CODEWITHSUNDEEP
javahibernatevalidationspring-mvc
SJS
SJS

Reputation: 5667

Validation error: "No validator could be found for type: java.lang.Integer"

I am working on a project with Spring why do I keep getting the following error?

javax.validation.UnexpectedTypeException:
No validator could be found for type: java.lang.Integer

Here is my code:

package com.s2rsolutions.model;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.validation.constraints.Size;

import org.hibernate.validator.constraints.NotEmpty;

@Entity
@Table(name = "sales")
public class Sales {

    @NotEmpty(message = "The above field must not be blank.")
    @Column(name = "ttl_d_sls_lst_mth", nullable = false)
    private Integer ttl_d_sls_lst_mth;

    @NotEmpty(message = "The above field must not be blank.")
    @Column(name = "ttl_d_sls_6_mth", nullable = false)
    private Integer ttl_d_sls_6_mth;

    @Column(name = "date_added")
    private Date addedDate;

    @Id
    @Column(name = "username")
    private String username;

    // other fields/getters/setters omitted for brevity

}

Upvotes: 96

Views: 235597

Answers (5)

Thamaraikannan Rajendran
Thamaraikannan Rajendran

Reputation: 137

As stated in problem, to solve this error you MUST use correct annotations. In above problem, @NotBlank or @NotEmpty annotation must be applied on any String field only.

To validate long type field, use annotation @NotNull.

Upvotes: 14

tej
tej

Reputation: 71

For this type error: UnexpectedTypeException ERROR: We are trying to use incorrect Hibernate validator annotation on any bean property. For this same issue for my Springboot project( validating type 'java.lang.Integer')

The solution that worked for me is using @NotNull for Integer.

Upvotes: 6

Nitin Jha
Nitin Jha

Reputation: 1871

As the question is asked simply use @Min(1) instead of @size on integer fields and it will work.

Upvotes: 12

spielbug
spielbug

Reputation: 1361

You can add hibernate validator dependency, to provide a Validator

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>6.0.12.Final</version>
</dependency>

Upvotes: 4

Affe
Affe

Reputation: 47954

As per the javadoc of NotEmpty, Integer is not a valid type for it to check. It's for Strings and collections. If you just want to make sure an Integer has some value, javax.validation.constraints.NotNull is all you need.

public @interface NotEmpty

Asserts that the annotated string, collection, map or array is not null or empty.

Upvotes: 238

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