SizeValidatorForCharSequence -Primefaces Chips Web Component

marcel.vieira · **Joined:** Tue May 30, 2017 1:17 pm **Posts:** 1

Hi!

I've made the question below in https://forum.primefaces.org/viewtopic.php?f=3&t=51091, and the Primefaces Core Developer Thomas Andraschko give me a hint to try getting answers here ("Try to ask the hibernate validator guys. It seems like it uses getter and the property and those types doesn't match").

Well, I have a CRUD and I want to change the inputTexArea:

Code:

<p:inputTextarea id="tags" value="#{myController.selected.tags}" />

To the new Primefaces <b>chips</b> component:

Code:

<p:chips id="tags" value="#{myController.selected.tags}" />

An entity class excerpt:

Code:

@Lob
@Size(max = 2147483647)
@Column(name = "tags")
private String tags;
//GETTER AND SETTER OMITTED

The get method works fine, since the tags are displayed in the field as expected:

Code:

public List<String> getTags() {
return Arrays.asList(tags.split(","));
}

But the set method is not, because when I click on Save, occurs an Exception:

Code:

public void setTags(List<String> tags) {
this.tags = String.join(",", tags);
}
//excerpt of the Exception:
java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.CharSequence
at org.hibernate.validator.internal.constraintvalidators.SizeValidatorForCharSequence.isValid(SizeValidatorForCharSequence.java:33)
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:281)

Can you guys, please, help me?

Thanks in advance.

vlad · **Posted:** Tue May 30, 2017 2:00 pm

I moved the topic to the Validator forum.

sanne.grinovero · **Posted:** Mon Jun 05, 2017 8:44 am

Hi Marcel,

the annotations are defined on the field so Validator is expecting to validate the Java type of the field, which is a String.

Getters and setters should match the same type (so return a String and accept a String, not a a List):
- http://beanvalidation.org/1.1/spec/#con ... quirements

Even so, seems like Hibernate Validator should have used field access in your example.
Please share the version of Hibernate Validator you're using, to see if we need to create a new bug in our issue tracker.