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Error handling

This section describes how errors are handled. There are two types of errors:

Handling of Runtime exceptions

There are two types of SCA runtime exception:

Handling of Business exceptions

Business exceptions may be defined and thrown by a component in the normal way, regardless of whether the component has been called locally or remotely. The SCA runtime does not catch business exceptions that have been thrown by a component called locally, so they will be returned to a caller in the normal way. If a component has been called via a Web service, on the other hand, the SCA runtime on the service providing end does catch business exceptions, and will ensure these are passed back to the calling end and re-thrown. Assuming that the calling end has a definition of the exception (that is, is able to include a file containing the PHP class defining the exception) the re-thrown exception will contain the same details as the original, so that the getLine() and getFile() methods for example will contain the location where the exception was thrown within the business logic. The exception will be passed in the detail field of a soap fault with a fault code of "Client".


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