if, elseif, else

Syntax

[#if condition]
    body
[#elseif condition2]
    body
[#elseif condition3]
    body
[#else]
    body
[/#if]

where:

• condition: an MQL expression that evaluates to a boolean value.
• body: any set of text template statements.

Description

The if, elseif and else directives conditionally skip a section of the template. The conditions must evaluate to a boolean value. The elseif and else directives must occur inside if (that is, between the if start-tag and end-tag). The if can contain any number of elseif (or none at all) and at the end an optional else.

Examples

This code will output a text only if the UML class is abstract :

[#if myClass.isAbstract]
    the class is abstract
[/#if]

This code will output a text only if the UML class has some features :

[#if ! myClass.feature.isEmpty()]
    the class has at least one feature
[/#if]

This code will output a different text regarding the number of features of a UML class :

[#set size = myClass.feature.size()]
[#if size == 0]
    the class has no feature
[#elseif size == 1]
    the class has one feature
[#else]
    the class has more than one feature
[/#if]