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package org.apache.cayenne.exp.parser;

import java.util.Collection;
import java.util.Collections;

import org.apache.cayenne.exp.Expression;

/**
 * @since 4.0
 */
public class ASTMax extends ASTAggregateFunctionCall {

    ASTMax(int id) {
        super(id, "MAX");
    }

    public ASTMax(Expression expression) {
        super(ExpressionParserTreeConstants.JJTMAX, "MAX", expression);
    }

    @Override
    public Expression shallowCopy() {
        return new ASTMax(id);
    }

    @SuppressWarnings({"rawtypes", "unchecked"})
    @Override
    protected Object evaluateCollection(Collection values) {
        return Collections.max((Collection)values);
    }
}