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Preview: DLR Hosting and related stuff...

Field Notes Of An Enterprise Software Consultant

Knowledge is POWER

Last Build Date: Fri, 24 Sep 2010 07:43:58 +0000


FAST ESP : Deleting all documents in a collection

Fri, 24 Sep 2010 07:43:58 +0000

A typical FAST ESP solution has multiple collections. For example, there might be a collection for the data crawled and indexed Sharepoint, another collection for data crawled from a database using JDBC Connector and so on.  Suppose that you are developing and implementing such a solution. You'd have setup a bunch of collections and setup...

Codeplex.comdlr is now setup to receive regular source updates

Thu, 04 Dec 2008 18:42:00 +0000

In my previous blog post I had mentioned that we were in the process of setting up regular automatic source pushes to the codeplex DLR project. I am happy to announce that work is now complete and our DLR sources are now available here. Going forward, the sources from our internal main source control branch...

DLR v0.9 beta released in CodePlex

Wed, 26 Nov 2008 21:16:00 +0000

We are happy to announce the release of the DLR Project in Codeplex. This beta of the v0.9 of the DLR consists of a source and binary release. This excellent release note by our PM Bill Chiles gives a nice short overview of what's in this release. We plan to release the RTW version of...

Using LINQ and the DLR in the same application

Fri, 19 Sep 2008 22:36:00 +0000

The recent beta release of the DLR allows the usage of LINQ and other CSharp 3.0 features in an application that hosts the DLR. Harry, our IronPython PM has a detailed post explaining why this was not possible before and whats changed now.

DLR Hosting API : How to create a ScriptRuntime object without using App.Config files using language specific hosting API

Sun, 14 Sep 2008 19:39:00 +0000

This previous post demonstrates the use of App.Config files to create script runtimes to host dynamic languages in an application. It is also possible to create runtimes without using a config file. The API to create a runtime and a python engine without using a config file is ScriptRuntime runtime = IronPython.Hosting.Python.CreateRuntime(); A reference to the...

DLR Hosting Sample : Simple dlr host using the new App.Config based ScriptRuntime creation

Thu, 11 Sep 2008 13:58:00 +0000

Due to the recent changes to the DLR Hosting API, dlr hosts now have to use the App.Config file to configure the languages they intend to use in the application. It’s probably a little bit more complex than before to get started on Hosting the DLR after this change. The attached self contained sample(for VS 2008) addresses this and...

DLR Hosting API : latest version of the spec is available online (includes changes to runtime initialization)

Sun, 07 Sep 2008 17:32:00 +0000

The latest version of the Hosting API spec is available here. The most recent source code drop to the IronPython codeplex site conforms to this spec (except for some open bugs). The biggest change this spec introduces to the beta4 binaries is the way the hosting runtime is initialized. Prior to this update, the hosting...

DLR Hosting API : How to create ScriptScopes using backing symbol dictionaries to implement dynamic variable lookup

Fri, 15 Aug 2008 23:04:00 +0000

The factory methods used to create a ScriptScope object have overloads that take a 'IAttributeCollection' object to create the scope using the collection as a backing store. This feature is very useful and any app that needs non trivial Hosting would mostly use this feature. The easiest way to implement the IAttributeCollection interface is to implement...

Quick notes on ScriptScope

Wed, 06 Aug 2008 22:30:00 +0000

ScriptScope is one of the key types available in the DLR Hosting API. They act as a context in which hosts execute code and record the effects of execution like changes in object values, creation of new objects etc. Prior to any code execution, ScriptScopes can be populated with variables by hosts using methods defined in this type and these...

IronPython 2.0 beta 4 released

Wed, 06 Aug 2008 19:45:00 +0000

IronPython 2.0 Beta 4 has been released here. Since the DLR and Hosting API components ship with IronPython, this beta also contains newer versions of Hosting API. So you can use this version to try out any of the Hosting API samples from this blog’s earlier entries.