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| Changed, Enhanced, or Newly Deprecated Features |
Changed, Enhanced, or Newly Deprecated Features |
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- 'naming.IName' is now derived from 'binding.IComponentKey', so names and |
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addresses must now support the 'findComponent()' method. All PEAK name and |
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address types provide support for this. |
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- The 'lookup()' method of 'binding.IComponentKey' is now called |
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'findComponent()', to better distinguish it from 'lookup()' in |
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'naming.IBasicContext', which does something very different. |
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- 'binding.bindTo()' and 'binding.bindSequence()' now pre-adapt their |
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arguments to 'IComponentKey', to speed lookups at runtime, and to ensure |
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that errors due to an unusable parameter type occur at class creation time |
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instead of waiting until lookup time. |
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- The following 'binding' forms are now deprecated, and will go away before |
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0.5 beta is released: |
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'bindToProperty(x,y)' -- use 'bindTo(PropertyName(x),default=y)' |
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'bindToParent()' -- use 'bindTo("..")' |
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'bindToSelf()' -- use 'bindTo(".")' |
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'bindToUtilities()' -- no replacement; let me know if you're using this. |
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- There's a new 'peak.storage.files' module, with handy classes like |
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'EditableFile'. 'EditableFile' is a class that lets you edit the contents |
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of a file "in place", with atomic replacement of the original at transaction |
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commit. If the transaction is aborted, the original file is left unchanged. |
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- 'peak.running.scheduler.UntwistedReactor' now supports a configuration |
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property ('peak.running.reactor.checkInterval') to determine how long it |
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should run 'select()' calls for, when there are no scheduled tasks. |
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- 'peak.running.scheduler.UntwistedReactor' now supports using a "signal |
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manager" component (via the 'peak.running.signalManager' property) to |
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process signals while a 'run()' loop is in progress. Signal managers can |
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also be added or removed at any time via the new 'peak.util.signal_stack' |
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module. |
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- 'peak.running.commands.AbstractCommand' now offers a '_run()' method that |
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can be overridden in subclasses, instead of 'run()'. If you override the |
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new '_run()' method instead, you get the advantage of automatic handling |
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for invocation errors and 'SystemExit' exceptions, provided for you by the |
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'run()' method. |
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| - There is now a 'storage.DMFor(class)' function that returns a configuration |
- There is now a 'storage.DMFor(class)' function that returns a configuration |
| key for registering or looking up data managers by class. You can use the |
key for registering or looking up data managers by class. You can use the |
| returned key in a binding's 'offerAs' list, or as the target of a 'bindTo()' |
returned key in a binding's 'offerAs' list, or as the target of a 'bindTo()' |
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| Corrected Problems |
Corrected Problems |
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- Transaction participants that raised an error in their 'abortTransaction()' |
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method, would not receive a 'finishTransaction()' call, the error was |
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passed through to the transaction service's caller, and later participants |
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might not have received an 'abortTransaction()' message either. |
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|
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- SQL connections didn't close their cursors before aborting a transaction |
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- The logging system would raise an error if a log message with no arguments |
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contained a '%' sign. |
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| - There was a typo in peak.naming.arithmetic that caused homogeneous non-URL |
- There was a typo in peak.naming.arithmetic that caused homogeneous non-URL |
| name subtraction to fail. |
name subtraction to fail. |
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Diff of /PEAK/CHANGES.txt
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