Re: QuerySpec to find all childs by parent

The next code seems to be appropriate:

Parent parentInstance = some given parent

QuerySpec querySpec = new QuerySpec();

int parentIndex = querySpec.appendClassList(Parent.class, false);

int linkIndex = querySpec.appendClassList(ParentChildLink.class, false);

int childIndex = querySpec.appendClassList(Child.class, false);

querySpec.appendSelect(new ClassAttribute(Child.class, Child.NAME), new int[]{childIndex}, true);

querySpec.appendJoin(linkIndex, ParentChildLink.CHILD_ROLE, childIndex);

querySpec.appendJoin(linkIndex, ParentChildLink.PARENT_ROLE, parentIndex);

CompositeWhereExpression whereExpression = new CompositeWhereExpression(LogicalOperator.AND);

whereExpression.append(new SearchCondition(Parent.class, Parent.NAME, SearchCondition.EQUAL, parentInstance.getName()), new int[]{0});

querySpec.appendWhere(whereExpression, new int[]{0});

But:

1) I need to get child objects, not some of their fields.

2) I specified parent name in where clause, the field of parent class i declared myself. Does windchill provide any unique field by default that would be more appropriate?