@Override
public Predicate toPredicate(Root<Role> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
Predicate predicate = cb.conjunction();
List<Expression<Boolean>> expressions = predicate.getExpressions();
if (isNotBlank(criteria.getFilter())) {
expressions.add(
cb.or(
cb.like(
cb.lower(root.<String>get(Role_.roleName)),
wildcardsAndLower(criteria.getFilter())),
cb.like(
cb.lower(root.<String>get(Role_.roleDesc)),
wildcardsAndLower(criteria.getFilter()))));
}
if (isNotBlank(criteria.getRoleName())) {
expressions.add(
cb.like(
cb.lower(root.<String>get(Role_.roleName)),
wildcardsAndLower(criteria.getRoleName())));
}
if (isNotBlank(criteria.getRoleDesc())) {
expressions.add(
cb.like(
cb.lower(root.<String>get(Role_.roleDesc)),
wildcardsAndLower(criteria.getRoleDesc())));
}
if (null != criteria.getIsSys()) {
expressions.add(cb.equal(root.<Boolean>get(Role_.isSys), criteria.getIsSys()));
}
return predicate;
}
/*
* (non-Javadoc)
* @see com.github.dactiv.orm.core.spring.data.jpa.restriction.PredicateSingleValueSupport#build(com.github.dactiv.orm.core.PropertyFilter, com.github.dactiv.orm.core.spring.data.jpa.JpaBuilderModel)
*/
public Predicate build(PropertyFilter filter, SpecificationEntity entity) {
Object value = convertMatchValue(filter.getMatchValue(), filter.getFieldType());
Predicate predicate = null;
if (filter.hasMultiplePropertyNames()) {
Predicate orDisjunction = entity.getBuilder().disjunction();
for (String propertyName : filter.getPropertyNames()) {
orDisjunction.getExpressions().add(build(propertyName, value, entity));
}
predicate = orDisjunction;
} else {
predicate = build(filter.getSinglePropertyName(), value, entity);
}
return predicate;
}
@Override
public Predicate isFalse(Expression<Boolean> expression) {
if (CompoundPredicate.class.isInstance(expression)) {
final CompoundPredicate predicate = (CompoundPredicate) expression;
if (predicate.getExpressions().size() == 0) {
return new BooleanStaticAssertionPredicate(
this, predicate.getOperator() == Predicate.BooleanOperator.OR);
}
predicate.not();
return predicate;
} else if (Predicate.class.isInstance(expression)) {
final Predicate predicate = (Predicate) expression;
predicate.not();
return predicate;
}
return new BooleanAssertionPredicate(this, expression, Boolean.FALSE);
}
private Predicate buildCriteria(
CriteriaBuilder criteriaBuilder, Root<Product> enityRoot, Map<String, Object> params) {
String categoryName = (String) params.get("category_name");
Predicate criteria = criteriaBuilder.conjunction();
if (categoryName != null && !categoryName.isEmpty()) {
criteria
.getExpressions()
.add(
criteriaBuilder.like(
criteriaBuilder.lower(
enityRoot.join("category", JoinType.LEFT).<String>get("name")),
"%" + categoryName.toLowerCase() + "%"));
}
return criteria;
}
/**
* Create negation of compound predicate by using logic rules: 1. not (x || y) is (not x && not y)
* 2. not (x && y) is (not x || not y)
*/
@Override
public Predicate not() {
toggleOperator();
for (Expression expr : this.getExpressions()) {
if (Predicate.class.isInstance(expr)) {
((Predicate) expr).not();
}
}
return this;
}