:QueryTermCount

The QueryTermCount class is used to calculate the number of terms after analysis.

QueryTermCount create(OpsScorerInitParams params)

Creates a QueryTermCount object. params: the parameters that are used for initialization. For more information, see OpsScorerInitParams.

QueryTermCount create(OpsScorerInitParams params, CString indexName)

Creates a QueryTermCount object and calculates the number of terms in a specific index. params: the parameters that are used for initialization. For more information, see OpsScorerInitParams. indexName: the name of the index for which you want to calculate the number of terms. The name must be a constant.

double evaluate(OpsScoreParams params)

Calculates the number of terms after analysis. params: the parameters that are used for score calculation. For more information, see OpsScoreParams. Sample code:

package users.scorer;
import com.aliyun.opensearch.cava.framework.OpsScoreParams;
import com.aliyun.opensearch.cava.framework.OpsScorerInitParams;
import com.aliyun.opensearch.cava.framework.OpsRequest;
import com.aliyun.opensearch.cava.framework.OpsDoc;
import com.aliyun.opensearch.cava.features.similarity.querymatch.QueryTermCount;

class BasicSimilarityScorer {
    QueryTermCount _f1;
    boolean init(OpsScorerInitParams params) {
        _f1 = QueryTermCount.create(params);
        return true;
    }

    double score(OpsScoreParams params) {
        OpsDoc doc = params.getDoc();
        float s1 = _f1.evaluate(params);
        doc.trace("s1 ", s1);
        return s1;
    }
};