Custom error message from entity class

Question

How can I create a custom message for the errors that accour in the field annotation?

@Size(max = 10)

or

@Column(name = "NAME"  , length = 10)

Now I see a message

CustomerDetailsForm:customerName: Validation Error: Length is greater than allowable maximum of ''10'' .

How can I change this message?

BalusC · Accepted Answer · 2011-12-27 14:59:29Z

2

Use the message attribute of the bean validation annotation.

@Size(max=10, message="May not be more than 10 characters.")

To internationalize it, supply ValidationMessages.properties bundle files in the desired locales and use the {} to specify the bundle key, e.g:

@Size(max=10, message="{validation.max_size}")

Alternatively, you can also just use maxlength on the <h:inputText> field so that the enduser already won't be able to enter too much characters.

<h:inputText ... maxlength="10" />

answered Dec 27, 2011 at 14:59

BalusC

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13 Comments

user590586 Over a year ago

thank's! I want to internationalize it like you said.. what do you mean with ValidationMessages.properties bundle files? do I need to create ValidationMessages.properties?

user590586 Over a year ago

do i need to define ValidationMessages.properties inside something? and when i call it's message it should be "{validation.max_size}" ? thank's again.

BalusC Over a year ago

Just put the files in the root of the classpath. The properties can be just validation.max_size = May not be more than 10 characters. The key and value is fully free to your choice. The {} just indicate that the message should be looked up from the bundle by the specified key.

user590586 Over a year ago

'Just put the files in the root of the classpath' - you mean the ValidationMessages.properties file right? are there any more files that should be added? I will try it now, thank's!

BalusC Over a year ago

One file per locale. E.g. ValidaitonMessages_en.properties, ValidationMessages_de.properties, etc. See the ResourceBundle javadoc. It's not different from all other "usual" resource bundle approaches. If you don't need localized messages or want a default locale, you can also just supply alone ValidationMessages.properties.

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