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 /*
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.operator.aggregation;
import static com.google.common.base.Preconditions.checkNotNull;
        implements FunctionFactory
    private final List<ParametricFunctionaggregations;
    public static GenericAggregationFunctionFactory fromAggregationDefinition(Class<?> clazzTypeManager typeManager)
    {
        FunctionListBuilder builder = new FunctionListBuilder(typeManager);
        for (InternalAggregationFunction aggregation : new AggregationCompiler(typeManager).generateAggregationFunctions(clazz)) {
            builder.aggregate(aggregation);
        }
        return new GenericAggregationFunctionFactory(builder.getFunctions());
    }
    {
        this. = ImmutableList.copyOf(checkNotNull(aggregations"aggregations is null"));
    }
    @Override
    {
        return ;
    }
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