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benerator is a framework for creating realistic and valid high-volume test data, used for testing (unit/integration/load) and showcase setup. Metadata constraints are imported from systems and/or configuration files. Data can imported from and exported to files and systems, anonymized or generated from scratch. Domain packages provide reusable generators for creating domain-specific data as names and addresses internationalizable in language and region. It is strongly customizable with plugins and configuration options.

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/*
 * (c) Copyright 2010 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package org.databene.benerator.script;

import org.databene.commons.ArrayFormat;
import org.databene.commons.Assert;
import org.databene.commons.Context;
import org.databene.commons.Expression;
import org.databene.commons.expression.CompositeExpression;

/**
 * Calculates the sum of two or more expressions.

* Created: 07.10.2010 11:24:34 * @since 0.6.4 * @author Volker Bergmann */ public class SumExpression extends CompositeExpression { @SuppressWarnings("unchecked") public SumExpression(Expression... terms) { super((Expression[]) terms); } public Object evaluate(Context context) { Expression[] summands = { terms[0], terms[1] }; Assert.isTrue(summands.length > 1, "At least two summands needed"); Object result = summands[0].evaluate(context); for (int i = 1; i < summands.length; i++) result = ArithmeticEngine.defaultInstance().add(result, summands[i].evaluate(context)); return result; } @Override public String toString() { return "(" + ArrayFormat.format(" + ", terms) + ")"; } }