Velocity string function

Question

I just start using Java Velocity. Now I want to create a java class template.

package $app.package_namespace
public class ${app.name}Station

{
    #foreac         


        

Answer 1

There is capitalize() method in DisplayTool:

get${display.capitalize($s_attribute.name)}()

Answer 2

You can invoke standard java methods on these objects. If s_attribute.name is type String you can directly use $s_attribute.name.toUpperCase() or for your specific case use $s_attribute.name.substring(0,1).toUpperCase() and $s_attribute.name.substring(1).toLowerCase()

Answer 3

You could just create 2 methods getName() and getname() then when you use ${s_attribute.name} velocity will use getname() and when you use ${s_attribute.Name} velocity will use the getName() method.

From the Velocity guide:

Property Lookup Rules

As was mentioned earlier, properties often refer to methods of the parent object. Velocity is quite clever when figuring out which method corresponds to a requested property. It tries out different alternatives based on several established naming conventions. The exact lookup sequence depends on whether or not the property name starts with an upper-case letter. For lower-case names, such as $customer.address, the sequence is

getaddress()
getAddress()
get("address")
isAddress()

For upper-case property names like $customer.Address, it is slightly different:

getAddress()
getaddress()
get("Address")
isAddress()

What i'm suggesting is that you handle it in your object on the backend.

Answer 4

If you are using commons-lang you can use the StringUtils class:

context.put("StringUtils", org.apache.commons.lang3.StringUtils.class);

Then in your template:

...
return  get$StringUtils.capitalize(s_attribute.name)();
...