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From "Terefang Verigorn (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JEXL-182) null coalesce operator
Date Thu, 03 Dec 2015 00:48:10 GMT

     [ https://issues.apache.org/jira/browse/JEXL-182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Terefang Verigorn updated JEXL-182:
-----------------------------------
    Description: 
common code often has constructs along the lines of:

String r = ((v != null) ? v : "default");

wouldnt this be better handled by a simple operator ?

groovy has "?:" (http://www.groovy-lang.org/operators.html#_elvis_operator)
like:

def r = (v ?: 'default');

and php 7 now has '??' (http://php.net/manual/en/migration70.new-features.php#migration70.new-features.null-coalesce-op)
like:

$r = ($v ?? 'default');

  was:
common code often has constructs along the lines of:

String r = ((v == null) ? v : "default");

wouldnt this be better handled by a simple operator ?

groovy has "?:" (http://www.groovy-lang.org/operators.html#_elvis_operator)
like:

def r = (v ?: 'default');

and php 7 now has '??' (http://php.net/manual/en/migration70.new-features.php#migration70.new-features.null-coalesce-op)
like:

$r = ($v ?? 'default');


> null coalesce operator
> ----------------------
>
>                 Key: JEXL-182
>                 URL: https://issues.apache.org/jira/browse/JEXL-182
>             Project: Commons JEXL
>          Issue Type: Improvement
>    Affects Versions: 2.1.1
>         Environment: all
>            Reporter: Terefang Verigorn
>            Priority: Trivial
>              Labels: features
>
> common code often has constructs along the lines of:
> String r = ((v != null) ? v : "default");
> wouldnt this be better handled by a simple operator ?
> groovy has "?:" (http://www.groovy-lang.org/operators.html#_elvis_operator)
> like:
> def r = (v ?: 'default');
> and php 7 now has '??' (http://php.net/manual/en/migration70.new-features.php#migration70.new-features.null-coalesce-op)
> like:
> $r = ($v ?? 'default');



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