Examples of mondrian.rolap.agg.Aggregation

mondrian.rolap.agg.Aggregation
rian-release/3.2/src/main/mondrian/rolap/agg/Aggregation.java#3 $ @since 28 August, 2001

     * @param aggregationKey this is the contrained column bitkey
     */
    public Aggregation lookupOrCreateAggregation(
        AggregationKey aggregationKey)
    {
        Aggregation aggregation = lookupAggregation(aggregationKey);


        if (aggregation == null) {
            aggregation = new Aggregation(aggregationKey);


            this.localAggregations.get().put(aggregationKey, aggregation);


            // Let the change listener get the opportunity to register the
            // first time the aggregation is used

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     *
     * <p>Must be called from synchronized context.
     */
    public Aggregation lookupAggregation(AggregationKey aggregationKey) {
        // First try thread local cache
        Aggregation aggregation = localAggregations.get().get(aggregationKey);
        if (aggregation != null) {
            return aggregation;
        }


        if (cacheAggregations && !RolapStar.disableCaching) {

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                    for (Map.Entry<AggregationKey, Aggregation> e
                        : sharedAggregations.entrySet())
                    {
                        AggregationKey aggregationKey = e.getKey();


                        Aggregation aggregation = e.getValue();
                        if (changeListener.isAggregationChanged(aggregation)) {
                            // Create new thread local aggregation
                            // This thread will renew aggregations
                            // And these will be checked in if all queries
                            // that are currently using these aggregates
                            // are finished
                            aggregation = new Aggregation(aggregationKey);


                            localAggregations.get().put(
                                aggregationKey, aggregation);
                        }
                    }

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                Iterator<Map.Entry<AggregationKey, Aggregation>>
                    it = pendingAggregations.entrySet().iterator();
                while (it.hasNext()) {
                    Map.Entry<AggregationKey, Aggregation> e = it.next();
                    AggregationKey aggregationKey = e.getKey();
                    Aggregation aggregation = e.getValue();
                    // In case this aggregation is not requested by anyone
                    // this aggregation may be pushed into global cache
                    // otherwise put it in pending cache, that will be pushed
                    // when another query finishes
                    if (!isAggregationRequested(aggregationKey)) {
                        pushAggregateModification(
                            aggregationKey, aggregation, sharedAggregations);
                        it.remove();
                    }
                }
                // Push thread local modifications
                it = localAggregations.get().entrySet().iterator();
                while (it.hasNext()) {
                    Map.Entry<AggregationKey, Aggregation> e = it.next();
                    AggregationKey aggregationKey = e.getKey();
                    Aggregation aggregation = e.getValue();
                    // In case this aggregation is not requested by anyone
                    // this aggregation may be pushed into global cache
                    // otherwise put it in pending cache, that will be pushed
                    // when another query finishes
                    Map<AggregationKey, Aggregation> targetMap;

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                        it = destAggregations.entrySet().iterator();
                while (it.hasNext()) {
                    Map.Entry<AggregationKey, Aggregation> e =
                        it.next();
                    AggregationKey aggregationKey = e.getKey();
                    Aggregation aggregation = e.getValue();


                    if (localAggregationKey.equals(aggregationKey)) {
                        if (localAggregation.getCreationTimestamp().after(
                            aggregation.getCreationTimestamp()))
                        {
                            it.remove();
                        } else {
                            // Entry is newer, do not replace
                            found = true;

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