org.hcjf.layers.query.functions.BaseQueryAggregateFunctionLayer Maven / Gradle / Ivy

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package org.hcjf.layers.query.functions;

import org.hcjf.layers.query.Queryable;
import org.hcjf.layers.query.model.QueryReturnField;
import org.hcjf.layers.query.model.QueryReturnFunction;
import org.hcjf.properties.SystemProperties;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 * @author javaito
 */
public abstract class BaseQueryAggregateFunctionLayer extends BaseFunctionLayer implements QueryAggregateFunctionLayerInterface {

    public BaseQueryAggregateFunctionLayer(String implName) {
        super(SystemProperties.get(SystemProperties.Query.Function.NAME_PREFIX) + implName);
    }

    protected Object resolveValue(Object row, Object value) {
        Object result = value;
        if(result instanceof QueryReturnField) {
            result = ((QueryReturnField)result).resolve(row);
        } else if(result instanceof QueryReturnFunction) {
            result = new Queryable.IntrospectionConsumer<>().get(row, ((QueryReturnFunction)result), null);
        }
        return result;
    }
}