Example usage for org.apache.lucene.queries.function.valuesource SimpleFloatFunction SimpleFloatFunction

Introduction

In this page you can find the example usage for org.apache.lucene.queries.function.valuesource SimpleFloatFunction SimpleFloatFunction.

Prototype

public SimpleFloatFunction(ValueSource source) 

Source Link

Usage

From source file:org.apache.solr.core.DummyValueSourceParser.java

License:Apache License

@Override
public ValueSource parse(FunctionQParser fp) throws SyntaxError {
    ValueSource source = fp.parseValueSource();
    ValueSource result = new SimpleFloatFunction(source) {
        @Override// w ww  .j  av  a 2 s  .c  o  m
        protected String name() {
            return "foo";
        }

        @Override
        protected float func(int doc, FunctionValues vals) {
            float result = 0;
            return result;
        }
    };
    return result;
}

---

From source file:org.apache.solr.search.function.NvlValueSourceParser.java

License:Apache License

@Override
public ValueSource parse(FunctionQParser fp) throws SyntaxError {
    ValueSource source = fp.parseValueSource();
    final float nvl = fp.parseFloat();

    return new SimpleFloatFunction(source) {
        @Override//from  ww  w.  ja  v a 2 s .  c o  m
        protected String name() {
            return "nvl";
        }

        @Override
        protected float func(int doc, FunctionValues vals) {
            float v = vals.floatVal(doc);
            if (v == nvlFloatValue) {
                return nvl;
            } else {
                return v;
            }
        }
    };
}

---