28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
[[java-query-dsl-function-score-query]]
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==== Function Score Query
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See {ref}/query-dsl-function-score-query.html[Function Score Query].
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To use `ScoreFunctionBuilders` just import them in your class:
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[source,java]
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--------------------------------------------------
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import static org.elasticsearch.index.query.functionscore.ScoreFunctionBuilders.*;
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--------------------------------------------------
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[source,java]
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--------------------------------------------------
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FilterFunctionBuilder[] functions = {
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new FunctionScoreQueryBuilder.FilterFunctionBuilder(
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matchQuery("name", "kimchy"), <1>
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randomFunction("ABCDEF")), <2>
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new FunctionScoreQueryBuilder.FilterFunctionBuilder(
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exponentialDecayFunction("age", 0L, 1L)) <3>
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};
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QueryBuilder qb = QueryBuilders.functionScoreQuery(functions);
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--------------------------------------------------
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<1> Add a first function based on a query
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<2> And randomize the score based on a given seed
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<3> Add another function based on the age field
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