return new RelationExpression(); } else if (this.nodeClass == ClassConstants.LogicalExpression_Class) { return new LogicalExpression();
return new RelationExpression(); } else if (this.nodeClass == ClassConstants.LogicalExpression_Class) { return new LogicalExpression();
return new RelationExpression(); } else if (this.nodeClass == ClassConstants.LogicalExpression_Class) { return new LogicalExpression();