Cloud Bigtable Client - Class QualifierFilter (2.16.0)

Reference documentation and code samples for the Cloud Bigtable Client class QualifierFilter.

A builder used to configure qualifier based filters.

Example:

 use Google\Cloud\Bigtable\Filter;

$builder = Filter::qualifier(); 

Matches only cells from columns whose qualifiers satisfy the given RE2 regex . Note that, since column qualifiers can contain arbitrary bytes, the \C escape sequence must be used if a true wildcard is desired. The . character will not match the new line character \n , which may be present in a binary qualifier.

Example:

 $qualifierFilter = $builder->regex('prefix.*'); 

Matches only cells from rows whose keys equal the value. In other words, passes through the entire row when the key matches, and otherwise produces an empty row.

Example:

 $qualifierFilter = $builder->exactMatch('cq1'); 

Returns a builder used to configure qualifier range filters.

Example:

 $qualifierFilter = $builder->rangeWithinFamily('cf1')
    ->of('cq1', 'cq10');