Overview

GigaSpaces XAP.NET takes advantage of several runtime components from GigaSpaces XAP (and, as a consequence, Java). In most cases, this is transparent to the user, since the XAP.NET installation process includes the required Java and XAP files. However, in some cases, users may wish to use an existing Java or XAP installation (e.g. developing interoperability solutions, using both XAP and XAP.NET). This page explains how to install XAP.NET in such scenarios.

Using an Existing Java Installation

GigaSpaces XAP.NET is bundled with Sun JDK 1.5 update 16. If you have already installed J2SE 5.0, and you wish XAP.NET to use your Java installation, instead of creating an additional installation, follow these steps:

1. Start XAP.NET installation. Review and accept the license.
2. In the Choose Setup Type dialog, select Custom, and click Next to continue.
3. In the Custom Setup dialog, expand the Core Components node in the feature tree, click Built-in Java and select Entire feature will be unavailable. Click Next to continue.
4. In the Java Installation Path groupbox, type the location of your installed Java, and click Next to continue.
5. Click Install to start the installation process.

Advanced: If you wish to switch to a different Java installation at a later time, without re-installing XAP.NET, you can manually edit the registry, and set the new location under HKLM\SOFTWARE\GigaSpaces\XAP.NET{version}\JavaHome.

Using an Existing XAP Installation

GigaSpaces XAP.NET is bundled with GigaSpaces XAP components required at runtime. Developers engaged in interoperability solutions may prefer working with a full installation of the Java XAP, which contains documentation, examples and tutorials.
If you wish XAP.NET to use an existing XAP installation, instead of creating an additional installation, follow these steps:

1. Start XAP.NET installation. Review and accept the license.
2. In the Choose Setup Type dialog, select Custom and click Next to continue.
3. In the Custom Setup dialog, expand the Core Components node in the feature tree, click Built-in XAP Runtime, and select Entire feature will be unavailable. Click Next to continue.
4. In the XAP Runtime Components Installation Path groupbox, type the location of your installed XAP, and click Next to continue.
5. Click Install to start the installation process.

You cannot mix XAP.NET and XAP versions - always use the same version and build.