Examples of Aggregator

ar.Aggregator
An Aggregator convert glyphs into aggregate items for a specific view. The aggregator is defined such that it may be used in a fold-like operation where agg.combine(x,y, agg.combine(...), V) is a valid construction. The intended usage model is to instantiate an aggregator once per glyphset and repeatedly apply the aggregator to each pixel in the space. IN -- The type of the data element on the glyph OUT -- The type of aggregates produced
cascading.operation.Aggregator
An Aggregator takes the set of all values associated with a unique grouping and returns zero or more values. {@link cascading.operation.aggregator.MaxValue}, {@link cascading.operation.aggregator.MinValue}, {@link cascading.operation.aggregator.Count}, and {@link cascading.operation.aggregator.Average} are good examples.
Aggregator implementations should be reentrant. There is no guarantee an Aggregator instance will be executed in a unique vm, or by a single thread. The {@link #start(cascading.flow.FlowProcess,AggregatorCall)}method provides a mechanism for maintaining a 'context' object to hold intermediate values.
Note {@link TupleEntry} instances are reused internally so should not be stored. Instead use the TupleEntry or Tuplecopy constructors to make safe copies.
Since Aggregators can be chained, and Cascading pipelines all operation results, any Aggregators coming ahead of the current Aggregator must return a value before the {@link #complete(cascading.flow.FlowProcess,AggregatorCall)}method on this Aggregator is called. Subsequently, if any previous Aggregators return more than one Tuple result, this complete() method will be called for each Tuple emitted.
Thus it is a best practice to implement a {@link Buffer} when emitting more than one, or zero Tuple results. @see AggregatorCall @see OperationCall
com.asakusafw.dmdl.thundergate.model.Aggregator
com.asakusafw.modelgen.model.Aggregator
com.facebook.presto.operator.AggregationOperator.Aggregator
com.hp.hpl.jena.sparql.expr.aggregate.Aggregator
An Aggregator is the processor for the whole result stream. BindingKeys identify which section of a group we're in.
com.salesforce.phoenix.expression.aggregator.Aggregator
Interface to abstract the incremental calculation of an aggregated value. @author jtaylor @since 0.1
net.opentsdb.core.Aggregator
A function capable of aggregating multiple {@link DataPoints} together.
All aggregators must be stateless. All they can do is run through a sequence of {@link Longs Longs} or {@link Doubles Doubles} and return anaggregated value.
org.apache.accumulo.core.iterators.aggregation.Aggregator
@deprecated since 1.4, replaced by {@link org.apache.accumulo.core.iterators.Combiner}
org.apache.camel.processor.Aggregator
emq.apache.org/camel/aggregator.html">Aggregator pattern where a batch of messages are processed (up to a maximum amount or until some timeout is reached) and messages for the same correlation key are combined together using some kind of {@link AggregationStrategy ) (by default the latest message is used) to compress many message exchanges * into a smaller number of exchanges.
A good example of this is stock market data; you may be receiving 30,000 messages/second and you may want to throttle it right down so that multiple messages for the same stock are combined (or just the latest message is used and older prices are discarded). Another idea is to combine line item messages together into a single invoice message.} @version $Revision: 1.1 $ @param correlationExpression the expression used to calculate the correlationkey. For a JMS message this could be the expression header("JMSDestination") or header("JMSCorrelationID")
org.apache.hadoop.chukwa.database.Aggregator
org.apache.jackrabbit.vault.fs.api.Aggregator
Defines an artifact aggregator. It provides the {@link Aggregate} with therespective artifacts depending on the implementation and content.
org.apache.lucene.facet.old.Aggregator
Aggregates the categories of documents given to {@link #aggregate(int,float,IntsRef)}. Note that the document IDs are local to the reader given to {@link #setNextReader(AtomicReaderContext)}. @lucene.experimental
org.apache.lucene.facet.search.Aggregator
Aggregates the categories of documents given to {@link #aggregate(int,float,IntsRef)}. Note that the document IDs are local to the reader given to {@link #setNextReader(AtomicReaderContext)}. @lucene.experimental
org.apache.lucene.facet.search.aggregator.Aggregator
An Aggregator is the analogue of Lucene's Collector (see {@link org.apache.lucene.search.Collector}), for processing the categories belonging to a certain document. The Aggregator is responsible for doing whatever it wishes with the categories it is fed, e.g., counting the number of times that each category appears, or performing some computation on their association values.
Much of the function of an Aggregator implementation is not described by this interface. This includes the constructor and getter methods to retrieve the results of the aggregation. @lucene.experimental
org.apache.phoenix.expression.aggregator.Aggregator
Interface to abstract the incremental calculation of an aggregated value. @since 0.1
org.elasticsearch.search.aggregations.Aggregator
org.yaac.server.egql.evaluator.aggregator.Aggregator
@author Max Zhu (thebbsky@gmail.com)
simplenlg.aggregation.Aggregator
An Aggregator performs aggregation on clauses, by applying a set of prespecified rules on them and returning the result. @author Albert Gatt, University of Malya & University of Aberdeen
storm.trident.operation.Aggregator

