Java Session Variable Copying
Java-based Logi applications and non-Logi Java applications may maintain their Session Variables in different ways. When these two kinds of applications are integrated, they may need to "copy" Session Variables so they can be shared between them. Logi Session Variables are accessed via @Session tokens, while standard Java application Session Variables are accessed via JSP or, in a Java program, via javax.servlet.http.HttpSession.
The Java Session Copying element, which is ignored in .NET Logi applications, can be added to the _Settings definition to enable Session Variable copying between the two kinds of Java applications. It has four attributes that let you control which variables are copied, which optimizes performance. The "Include" attributes are processed first, then the "Exclude" attributes. The attributes include:
| Attribute | Description |
|---|---|
| Copy From Java Exclude | Specifies a comma-separated list of regular expressions that identify the Java application session variables that will not be copied to the Logi Info application session space. Do not use session variable names that contain spaces. |
| Copy From Java Include | Specifies a comma-separated list of regular expressions that identify the Java application session variables that will be copied to the Logi Info application session space. Do not use session variable names that contain spaces. |
| Copy To Java Exclude | Specifies a comma-separated list of regular expressions that identify the Logi Info application session variables that will not be copied to the Java application session space. Do not use session variable names that contain spaces. |
| Copy From Java Include | Specifies a comma-separated list of regular expressions that identify the Logi Info application session variables that will be copied to the Java application session space. Do not use session variable names that contain spaces. |
It is possible to have almost all session variables copied automatically, but that typically doesn't produce the best performance. However, if you want to use this behavior, create element source code like the example below and paste it into your _Settings definition XML code:
<JavaSessionCopying CopyToJavaInclude="myVar1, myVar2" CopyFromJavaInclude="myVar3, myVar4" />