/// <summary>
 /// Initializes a new instance of the <see cref="BinaryLogicalOperation"/> class.
 /// </summary>
 /// <param name="leftOperand">The left operand.</param>
 /// <param name="rightOperand">The right operand.</param>
 /// <param name="operationType">The operation type.</param>
 public BinaryLogicalOperation(FormulaOperation leftOperand, FormulaOperation rightOperand, WFSBinaryLogicalOperator operationType)
 {
     LeftOperand   = leftOperand;
     RightOperand  = rightOperand;
     OperationType = operationType;
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="UnaryLogicalOperation"/> class.
 /// </summary>
 /// <param name="operand">The operand.</param>
 /// <param name="operationType">The operation type.</param>
 public UnaryLogicalOperation(FormulaOperation operand, WFSUnaryLogicalOperator operationType)
 {
     Operand       = operand;
     OperationType = operationType;
 }