public AssignmentSpecification(AST eq, Queryable persister) {
if (eq.getType() != HqlSqlTokenTypes.EQ) {
throw new QueryException("assignment in set-clause not associated with equals");
}
this.eq = eq;
this.factory = persister.getFactory();
// Needed to bump this up to DotNode, because that is the only thing which currently
// knows about the property-ref path in the correct format; it is either this, or
// recurse over the DotNodes constructing the property path just like DotNode does
// internally
final PathSeparatorNode lhs = (PathSeparatorNode) eq.getFirstChild();
final SqlNode rhs = (SqlNode) lhs.getNextSibling();
validateLhs(lhs);
final String propertyPath = lhs.getPropertyPath();
Set<String> temp = new HashSet<String>();
// yuck!
if (persister instanceof UnionSubclassEntityPersister) {
final String[] tables = persister.getConstraintOrderedTableNameClosure();
Collections.addAll(temp, tables);
} else {
temp.add(
persister.getSubclassTableName(persister.getSubclassPropertyTableNumber(propertyPath)));
}
this.tableNames = Collections.unmodifiableSet(temp);
if (rhs == null) {
hqlParameters = new ParameterSpecification[0];
} else if (isParam(rhs)) {
hqlParameters =
new ParameterSpecification[] {((ParameterNode) rhs).getHqlParameterSpecification()};
} else {
List parameterList =
ASTUtil.collectChildren(
rhs,
new ASTUtil.IncludePredicate() {
public boolean include(AST node) {
return isParam(node);
}
});
hqlParameters = new ParameterSpecification[parameterList.size()];
Iterator itr = parameterList.iterator();
int i = 0;
while (itr.hasNext()) {
hqlParameters[i++] = ((ParameterNode) itr.next()).getHqlParameterSpecification();
}
}
}
private AST createFromElement(String text) {
AST ast =
ASTUtil.create(
fromClause.getASTFactory(),
implied
? IMPLIED_FROM
: FROM_FRAGMENT, // This causes the factory to instantiate the desired class.
text);
// Reset the node type, because the rest of the system is expecting FROM_FRAGMENT, all we wanted
// was
// for the factory to create the right sub-class. This might get reset again later on anyway to
// make the
// SQL generation simpler.
ast.setType(FROM_FRAGMENT);
return ast;
}
@Test
public void testEjb3PositionalParameters() throws Exception {
QueryTranslatorImpl qt = compile("from Animal a where a.bodyWeight = ?1");
AST ast = (AST) qt.getSqlAST();
// make certain that the ejb3-positional param got recognized as a named param
List namedParams =
ASTUtil.collectChildren(
ast,
new ASTUtil.FilterPredicate() {
public boolean exclude(AST n) {
return n.getType() != HqlSqlTokenTypes.NAMED_PARAM;
}
});
assertTrue("ejb3 positional param not recognized as a named param", namedParams.size() > 0);
}