Examples of org.apache.lucene.search.grouping.function.FunctionAllGroupsCollector

Package org.apache.lucene.search.grouping.function

Examples of org.apache.lucene.search.grouping.function.FunctionAllGroupsCollector

org.apache.lucene.search.grouping.function.FunctionAllGroupsCollector
A collector that collects all groups that match the query. Only the group value is collected, and the order is undefined. This collector does not determine the most relevant document of a group.
Implementation detail: Uses {@link ValueSource} and {@link FunctionValues} to retrieve thefield values to group by. @lucene.experimental

    AbstractAllGroupsCollector<?> selected;
    if (random().nextBoolean()) {
      selected = new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      selected = new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }


    if (VERBOSE) {
      System.out.println("Selected implementation: " + selected.getClass().getName());
    }

View Full Code Here

    final AbstractAllGroupsCollector allGroupsCollector;
    final AbstractAllGroupHeadsCollector allGroupHeadsCollector;
    if (groupFunction != null) {
      firstPassCollector = new FunctionFirstPassGroupingCollector(groupFunction, valueSourceContext, groupSort, topN);
      if (allGroups) {
        allGroupsCollector = new FunctionAllGroupsCollector(groupFunction, valueSourceContext);
      } else {
        allGroupsCollector = null;
      }
      if (allGroupHeads) {
        allGroupHeadsCollector = new FunctionAllGroupHeadsCollector(groupFunction, valueSourceContext, sortWithinGroup);

View Full Code Here

                                                              String groupField) {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }
  }

View Full Code Here

    AbstractAllGroupsCollector<?> selected;
    if (random().nextBoolean()) {
      selected = new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      selected = new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }


    if (VERBOSE) {
      System.out.println("Selected implementation: " + selected.getClass().getName());
    }

View Full Code Here

                                                              String groupField) {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }
  }

View Full Code Here

                                                              String groupField) {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }
  }

View Full Code Here

                                                              String groupField) {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }
  }

View Full Code Here

    final AbstractAllGroupsCollector allGroupsCollector;
    final AbstractAllGroupHeadsCollector allGroupHeadsCollector;
    if (groupFunction != null) {
      firstPassCollector = new FunctionFirstPassGroupingCollector(groupFunction, valueSourceContext, groupSort, topN);
      if (allGroups) {
        allGroupsCollector = new FunctionAllGroupsCollector(groupFunction, valueSourceContext);
      } else {
        allGroupsCollector = null;
      }
      if (allGroupHeads) {
        allGroupHeadsCollector = new FunctionAllGroupHeadsCollector(groupFunction, valueSourceContext, sortWithinGroup);

View Full Code Here

    AbstractAllGroupsCollector<?> selected;
    if (random().nextBoolean()) {
      selected = new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      selected = new FunctionAllGroupsCollector(vs, new HashMap<>());
    }


    if (VERBOSE) {
      System.out.println("Selected implementation: " + selected.getClass().getName());
    }

View Full Code Here

                                                              String groupField) {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionAllGroupsCollector(vs, new HashMap<>());
    }
  }

View Full Code Here

TOP

Related Classes of org.apache.lucene.search.grouping.function.FunctionAllGroupsCollector

org.apache.lucene.queries.function.FunctionValues

org.apache.lucene.search.grouping.AllGroupsCollectorTest

org.apache.lucene.search.grouping.GroupingSearch

org.apache.lucene.search.grouping.TestGrouping

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.