I have recently switched to the Jakarta Commons Collections 2.1 library. I am mostly using it for Buffer implementations as I am working on a network simulator using queues of messages. Unfortunately there is no method to know if a buffer is full other than adding an object and catching a BufferOverflowException... Which is quite annoying for me as the simulator should only simulate the latency from some data tranfer only if the target buffer is not full. And I can't predict if a given buffer will a bounded one or not (depending on the scenario used for simulation).
So, I was planning on coding some utils to test whether a buffer is full or not. But then I thought of another alternative, the BoundedCollection interface : public interface BoundedCollection extends java.util.Collection { public boolean isFull(); public int maxSize(); } ... of course implemented by the BoundedBuffer class. So to test if a buffer if full : if (myBuffer instanceof BoundedCollection) { bufferFull=((BoundedCollection)myBuffer).isFull(); } else { bufferFull=false; // as long as there is some free memory left } Maybe I am just reinventing the wheel but if someone as a {cheap,quick,simple} solution, please tell me. I had my own queue library working until I changed all my sources to use commons-collections just to realize I am stuck with this issue. Regards Herve Quiroz -- To unsubscribe, e-mail: <mailto:commons-dev-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:commons-dev-help@;jakarta.apache.org>