ScriptTypeConfiguration

Various custom configuration elements support a common content model used to supply JSR-223 scripts inside other object configurations. Where applicable, the specific configuration elements that share this content model will include this material. These include the following documentation pages:

Namespace and Schema

Configuration elements that contain scripts are of type ScriptType, which is a type used across a number of namespaces. The specific namespace will depend on where the element shows up in your configuration.

The following sections describe the attributes and child elements of an element of type ScriptType.

Script Context

Each element of type ScriptType provides the relevant script context, that is, one or more input objects (in the general sense) to be utilized by the script. For specific details, consult the individual configuration element pages listed above.

Examples

The following example illustrates the use of a CDATA section

A script wrapped with a CDATA section

<Script>
<![CDATA[
    // script goes here
]]>
</Script>

For additional examples of scripts, consult the individual configuration element pages listed above.

Scripting Language

The default scripting language is JavaScript (language=”javascript”). Therefore all of the sample scripts are written in JavaScript, which is based on the ECMAScript standard. The following table illustrates the relationship between JRE version and ECMAScript version:

Java Version	Default Script Engine	ECMAScript Version

Java Version	Default Script Engine	ECMAScript Version
Java 11+	Nashorn	ECMAScript 5.1 (plus some features of ECMAScript 2015 aka ECMAScript 6)
Java 15+	None	Java versions from JDK15 on do not support the Nashorn or the Rhino Language. This will be mitigated started with IdP Version 4.1, but for now it suffices to note that the SystemRequirements only specify Java 11 variants (and as such JDK15 is unsupported).

Nashorn documentation from Oracle

An introduction to Nashorn from Oracle:

Part 1: Introducing JavaScript, ECMAScript, and Nashorn
Part 2: The Java in JavaScript
Part 3: Database Scripting

If you’re still using Rhino via manual addition to the IdP classpath, many of the sample scripts (which are quite simple) will run under both Rhino and Nashorn.

Still using Rhino?

Consult the Rhino Migration Guide for helpful advice. Alternatively consider using the Rhino Scripting plugin (IdP Versions 4.1 and later)

Since Nashorn is included with Java 8 (and later), the sample scripts aim to conform to ECMAScript 5.1. In particular, the scripts avoid features introduced in ECMAScript 6 (also known as ECMAScript 2015) for compatibility.

Many of the sample scripts are written in Strict Mode. Such a script will include an explicit “use strict” directive, which intentionally precludes the use of certain (error-prone) JavaScript features. Although Strict Mode was introduced in ECMAScript 5, the “use strict” directive is a harmless addition to any script. In particular, it has no effect (positive or negative) when used in scripts under Rhino. That said, you may disable Strict Mode at any time simply by removing (or commenting out) the “use strict” directive.