本文整理汇总了Java中org.apache.lucene.queries.function.FunctionValues.doubleVal方法的典型用法代码示例。如果您正苦于以下问题：Java FunctionValues.doubleVal方法的具体用法？Java FunctionValues.doubleVal怎么用？Java FunctionValues.doubleVal使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.lucene.queries.function.FunctionValues的用法示例。
在下文中一共展示了FunctionValues.doubleVal方法的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: distance
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
/**
* @param doc The doc to score
* @return The haversine distance formula
*/
protected double distance(int doc, FunctionValues p1DV, FunctionValues p2DV) {
double[] p1D = new double[2];
double[] p2D = new double[2];
p1DV.doubleVal(doc, p1D);
p2DV.doubleVal(doc, p2D);
double y1;
double x1;
double y2;
double x2;
if (convertToRadians) {
y1 = p1D[0] * DistanceUtils.DEGREES_TO_RADIANS;
x1 = p1D[1] * DistanceUtils.DEGREES_TO_RADIANS;
y2 = p2D[0] * DistanceUtils.DEGREES_TO_RADIANS;
x2 = p2D[1] * DistanceUtils.DEGREES_TO_RADIANS;
} else {
y1 = p1D[0];
x1 = p1D[1];
y2 = p2D[0];
x2 = p2D[1];
}
return DistanceUtils.distHaversineRAD(y1,x1,y2,x2)*radius;
}
示例2: getDocIdSet
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
@Override
public DocIdSet getDocIdSet(AtomicReaderContext context, Bits acceptDocs) throws IOException {
final FunctionValues values = source.getValues( null, context );
return new FilteredDocIdSet(startingFilter.getDocIdSet(context, acceptDocs)) {
@Override
public boolean match(int doc) {
double val = values.doubleVal( doc );
return val >= min && val <= max;
}
};
}
示例3: sumValues
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
private final void sumValues(List<MatchingDocs> matchingDocs, boolean keepScores, ValueSource valueSource) throws IOException {
final FakeScorer scorer = new FakeScorer();
Map<String, Scorer> context = new HashMap<>();
if (keepScores) {
context.put("scorer", scorer);
}
IntsRef scratch = new IntsRef();
for(MatchingDocs hits : matchingDocs) {
OrdinalsReader.OrdinalsSegmentReader ords = ordinalsReader.getReader(hits.context);
int scoresIdx = 0;
float[] scores = hits.scores;
FunctionValues functionValues = valueSource.getValues(context, hits.context);
DocIdSetIterator docs = hits.bits.iterator();
int doc;
while ((doc = docs.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) {
ords.get(doc, scratch);
if (keepScores) {
scorer.docID = doc;
scorer.score = scores[scoresIdx++];
}
float value = (float) functionValues.doubleVal(doc);
for(int i=0;i<scratch.length;i++) {
values[scratch.ints[i]] += value;
}
}
}
rollup();
}
示例4: distance
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
/**
* @param doc The doc to score
*/
@Override
protected double distance(int doc, FunctionValues dv1, FunctionValues dv2) {
double[] vals1 = new double[source1.dimension()];
double[] vals2 = new double[source1.dimension()];
dv1.doubleVal(doc, vals1);
dv2.doubleVal(doc, vals2);
return distSquaredCartesian(vals1, vals2);
}
示例5: distance
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
/**
* Calculate the distance
*
* @param doc The current doc
* @param dv1 The values from the first MultiValueSource
* @param dv2 The values from the second MultiValueSource
* @return The distance
*/
protected double distance(int doc, FunctionValues dv1, FunctionValues dv2) {
//Handle some special cases:
double[] vals1 = new double[source1.dimension()];
double[] vals2 = new double[source1.dimension()];
dv1.doubleVal(doc, vals1);
dv2.doubleVal(doc, vals2);
return vectorDistance(vals1, vals2, power, oneOverPower);
}
示例6: getValues
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
@Override
public FunctionValues getValues(Map context, AtomicReaderContext readerContext) throws IOException {
final FunctionValues latVals = latSource.getValues(context, readerContext);
final FunctionValues lonVals = lonSource.getValues(context, readerContext);
