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| Changed, Enhanced, or Newly Deprecated Features |
Changed, Enhanced, or Newly Deprecated Features |
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- The naming system no longer has 'objectFactories' and 'stateFactories' as |
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utilities; they have been replaced with new mechanisms involving adaptation. |
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Previously, addresses had a 'retrieve()' method that could be used to |
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retrieve the object defined by the address. Now, to retrieve an object for |
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an address, you must either define a context that processes the address, or |
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the address must have a 'defaultFactory' attribute, which provides a name |
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to be imported to get an 'IObjectFactory' that can construct the referenced |
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object. (This is simpler than it sounds; for URLs that reference |
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ManagedConnections, for example, all you need to do is provide the fully |
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qualified name of the connection class.) |
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Meanwhile, writable naming contexts must have a 'serializationProtocol' |
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attribute, specifying what interface an object should be adapted to before |
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attempting to store it in that context. |
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The naming system no longer processes the 'creationName' keyword argument; |
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this is now considered the sole responsibility of 'peak.binding'. The |
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'IComponent.lookupComponent()' method still accepts the keyword argument, |
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and attribute bindings still handle the creation name transparently. It is |
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just not available via naming system APIs, and naming contexts no longer |
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have to deal with it. |
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The naming system base classes no longer use 'attrs' as an input parameter |
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or return value. If you've subclassed anything from 'peak.naming.contexts', |
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note that your '_get()' methods should now just return the lookup value, |
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rather than a 'state,attrs' tuple. For most naming contexts, this just |
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means you should change 'return foo, None' statements to just 'return foo'. |
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| - Property definition rules in an .ini file can now refer to 'rulePrefix' and |
- Property definition rules in an .ini file can now refer to 'rulePrefix' and |
| 'ruleSuffix' variables. 'rulePrefix' is a '.'-terminated string, |
'ruleSuffix' variables. 'rulePrefix' is a '.'-terminated string, |
| representing the name the rule was defined with. For example, if the |
representing the name the rule was defined with. For example, if the |
| identify active descriptors, so you can now create your own. (Previously, |
identify active descriptors, so you can now create your own. (Previously, |
| 'peak.binding' used 'isinstance()' to detect active descriptors.) |
'peak.binding' used 'isinstance()' to detect active descriptors.) |
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| - 'peak.naming' no longer automatically converts all addresses to the |
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| addressed objects. You must specifically request the interface you want |
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| by adapting the retrieved object to that interface. This can be done by |
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| supplying an 'adaptTo=ISomething' keyword argument to the attribute binding |
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| definition or your 'lookupComponent()' call. |
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| The naming system no longer has 'objectFactories' and 'stateFactories'; |
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| these have been replaced with adaptation. Writable naming contexts must |
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| have a 'serializationProtocol' attribute specifying what interface an object |
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| should be adapted to before attempting to store it in that context. |
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| |
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| The naming system no longer processes the 'creationName' keyword argument; |
|
| this is now considered the sole responsibility of 'peak.binding'. The |
|
| 'IComponent.lookupComponent()' method still accepts the keyword argument, |
|
| and attribute bindings still handle the creation name transparently. It is |
|
| just not available via naming system APIs, and naming contexts no longer |
|
| have to deal with it. |
|
| |
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| The naming system base classes no longer use 'attrs' as an input parameter |
|
| or return value. If you've subclassed anything from 'peak.naming.contexts', |
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| note that your '_get()' methods should now just return the lookup value, |
|
| rather than a 'state,attrs' tuple. For most naming contexts, this just |
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| means you should change 'return foo, None' statements to just 'return foo'. |
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| - REMOVED 'naming.ParsedURL'; it was deprecated as of 0.5 alpha 2. |
- REMOVED 'naming.ParsedURL'; it was deprecated as of 0.5 alpha 2. |
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| - The 'provides' keyword argument to various 'peak.binding' APIs has been |
- The 'provides' keyword argument to various 'peak.binding' APIs has been |
Diff of /PEAK/CHANGES.txt
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