This article presents a summary of component threading models and it's (threading model) implications under Active Server Pages (ASP).
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Both (+Free-Threaded Marshaler) |
Single |
Free |
Apartment |
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| Application < OBJECT > tag objects |
Access is Direct
Object runs in current user security context
Accesses are not serialized
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Access through proxy vi Global Interface Pointer (GIP)
Object runs in SYSTEM context.
Accesses are serialized.
Cannot access ObjectContext.
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Access through proxy via GIP.
Object runs in SYSTEM context.
Accesses are not serialized.
Cannot access ObjectContext.
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Access through proxy via GIP.
Object runs in SYSTEM context.
Accesses are serialized.
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| Application Properties (that is, Application("obj")=) |
Access is direct.
Object runs in current user security context.
Accesses are not serialized.
|
Access through proxy via GIP.
Object runs in SYSTEM context.
Accesses are serialized.
Cannot access ObjectContext.
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Access through proxy.
Object runs in SYSTEM context.
Accesses are not serialized.
Cannot access ObjectContext.
|
Assignment is not allowed -- an error appears.
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| Session Objects |
Access is direct.
Object runs in current user security context.
|
Access through proxy.
Object runs in SYSTEM context.
Cannot access ObjectContext.
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Access through proxy.
Object runs in SYSTEM context.
Cannot access ObjectContext.
|
Access is direct.
Object runs in current user security context.
Session is locked down.
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| Page Objects |
Access is direct.
Object runs in current user security context.
|
Access through proxy.
Object runs in SYSTEM context.
Cannot access ObjectContext.
|
Access through proxy.
Object runs in SYSTEM context.
Cannot access ObjectContext.
|
Access is direct.
Object runs in current user security context.
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