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   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
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   *
   *    https://www.apache.org/licenses/LICENSE-2.0
   *
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  package org.apache.cayenne.exp.parser;
  
  import java.math.BigDecimal;
  import java.math.RoundingMode;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.Iterator;
  
  import org.apache.cayenne.exp.Expression;
  
  /**
   * "Divide" expression.
   * 
   * @since 1.1
   */
  public class ASTDivide extends EvaluatedMathNode {
  
  	private static final long serialVersionUID = -5086569683844539310L;
  
  	ASTDivide(int id) {
  		super(id);
  	}
  
  	public ASTDivide() {
  		super(ExpressionParserTreeConstants.JJTDIVIDE);
  	}
  
  	public ASTDivide(Object... nodes) {
  		this(Arrays.asList(nodes));
  	}
  
  	public ASTDivide(Collection<?> nodes) {
  		super(ExpressionParserTreeConstants.JJTDIVIDE);
  		int len = nodes.size();
  		Iterator<?> it = nodes.iterator();
  		for (int i = 0; i < len; i++) {
  			jjtAddChild(wrapChild(it.next()), i);
  		}
  
  		connectChildren();
  	}
  
  	@Override
  	protected BigDecimal op(BigDecimal result, BigDecimal arg) {
  		return result.divide(arg, RoundingMode.HALF_EVEN);
  	}
  
  	/**
  	 * Creates a copy of this expression node, without copying children.
  	 */
  	@Override
  	public Expression shallowCopy() {
  		return new ASTDivide(id);
  	}
  
  	@Override
  	protected String getExpressionOperator(int index) {
  		return "/";
  	}
  
  	@Override
  	public int getType() {
  		return Expression.DIVIDE;
  	}
  
  	@Override
  	public void jjtClose() {
  		super.jjtClose();
  		flattenTree();
  	}
  }
  