/**
* Generates portion of the query for attribute JOIN
*
* @param sql already existing portion of the SQL, presumed to have at least SELECT and FROM
* clauses.
* @param attributes list of attribute constraints for the capability with #capabilityAlias
* @param capabilityAlias alias of the capability to which these attribute constraints belong
*/
private void processAttributesJoin(
SQL sql, List<Attribute<?>> attributes, String capabilityAlias) {
String attributeAlias;
for (int j = 0; j < attributes.size(); j++) {
attributeAlias = createAttributeAlias(capabilityAlias, j);
sql.INNER_JOIN(
"capability_attribute "
+ attributeAlias
+ " ON "
+ attributeAlias
+ ".capability_id = "
+ capabilityAlias
+ ".capability_id");
}
}
/**
* Generates portion of the query for subcapability JOIN
*
* @param sql already existing portion of the SQL, presumed to have at least SELECT and FROM
* clauses.
* @param filter filter for the particular subcapability
* @param parentCapabilityAlias alias of the subcapability's parent in the #sql query
*/
private void processSubCapabilitiesJoin(
SQL sql, CapabilityFilter filter, String parentCapabilityAlias) {
String subAlias;
CapabilityFilter subFilter;
for (int k = 0; k < filter.getSubFilters().size(); k++) {
subFilter = filter.getSubFilters().get(k);
subAlias = parentCapabilityAlias + k;
sql.INNER_JOIN(
"capability "
+ subAlias
+ " ON "
+ parentCapabilityAlias
+ ".capability_id = "
+ subAlias
+ ".parent_capability_id");
processAttributesJoin(sql, subFilter.getAttributes(), subAlias);
processSubCapabilitiesJoin(sql, subFilter, subAlias);
}
}