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Java Local Development Environments Advanced Tooling Code Generation

Brendan Whiting
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Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 Points

What language is this template code?

At 4:04 in the video we see template code in a different language with lots of '#' and '$'. What is that and why do they use it?

public java.lang.String toString() {
#if ( $members.size() > 0 )
#set ( $i = 0 )
    return "$classname{" +
#foreach( $member in $members )
#if ( $i == 0 )
    "##
#else
    ", ##
#end
#if ( $member.objectArray )
#if ($java_version < 5)
$member.name=" + ($member.accessor == null ? null : java.util.Arrays.asList($member.accessor)) +
#else
$member.name=" + java.util.Arrays.toString($member.accessor) +
#end
#elseif ( $member.primitiveArray && $java_version >= 5)
$member.name=" + java.util.Arrays.toString($member.accessor) +
#elseif ( $member.string )
$member.name='" + $member.accessor + '\'' +
#else
$member.name=" + $member.accessor +
#end
#set ( $i = $i + 1 )
#end
    '}';
#else
    return "$classname{}";
#end
}

2 Answers

Alexander Nikiforov
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Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 Points

It is called Velocity Template Language. Here is link to it:

http://velocity.apache.org/

Read here for more how it is used in Intellijidea:

https://www.jetbrains.com/help/idea/2016.2/file-and-code-templates.html

Although it looks to me it is very outdated... Latest Stable release in 2010

There a lot of templating langauges, take a look:

https://en.wikipedia.org/wiki/Comparison_of_web_template_engines

The one that is used in 'Spring Basics Course' is Thymeleaf

And in 'Spark Java Course' Handlebars