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IDL Connectivity Bridges: Using Java Objects in IDL |
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By default, IDL prints the output from Java (the System.out and System.err output streams).
For example, given the following Java code:
public class helloWorld
{
// ctor
public helloWorld() {
System.out.println("helloWorld ctor");
}
public void sayHello() {
System.out.println("Hello! (from the helloWorld object)");
}
}
The following output occurs in IDL:
IDL> oJHello = OBJ_NEW('IDLjavaObject$HelloWorld', 'helloWorld')
% helloWorld ctor
IDL> oJHello -> SayHello
% Hello! (from the helloWorld object)
IDL> OBJ_DESTROY, oJHello
| Example Code This example code is also provided in the helloJava.java and hellojava2.pro files, which are in the resource/bridges/import/java/examples directory of the IDL distribution. |
| Note Due to restrictions in IDL concerning receiving standard output from non-main threads, the bridge will only send System.out and System.err information to IDL from the main thread. Other threads' output will be ignored. |
| Note A print() in Java will not have a carriage return at the end of the line (as opposed to println(), which does). However, when outputting to Java both print() and println() will print to IDL followed by a carriage return. You can change this result by having the Java-side application buffer its data up into the lines you wish to see on the IDL-side. |
IDL Online Help (March 06, 2007)