JavaScript in RPE

Simple templates can be created in RPE by doing drag&drop mainly. However for some of the more interesting templates you need to write some code: process the data that is being rendered, conditions for exclusion of elements or formatting etc.For all this you use JavaScript.

RPE exposes a standard JavaScript engine meaning you can one of the many JavaScript resources available on the WWW. For more details on the JavaScript engine supported by RPE check Mozilla Rhino: JavaScript for Java

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Document generation from Design Manager

The Design Manager team has published an excellent tutorial on how to generate documents from IBM Rational Software Architect Design Manager using Rational Publishing Engine. See here.

Reporting with RQM 301

RQM 3.0.1 Reportable API used for document generation with RPE is, excepting a few areas, backwards compatible meaning the templates you’ve created for 2.x should work with 3.0.1

For the areas where RQM 3.0.1 is not backwards compatible see Notable Changes in RQM Schema

Another interesting link is RQM API Fields This new API will allow you to build more elegant and efficient RPE templates for RQm document generation.

Passing arguments to Word macros

Update 2012.02.10:  a better solution is now available . See Passing arguments to Word macros (2)

Passing arguments to Word macros is very desirable and often necessary. Having parametrized macro allows the macro to be reused in your organisation. Unfortunately there is no direct way to provide arguments to macros when invoking the macros from outside Office, like RPE does.

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Using RPE 1.1.2 Type Cast

When using Type Cast-ing in Rational Publishing Engine a few rules must be followed:

  • use Type Cast when and where supported by the data source
  • use a correct query structure

Use Type Cast when and where supported

RPE will allow you to CAST any type to any other type without checking if there is a relationship between those types to make the CAST valid. Defining invalid casts won’t break the template or cause run time errors but those queries will not return any results.

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RPE Support Links

From RPE’s homepage on imb.com one can access the RPE support page. The “Choose your page” menu ( located on the left side of the page for the US version of the site) you can access the technotes and techdocs for RPE. These documents contain information about known RPE issues and quite often workarounds for these problems.

The latest technotes added in the troubleshooting section are:

What is new in RPE 1.1.2 – Variables in native filters

UPDATE: the example template is available here.

One of the most exciting features of RPE 1.1.2 is the ability to use variables in native filters. Prior to 1.1.2 native filters were hardcoded in the template limiting the applicability of this extremely useful feature.

Best practice: native filters should be used over scripted filters is to be preferred whenever available as it results in the minimum amount of data returned by the provider, reducing the data RPE has to process ( and discard).

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