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package com.bpodgursky.jbool_expressions;

import org.apache.commons.lang.StringUtils;

import java.util.List;

public class And extends NExpression {
  public static final String  EXPR_TYPE = "and";

  private And(List> children) {
    super(children);
  }

  @Override
  protected Expression createInternal(List> children) {
    return new And(children);
  }

  public String toString(){
    return "("+ StringUtils.join(expressions, " & ")+")";
  }

  public static  And of(Expression child1, Expression child2, Expression child3){
    return of(ExprUtil.list(child1, child2, child3));
  }

  public static  And of(Expression child1, Expression child2){
    return of(ExprUtil.list(child1, child2));
  }

  public static  And of(Expression child1){
    return of(ExprUtil.list(child1));
  }

  public static  And of(List> children){
    return new And(children);
  }

  @Override
  public boolean equals(Expression expr) {
    if(!(expr instanceof And)){
      return false;
    }
    And other = (And) expr;

    if(other.expressions.length != expressions.length){
      return false;
    }

    for(int i = 0; i < expressions.length; i++){
      if(!expressions[i].equals(other.expressions[i])){
        return false;
      }
    }
    return true;
  }

  @Override
  public String getExprType() {
    return EXPR_TYPE;
  }
}