Examples of org.apache.jackrabbit.vault.fs.api.Aggregator

    }


    private boolean needsDir(Aggregate aggregate) throws RepositoryException, PathNotFoundException,
            ValueFormatException {


        Aggregator aggregator = fs.getAggregateManager().getAggregator(aggregate.getNode(), null);
        boolean needsDir = true;
        if (aggregator instanceof FileAggregator) {
            needsDir = false;
            // TODO - copy-pasted from FileAggregator, and really does not belong here...
            Node content = aggregate.getNode();

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Examples of org.apache.jackrabbit.vault.fs.api.Aggregator

     */
    public void dump(DumpContext ctx, boolean isLast) {
        ctx.println(isLast, "aggregators");
        ctx.indent(isLast);
        for (Iterator<Aggregator> iter = aggregators.iterator(); iter.hasNext();) {
            Aggregator a = iter.next();
            a.dump(ctx, !iter.hasNext());
        }
        ctx.outdent();
    }

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Examples of org.apache.jackrabbit.vault.fs.api.Aggregator

    private void processAggregate(Element elem) throws ConfigurationException {
        String type = elem.getAttribute("type");
        if (type == null || type.equals("")) {
            type = "generic";
        }
        Aggregator aggregator = Registry.getInstance().createAggregator(type);
        if (aggregator == null) {
            fail("Aggregator of type " + type + " is not registered.", elem);
        }
        if (aggregator instanceof GenericAggregator) {
            GenericAggregator ga = (GenericAggregator) aggregator;

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Examples of org.apache.jackrabbit.vault.fs.api.Aggregator

            boolean isIncluded = mgr.getWorkspaceFilter().contains(path);
            if (coverSet == null && !isAncestor) {
                continue;
            }
            // check if another aggregator can handle this node
            Aggregator a = mgr.getAggregator(n, path);
            // - if the aggregator is null
            // - or the aggregator is the same as ours or the default
            // - and if we include the content as well
            // - then don't use the matched aggregator
            if ((a == null)
                    || ((a == aggregator || a.isDefault())
                        && (aggregator.includes(getNode(), n, path)))) {
                // if workspace does not include this node, ignore it
                if (!isIncluded && !isAncestor) {
                    continue;
                }

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Examples of org.apache.jackrabbit.vault.fs.api.Aggregator

        workspaceFilter = wspFilter;
        aggregatorProvider = new AggregatorProvider(config.getAggregators());
        artifactHandlers = Collections.unmodifiableList(config.getHandlers());


        // init root node
        Aggregator rootAggregator = rootNode.getDepth() == 0
                ? new RootAggregator()
                : getAggregator(rootNode, null);
        root = new AggregateImpl(this, rootNode.getPath(), rootAggregator);


