Component /dat/lib/control/errorCatcher

An errorCatcher marks a point in the process at which any errors thrown by errorThrowers or other errorCatchers in subsequent process will be handled. All documents received on the input port are simply sent to the output port. If processing on the output port involves sending a document to an errorThrower or errorCatcher, the document sent to the errorThrower or errorCatcher will be sent out the caughtError port. Any documents recieved on the throw port will initiate futher exception processing. All processing since the previous errorCatcher is terminated and control is transfered to the caughtError port of the previous errorCatcher.

Pins

Ports

• input Any document received on this port will be sent to the output port.
• throw Any document received on this port will result in terminating all processing since the last errorCatcher. The received document is then sent on the errorCatcher's caughtErrorPort.
• caughtError Any document sents to a throw port of an errorThrower or errorCatch that is in the processing of the output port will be sent out this port.
• output Any document received on the input port are sent out this port.

Properties