rfc:comparable

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rfc:comparable [2015/02/19 21:30] – Update to version 7.0 against master. aharveyrfc:comparable [2017/09/22 13:28] (current) – external edit 127.0.0.1
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-This RFC offers a Comparable interface which can be used to implement userspace ordering of objects.+This RFC offers a Comparable interface which can be used to implement userspace comparison of objects to other values.
  
 ===== Introduction ===== ===== Introduction =====
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 </code> </code>
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 +This interface intentionally allows variables of any type to be passed to compareTo(): there are use cases where users may want to compare objects to non-object values, such as money and bigint types, where you may want to compare the object to a numeric value.
  
 ===== Sample Code ===== ===== Sample Code =====
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   * Comparison of objects with non-objects may become confusing, particularly if scalar casting is added to the mix.   * Comparison of objects with non-objects may become confusing, particularly if scalar casting is added to the mix.
   * Comparison of objects with objects of a different class may be confusing or ill-defined.   * Comparison of objects with objects of a different class may be confusing or ill-defined.
 +  * Why we use interface instead of magic method. Comparable is not reserved currently, but methods started with __ are always reserved.
  
 ===== Alternative Approaches ===== ===== Alternative Approaches =====
rfc/comparable.1424381429.txt.gz · Last modified: 2017/09/22 13:28 (external edit)

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