How to optimize Thymeleaf utility calls from html?

user_1194415 0
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I have a thymeleaf html page that shows all rows from a database @Entity.

Problem: the entity has a complex field that is mapped with a hibernate AttributeConverter. When I want to show the field as String in html, I have to call that converter to onvert the complex field to a string representation, like:

<td th:text="${{T(org.exmaple.domain.utils.AddressConverter).convertToString(row?.address)}}" />

With source:

//assume I have the address only in this format
public class AddressConverter<Address, String> {
    public String convertToString(Address address) {
        if (address == null) return null;
        return address.getZip() + " " + address.getTown();
    }
}

Question: how can I optimize those utility imports in thymeleaf? I'm looking for something simple like:

<td th:text="${{addressUtil.convertToString(row?.address)}}" />
thymeleaf java
2 Answers

Let's go backward, starting from your requirements. The following is something you would like to have in your Thymeleaf template ...

<td th:text="${addressConverter.convertToString(row?.address)}" />

To call addressConverter 's function convertToString like this, you would need to have the object available in your model. Basically in your controller have a static variable ...

private static final AddressConverter addressConverter = new AddressConverter();

And after add it to the model ...

model.addAttribute("addressConverter", addressConverter);
user_2324670

I just found out that spring beans can simply be accessed with the @ parameter, like:

<div th:text="${@addressConverter.convertToString()}">...</div>

Of course this assumes it's not a static utility.

If anybody knows how to better expose a static utility to thymeleaf, please answer.

user_11944150
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