SolrCollapseFunction::setNullPolicy

(PECL solr >= 2.2.0)

SolrCollapseFunction::setNullPolicySets the NULL Policy

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public SolrCollapseFunction::setNullPolicy ( string $nullPolicy ) : SolrCollapseFunction

Sets the NULL Policy. One of the 3 policies defined as class constants shall be passed. Accepts ignore, expand, or collapse policies.

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nullPolicy

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SolrCollapseFunction