final double latCenterRad = this.latCenter * DEGREES_TO_RADIANS;
final double lonCenterRad = this.lonCenter * DEGREES_TO_RADIANS;
final double latCenterRad_cos = this.latCenterRad_cos;
return new DoubleDocValues(this) {
@Override
public double doubleVal(int doc) {
double latRad = latVals.doubleVal(doc) * DEGREES_TO_RADIANS;
double lonRad = lonVals.doubleVal(doc) * DEGREES_TO_RADIANS;
double diffX = latCenterRad - latRad;
double diffY = lonCenterRad - lonRad;
double hsinX = Math.sin(diffX * 0.5);
double hsinY = Math.sin(diffY * 0.5);
double h = hsinX * hsinX + (latCenterRad_cos * Math.cos(latRad) * hsinY * hsinY);
double distance = (EARTH_MEAN_DIAMETER * Math.atan2(Math.sqrt(h), Math.sqrt(1 - h)));
if (distance >= 0.0 && distance < 0.25) {
return 1000;
} else if (distance >= 0.25 && distance < 1.0) {
return 800;
} else if (distance >= 1.0 && distance < 5) {
return 600;
} else if (distance >= 5 && distance < 20) {
return 400;
} else if (distance >= 20 && distance < 50) {
return 200;
} else {
return 0;
}
}
};
}
示例7: distance
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
/**
* @param doc The doc to score
*/
@Override
protected double distance(int doc, FunctionValues dv1, FunctionValues dv2) {
double[] vals1 = new double[source1.dimension()];
double[] vals2 = new double[source1.dimension()];
dv1.doubleVal(doc, vals1);
dv2.doubleVal(doc, vals2);
return DistanceUtils.distSquaredCartesian(vals1, vals2);
}
示例8: sumValues
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
private final void sumValues(List<MatchingDocs> matchingDocs, boolean keepScores, ValueSource valueSource) throws IOException {
final FakeScorer scorer = new FakeScorer();
Map<String, Scorer> context = new HashMap<String, Scorer>();
if (keepScores) {
context.put("scorer", scorer);
}
IntsRef scratch = new IntsRef();
for(MatchingDocs hits : matchingDocs) {
OrdinalsReader.OrdinalsSegmentReader ords = ordinalsReader.getReader(hits.context);
int scoresIdx = 0;
float[] scores = hits.scores;
FunctionValues functionValues = valueSource.getValues(context, hits.context);
DocIdSetIterator docs = hits.bits.iterator();
int doc;
while ((doc = docs.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) {
ords.get(doc, scratch);
if (keepScores) {
scorer.docID = doc;
scorer.score = scores[scoresIdx++];
}
float value = (float) functionValues.doubleVal(doc);
for(int i=0;i<scratch.length;i++) {
values[scratch.ints[i]] += value;
}
}
}
rollup();
}
示例9: distance
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
/**
* Calculate the distance
*
* @param doc The current doc
* @param dv1 The values from the first MultiValueSource
* @param dv2 The values from the second MultiValueSource
* @return The distance
*/
protected double distance(int doc, FunctionValues dv1, FunctionValues dv2) {
//Handle some special cases:
double[] vals1 = new double[source1.dimension()];
double[] vals2 = new double[source1.dimension()];
dv1.doubleVal(doc, vals1);
dv2.doubleVal(doc, vals2);
return DistanceUtils.vectorDistance(vals1, vals2, power, oneOverPower);
}
示例10: unusedTestCompile
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
/**
* This method is unused, it is just here to make sure that the function signatures don't change.
* If this method fails to compile, you also have to change the byte code generator to correctly
* use the FunctionValues class.
*/
@SuppressWarnings({"unused", "null"})
private static void unusedTestCompile() {
FunctionValues f = null;
double ret = f.doubleVal(2);
}
示例11: func
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
@Override
public double func(int doc, FunctionValues vals) {
return vals.doubleVal(doc) * DistanceUtils.DEGREES_TO_RADIANS;
}
示例12: func
import org.apache.lucene.queries.function.FunctionValues; //导入方法依赖的package包/类
@Override
public double func(int doc, FunctionValues vals) {
return vals.doubleVal(doc) * DistanceUtils.RADIANS_TO_DEGREES;
}