Java and ESL coexistence

Pictures and Events can contain also ESL and JAVA script together.

These scripts run in a parallel manner and independently from each other. The initialization parts (between BEGIN and END in ESL, and onInit() in Java) are also executed independently on each other. Therefore, if some shared status (e.g. picture variable) is initialized in the initialization part of ESL, this status may not be visible in the initialization part of Java. But the causality of events is kept, i.e. if a picture local variable is set in ESL and consequently RPC is called to Java, the local variable will be already set in Java when executing RPC. In the case that it is necessary to initiate the status in ELS and Java in consistently and then perform some task in ESL, it can be solved in the following manner:

  BEGIN
 ; initiate the status in ESL
 ; ...
 CALLJ ... myInit() SYNC ...
 ; both Java part onInit() and myInit() have already been done
 ; 
 ; 
 END   

public void myInit() {

    // initialization of status in Java

    // ...

}

or

  RPC PROCEDURE DoSomething
 ; even BEGIN..END part and onInit() and myInit() have already been done
 END DoSomething
 
 BEGIN
 ; initiate status in ESL
 ; ...
 CALLJ ... myInit() ASYNC ...
 END
 -------------------   

public void myInit() {

    // initialization of status in Java

    // ...

    callESLAsync(null, null, 0, "DoSomething", null);

  }
-------------------