Cooperative software application architecture

摘要

An application environment (10) includes a hosting application (12) and an application component (14) operative to execute a plurality of ordered processing operations (16). The hosting application (12) is operative to effect a call to the component (14) , thereby invoking operation of the component (14). The component (14) is operative to execute any of the ordered processing operations in response to the call until a suspense condition is met. The component (14) is thereupon operative to suspend its operation, maintain execution state information (20), and return execution control to the hosting application (12). The hosting application (12) is operative to resolve the suspense condition and effect a further call to the component (14). The component (14) is then operative to determine whether the suspense condition is resolved and, if so, resume execution of the ordered processing operations from the point of suspension in response to the further call. <IMAGE>