EXAMPLES

QueryCondition

1) Description

The QueryCondition example is used to illustrate message filtering through use of Queries.

2) Design

It consists of 4 units :

Configurable:

symbol allows the selection of the ticker to be subscribed to:

3) Scenario

The QueryConditionDataPublisher application generates stock quotes for two ticker symbols, GE and MSFT.

In order to subscribe to a particular ticker, the subscriber application QueryConditionDataSubscriber should be run with GE or MSFT as command line arguments.

Usage:

QueryConditionDataPublisher usage:
      QueryConditionDataPublisher
    
QueryConditionDataSubscriber usage:
      QueryConditionDataSubscriber [symbol]
    

Running of examples in Standalone Mode

Running the examples in a Posix environment

Environment Setup

Let's call OpenSplice_install_dir the OpenSplice installation directory.

The OpenSplice environment variables must be set in order for the examples to build/run correctly. To do this, open a terminal and source the "OpenSplice_install_dir/release.com" script supplied with the distribution.

C and C++ Executables

Building the examples is described on the Summary page

Two executables and a library are generated in the standalone directory when the example is built:

For C++

For C

Java executables

Building the examples is described on the Summary page

Three jars are generated in the java\standalone or java5 directory when the example is built:

For Java

For Java5

ISO C++ 2 Executables

Building the examples is described on the Summary page

Two executables are generated in the isocpp2 directory when the example is built:

Running the example

Ensure that the environment for OpenSplice is set up correctly as described above for each new terminal used.

It is recommended that you run the subscriber and publisher in separate terminals to avoid mixing the output

Running in single process (heap memory) configuration : the application starts OpenSplice middleware

Running in multiple process shared memory configuration

To enable deployment in this mode, an OpenSplice configuration file must be selected that has shared memory support e.g. one of the ospl_shmem xml configuration files found in the OpenSplice_install_dir/etc/config directory.

Starting the subscriber and publisher

Running C/C++/C#/ISO C++ 2/Java examples on Windows

Environment Setup

Let's call OpenSplice_install_dir the OpenSplice installation directory.

The OpenSplice environment variables must be set in order for the examples to run correctly. To do this open an OpenSplice Command Prompt which will set up the environment variables for OpenSplice automatically. The OpenSplice Command Prompt can be selected from the start menu. Alternatively, open a windows Command Prompt and execute the "OpenSplice_install_dir\release.bat" batch script supplied with the distribution.

C/C++/C# Executables

Building the examples is described on the Summary page

Two executables are generated in the standalone directory when the example is built:

For C

For C++

For C#

Java Executables

Building the examples is described on the Summary page

Three jars are generated in the java\standalone or java5 directory when the example is built:

For Java

For Java5

ISO C++ 2 Executables

Building the examples is described on the Summary page

Two executables are generated in the isocpp2 directory when the example is built:

Running the C/C++/C#/ISO C++ 2/Java Examples

Ensure that the environment for OpenSplice is set up correctly as described above for each new command prompt used.

The following steps describe how to run the examples:

Running in single process (heap memory) configuration : the application starts OpenSplice middleware

Running in multiple process shared memory configuration

To enable deployment in this mode, an OpenSplice configuration file must be selected that has shared memory support e.g. one of the ospl_shmem xml configuration files found in the OpenSplice_install_dir\etc\config directory.

Starting the subscriber and publisher