public void add()

in grails-datastore-gorm-hibernate/src/main/groovy/org/grails/orm/hibernate/query/AbstractHibernateQuery.java [155:228]
67 lines of code
15 McCabe index (conditional complexity)

    public void add(Criterion criterion) {
        if (criterion instanceof FunctionCallingCriterion) {
            org.hibernate.criterion.Criterion sqlRestriction = getRestrictionForFunctionCall((FunctionCallingCriterion) criterion, getEntity());
            if (sqlRestriction != null) {
                addToCriteria(sqlRestriction);
            }
        }
        else if (criterion instanceof PropertyCriterion) {
            PropertyCriterion pc = (PropertyCriterion) criterion;
            Object value = pc.getValue();
            if (value instanceof QueryableCriteria) {
                setDetachedCriteriaValue((QueryableCriteria) value, pc);
            } else {
                if (!(value instanceof DetachedCriteria)) {
                    doTypeConversionIfNeccessary(getEntity(), pc);
                }
            }
        }
        if (criterion instanceof DetachedAssociationCriteria) {
            DetachedAssociationCriteria associationCriteria = (DetachedAssociationCriteria) criterion;

            Association association = associationCriteria.getAssociation();
            List<Query.Criterion> criteria = associationCriteria.getCriteria();

            if(association instanceof Embedded) {
                String associationName = association.getName();
                if (getCurrentAlias() != null) {
                    associationName = getCurrentAlias() + '.' + associationName;
                }
                for (Criterion c : criteria) {
                    final org.hibernate.criterion.Criterion hibernateCriterion = getHibernateCriterionAdapter().toHibernateCriterion(this, c, associationName);
                    if (hibernateCriterion != null) {
                        addToCriteria(hibernateCriterion);
                    }
                }
            }
            else {

                CriteriaAndAlias criteriaAndAlias = getCriteriaAndAlias(associationCriteria);

                if(criteriaAndAlias.criteria != null) {
                    aliasInstanceStack.add(criteriaAndAlias.criteria);
                }
                else if(criteriaAndAlias.detachedCriteria != null) {
                    aliasInstanceStack.add(criteriaAndAlias.detachedCriteria);
                }
                aliasStack.add(criteriaAndAlias.alias);
                associationStack.add(association);
                entityStack.add(association.getAssociatedEntity());

                try {
                    @SuppressWarnings("unchecked")
                    List<Criterion> associationCriteriaList = criteria;
                    for (Criterion c : associationCriteriaList) {
                        add(c);
                    }
                }
                finally {
                    aliasInstanceStack.removeLast();
                    aliasStack.removeLast();
                    entityStack.removeLast();
                    associationStack.removeLast();
                }
            }

        }
        else {

            final org.hibernate.criterion.Criterion hibernateCriterion = getHibernateCriterionAdapter().toHibernateCriterion(this, criterion, getCurrentAlias());
            if (hibernateCriterion != null) {
                addToCriteria(hibernateCriterion);
            }
        }
    }