Calculate query weights and build query scorers.
A Weight is constructed by a query Query->createWeight(). The sumOfSquaredWeights() method is then called on the top-level query to compute the query normalization factor Similarity->queryNorm(float). This factor is then passed to normalize(float). At this point the weighting is complete.
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|license||New BSD License|
getValue() : float
sumOfSquaredWeights() : float
$_queryNorm : float
This value is stored only for query expanation purpose and not used in any other place
$_value : float
Weight value may be initialized in sumOfSquaredWeights() or normalize() because they both are invoked either in Query::_initWeight (for top-level query) or in corresponding methods of parent query's weights