKey().getColumns());
List<Criteria> critList = new ArrayList<Criteria>();
for (int i = 0; i < refColumns.size(); i++) {
critList.add(
new CompareCriteria(
new ElementSymbol(pkColumns.get(i), this.parentGroup),
CompareCriteria.EQ,
new ElementSymbol(refColumns.get(i), this.childGroup)));
}
criteria = critList.get(0);
for (int i = 1; i < critList.size(); i++) {
criteria = new CompoundCriteria(CompoundCriteria.AND, criteria, critList.get(i));
}
}
}
Select s1 = new Select();
s1.addSymbol(projected);
From f1 = new From();
f1.addGroup(this.childGroup);
Query q1 = new Query();
q1.setSelect(s1);
q1.setFrom(f1);
q1.setCriteria(criteria);
return q1;
}
@Override
public void visit(From obj) {
preVisitVisitor(obj);
visitNodes(obj.getClauses());
postVisitVisitor(obj);
}
