com.mysema.query.types.Path Java Examples

public Page<Permission> findAllByRoleId(Integer id, Pageable pageable) {
    QRole role = QRole.role;
    Predicate predicate = role.id.eq(id);

    PathBuilder<Permission> builder = new PathBuilder<Permission>(Permission.class, QPermission.permission.getMetadata());
    Querydsl querydsl = new Querydsl(em, builder);

    JPQLQuery countQuery = createQuery(predicate);
    JPQLQuery query = querydsl.applyPagination(pageable, createQuery(predicate));

    Path<Permission> path = QPermission.permission;
    Long total = countQuery.count();
    List<Permission> content = total > pageable.getOffset() ? query.list(path) : Collections.<Permission>emptyList();

    return new PageImpl<Permission>(content, pageable, total);
}
 

private Expression<?> buildOrderPropertyPathFrom(Sort.Order order) {
    Assert.notNull(order, "Order must not be null!");

    PropertyPath path = PropertyPath.from(order.getProperty(), builder.getType());
    Expression<?> sortPropertyExpression = builder;

    while (path != null) {
        if (!path.hasNext() && order.isIgnoreCase()) {
            // if order is ignore-case we have to treat the last path segment as a String.
            sortPropertyExpression = Expressions.stringPath((Path<?>) sortPropertyExpression, path.getSegment()).lower();
        } else {
            sortPropertyExpression = Expressions.path(path.getType(), (Path<?>) sortPropertyExpression, path.getSegment());
        }

        path = path.next();
    }

    return sortPropertyExpression;
}
 

public Page<Permission> findAllByRoleId(Integer id, Pageable pageable) {
    QRole role = QRole.role;
    Predicate predicate = role.id.eq(id);

    PathBuilder<Permission> builder = new PathBuilder<Permission>(Permission.class, QPermission.permission.getMetadata());
    Querydsl querydsl = new Querydsl(em, builder);

    JPQLQuery countQuery = createQuery(predicate);
    JPQLQuery query = querydsl.applyPagination(pageable, createQuery(predicate));

    Path<Permission> path = QPermission.permission;
    Long total = countQuery.count();
    List<Permission> content = total > pageable.getOffset() ? query.list(path) : Collections.<Permission>emptyList();

    return new PageImpl<Permission>(content, pageable, total);
}
 

private Expression<?> buildOrderPropertyPathFrom(Sort.Order order) {
    Assert.notNull(order, "Order must not be null!");

    PropertyPath path = PropertyPath.from(order.getProperty(), builder.getType());
    Expression<?> sortPropertyExpression = builder;

    while (path != null) {
        if (!path.hasNext() && order.isIgnoreCase()) {
            // if order is ignore-case we have to treat the last path segment as a String.
            sortPropertyExpression = Expressions.stringPath((Path<?>) sortPropertyExpression, path.getSegment()).lower();
        } else {
            sortPropertyExpression = Expressions.path(path.getType(), (Path<?>) sortPropertyExpression, path.getSegment());
        }

        path = path.next();
    }

    return sortPropertyExpression;
}
 

private static String getName(Expression<?> expression) {
	if (expression instanceof Path<?>) {
		@SuppressWarnings("rawtypes")
		PathMetadata<?> metadata = ((Path) expression).getMetadata();
		if (metadata.getPathType() == PathType.PROPERTY) {
			return metadata.getElement().toString();
		} else {
			throw new MappingException("Unexpected expression " + expression);
		}
	}  else {
		throw new MappingException("Unexpected expression " + expression);
	}
}
 

public Page<Employee> findAll(Pageable pageable) {
    Predicate predicate = QEmployee.employee.name.startsWith("e");

    PathBuilder<Employee> builder = new PathBuilder<>(Employee.class, QEmployee.employee.getMetadata());
    Querydsl querydsl = new Querydsl(entityManager, builder);

    JPQLQuery countQuery = createQuery(predicate);
    JPQLQuery query = querydsl.applyPagination(pageable, createQuery(predicate));

    Path<Employee> path = QEmployee.employee;
    Long total = countQuery.count();

    List<Employee> content = total > pageable.getOffset() ? query.list(path) : Collections.<Employee>emptyList();

    return new PageImpl<>(content, pageable, total);
}
 

public QTestDbObject(Path<? extends QTestDbObject> entity) {
    super(entity.getType(), entity.getMetadata(), "PUBLIC", "TEST_DB_OBJECT");
}
 

@SuppressWarnings("all")
public QContact(Path<? extends QContact> path) {
    super((Class)path.getType(), path.getMetadata(), "null", "contact");
}
 

@SuppressWarnings("all")
public QAddress(Path<? extends QAddress> path) {
    super((Class)path.getType(), path.getMetadata(), "null", "address");
}
 

@SuppressWarnings("all")
public QEmployee(Path<? extends QEmployee> path) {
    super((Class)path.getType(), path.getMetadata(), "null", "employee");
}
 

@SuppressWarnings("all")
public QCustomer(Path<? extends QCustomer> path) {
    super((Class)path.getType(), path.getMetadata(), "null", "customer");
}