R: [Php-java-bridge-users] Primitive types

[SQUILLACE M. <msq...@so...>]

Jost,

Thank you for the reply.

>> When installing the client Java bindings, WebSphere
>> puts them in /opt/mqm/java/lib

> Loading them shouldn't be a problem if the application
> server knows about this directory and automatically
> adds its content to the classpath. If not, then one
> must find another way to load the libraries.

I am not using an application server, but simply start the
php-java-bridge as a service. I wrote WebSphere but meant the WebSphere
MQ installation scripts. Another goal of my tests is to define the
lightest environment to install on a PHP webserver to enable Java class
invocation.

> The recommended way to load libraries is to install
> them as name-version.jar in /usr/share/java or one of
> its sub directories and then require them with the
> name and version number.

Good point, I wouldn't mind adding a java_require() statement in order
to maintain a cleaner environment. This is not so easy to do in this
instance, since all the samples in the WebSphere documentation assume a
classpath is set as specified in the installation notes, and the
product's jar files are clearly interlinked: I tried to java_require()
only the libraries needed by the classes I was using in my sample and
kept getting errors, that went away as soon as I created the symbolic
links in /usr/share/java.
I believe one should java_require() ALL the WebSphere MQ jars in each
PHP script; a more elegant approach could be to centralize the
java_require() statement in a PHP include file, so that when a next
WebSphere MQ release adds a new jar one needs only modify one file.

>> Apparently the bridge keeps converting the second
>> argument (an integer)
>> to java.lang.Long while the method mandates an int.

> Does it require an int or does it require a
> java.lang.Integer?  I think this is a bug in the PHP documentation
which talks about "integer"=20
> and "float" even though these are long and double.

It requires an int. In one of several attempts I called the method with
an object of class java.lang.Integer and the error message simply
became:

Fatal error: Uncaught [class java.lang.Exception: java.lang.Exception:
Invoke failed: [class com.ibm.mq.MQQueueManager]->accessQueue(class
java.lang.String, class java.lang.Integer). Cause:
java.lang.IllegalArgumentException:
java.lang.ClassCastException@1a786c3]

From a brief examination of JavaBridge.java (remember I don't speak
fluent Java at all) I seem to understand the conversion to int is not
implemented; reading the JSR 223 conversely shows it should be, since
the bridge has to "adapt" the script request to the "most closely
matching" method argument list.

Bye,
Massimo=20