TWO TOMCATS

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zamba - 19 Mar 2008 22:56 GMT

HI I WANT TO KNOW IF IS POSIBLE FROM ONE JAVA CLASS THAT IS RUNNING
UNDER TOMCAT STARTED ON 64 BITS MAKE A CALL TO ANOTHER CLASS THAT MUST
RUN UNDER ANOTHER TOMCAT STARTED UNDER 32 BITS...AND IF IS
POSIBLE...HOW.....REALLY THANKS !!!!!

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Arne Vajhøj - 19 Mar 2008 23:40 GMT

> HI I WANT TO KNOW IF IS POSIBLE FROM ONE JAVA CLASS THAT IS RUNNING
> UNDER TOMCAT STARTED ON 64 BITS MAKE A CALL TO ANOTHER CLASS THAT MUST
> RUN UNDER ANOTHER TOMCAT STARTED UNDER 32 BITS...AND IF IS
> POSIBLE...HOW.....

No. Only classes running in the same JVM can call each other.

Arne

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Lew - 20 Mar 2008 01:58 GMT

zamba wrote:

>> HI I WANT TO KNOW IF IS POSIBLE FROM ONE JAVA CLASS THAT IS RUNNING
>> UNDER TOMCAT STARTED ON 64 BITS MAKE A CALL TO ANOTHER CLASS THAT MUST
>> RUN UNDER ANOTHER TOMCAT STARTED UNDER 32 BITS...AND IF IS
>> POSIBLE...HOW.....

(Please stop shouting.)

There is no way that a Java class is required to run under a 32 bit JVM,
barring JNI interactions.

As for invoking classes in another Tomcat, you can use web service calls or
web application interactions to invoke operations in a different application
container. As Arne said, you cannot invoke classes directly one Tomcat from
another, but there are plenty of remote invocation protocols available to work
around that. I recommend SOAP-based Web services.

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Lew

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