        // setup node types

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Examples of org.apache.lucene.facet.old.Aggregator

    OldFacetsAccumulator sfa = new OldFacetsAccumulator(newSearchParams, indexReader, taxonomy) {
      @Override
      protected HashMap<CategoryListIterator, Aggregator> getCategoryListMap(
          FacetArrays facetArrays, int partition) throws IOException {
        
        Aggregator aggregator = new CountingAggregator(counts[partition]);
        HashMap<CategoryListIterator, Aggregator> map = new HashMap<CategoryListIterator, Aggregator>();
        for (CategoryListParams clp: facetIndexingParams.getAllCategoryListParams()) {
          map.put(clp.createCategoryListIterator(partition), aggregator);
        }
        return map;

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Examples of org.apache.lucene.facet.search.Aggregator

    StandardFacetsAccumulator sfa = new StandardFacetsAccumulator(newSearchParams, indexReader, taxonomy) {
      @Override
      protected HashMap<CategoryListIterator, Aggregator> getCategoryListMap(
          FacetArrays facetArrays, int partition) throws IOException {
        
        Aggregator aggregator = new CountingAggregator(counts[partition]);
        HashMap<CategoryListIterator, Aggregator> map = new HashMap<CategoryListIterator, Aggregator>();
        for (CategoryListParams clp: facetIndexingParams.getAllCategoryListParams()) {
          map.put(clp.createCategoryListIterator(partition), aggregator);
        }
        return map;

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Examples of org.apache.lucene.facet.search.aggregator.Aggregator

    FacetsAccumulator fe = new StandardFacetsAccumulator(newSearchParams, indexReader, taxonomy) {
      @Override
      protected HashMap<CategoryListIterator, Aggregator> getCategoryListMap(
          FacetArrays facetArrays, int partition) throws IOException {
        
        Aggregator aggregator = new CountingAggregator(counts[partition]);
        HashMap<CategoryListIterator, Aggregator> map = new HashMap<CategoryListIterator, Aggregator>();
        for (CategoryListParams clp: facetIndexingParams.getAllCategoryListParams()) {
          final CategoryListIterator cli = clIteraor(clCache, clp, indexReader, partition);
          map.put(cli, aggregator);
        }

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Examples of org.apache.lucene.facet.search.aggregator.Aggregator

      CategoryListIterator categoryList = entry.getKey();
      if (!categoryList.init()) {
        continue;
      }


      Aggregator categorator = entry.getValue();
      ScoredDocIDsIterator iterator = docids.iterator();
      while (iterator.next()) {
        int docID = iterator.getDocID();
        if (!categoryList.skipTo(docID)) {
          continue;
        }
        categorator.setNextDoc(docID, iterator.getScore());
        long ordinal;
        while ((ordinal = categoryList.nextCategory()) <= Integer.MAX_VALUE) {
          categorator.aggregate((int) ordinal);
        }
      }
    }
  }

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Examples of org.apache.lucene.facet.search.aggregator.Aggregator

      int partition) throws IOException {
    
    HashMap<CategoryListIterator, Aggregator> categoryLists = new HashMap<CategoryListIterator, Aggregator>();


    for (FacetRequest facetRequest : searchParams.getFacetRequests()) {
      Aggregator categoryAggregator = facetRequest.createAggregator(
          isUsingComplements, facetArrays, indexReader,  taxonomyReader);


      CategoryListIterator cli = 
        facetRequest.createCategoryListIterator(indexReader, taxonomyReader, searchParams, partition);
      
      // get the aggregator
      Aggregator old = categoryLists.put(cli, categoryAggregator);


      if (old != null && !old.equals(categoryAggregator)) {
        // TODO (Facet): create a more meaningful RE class, and throw it.
        throw new RuntimeException(
        "Overriding existing category list with different aggregator. THAT'S A NO NO!");
      }
      // if the aggregator is the same we're covered

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