Persistent Threads

摘要

Persistent threads are a database programming concept particularly well-suited for applications that manage long-term, distributed or cooperative activities. We introduce persistent threads as a novel form of bindings from data in persistent object stores to activated code and relate them to existing binding concepts found in database programming. We also describe the integration of persistent threads into a polymorphically-typed database language and its supporting layered system architecture with particular emphasis on abstractly-defined thread representations which support thread analysis, optimization and portability.