[#BloombergLP-ball-Rule-2constructor-0b]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/Rule.adoc[Rule]::Rule
:relfileprefix: ../../../
:mrdocs:

Create a `Rule` with the specified pattern and threshold levels&period;

== Synopsis

Declared in `&lt;ball&lowbar;rule&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Rule(
    std::string&lowbar;view const& pattern,
    int recordLevel,
    int passLevel,
    int triggerLevel,
    int triggerAllLevel,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Create a `Rule` object whose pattern is the specified `pattern` and whose thresholds levels are the specified `recordLevel`, `passLevel`, `triggerLevel`, and `triggerAllLevel` respectively&period; Optionally specify a `basicAllocator` used to supply memory&period; If `basicAllocator` is 0, the currently installed default allocator will be used&period; The behavior is undefined unless each of the four threshold level values is not in the range &lsqb;0 &period;&period; 255&rsqb;&period; Note that a newly created `Rule` object does not have any attributes&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pattern*
| category&hyphen;name pattern for this rule
| *recordLevel*
| record threshold level
| *passLevel*
| pass threshold level
| *triggerLevel*
| trigger threshold level
| *triggerAllLevel*
| trigger&hyphen;all threshold level
| *basicAllocator*
| memory allocator&semi; null uses the default
|===


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