# Custom attributes don't show up in WSDL

**URL:** https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223
**Category:** Remoting SDK
**Tags:** delphi, codefirst, soap
**Created:** [August 29, 2019, 2:06pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223 "2019-08-29T14:06:19Z")
**Posts on this page:** 10
**Page:** 1

<div class="post-metadata">

### Author: ![s.vanroye](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/s/7feea3/32.png) [@s.vanroye](https://talk.remobjects.com/u/s.vanroye)
#### Post date: [August 29, 2019, 2:06pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/1 "2019-08-29T14:06:20Z")

</div>

Hello everyone,

I’m building a proof-of-concept soap webservice on which or descision will be based if we buy the Remoting SDK or not. The last hurdle appears to be marking fields in the wsdl as optional.

So far I have been able to figure out that you can do this by using the attributes “minOccurs” and “maxOccurs” in your WSDL. For Example:

```
<xs:complexType name="CollectionContainerType">
 <xs:sequence>
  <xs:element minOccurs="0" maxOccurs="1" name="IdContainer" type="xs:string"/>
  <xs:element minOccurs="1" maxOccurs="1" name="IdSupplierContainer" type="xs:unsignedInt"/>
  <xs:element minOccurs="0" maxOccurs="1" name="IdSubContainer" type="xs:string"/>
 </xs:sequence>
</xs:complexType>

```

I am using codefirst, since this was the recomended way when building new services. As I have found you can decorate your class like this:

```
  CodeValuePairType = class(TROComplexType)
  private
    FCode: Cardinal;
    FValue: string;
  published
    [ROCustom('minOccurs','1')]
    [ROCustom('maxOccurs','1')]
    property Code: Cardinal read FCode write FCode;
    [ROCustom('minOccurs','0')]
    [ROCustom('maxOccurs','1')]
    property Value: string read FValue write FValue;
  end;

```

Note that the condecompletion in Delphi gives ROCustom_Attribute_, but the endresult is in both cases that in the wsdl not a single custom attribute is to be seen:

```
     <xs:complexType name="CodeValuePairType">
        <xs:sequence>
           <xs:element name="Code" type="xs:int"/>
           <xs:element name="Value" type="xs:string"/>
        </xs:sequence>
     </xs:complexType>

```

What am I doing wrong?

---

<div class="post-metadata">

### Author: ![EvgenyK](https://talk.remobjects.com/user_avatar/talk.remobjects.com/evgenyk/32/16_2.png) [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [August 29, 2019, 2:43pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/3 "2019-08-29T14:43:11Z")

</div>

Hi,

If you declare struct as

```auto
  [ROCustom('IsSimpleTypeExtension','1')]
  CodeValuePairType_Value_Optional = class(TROComplexType)
  private
    FValue: string;
  published
    property Value: string read FValue write FValue;
  end;

  CodeValuePairType = class(TROComplexType)
  private
    FCode: Cardinal;
    FValue: CodeValuePairType_Value_Optional;
  published
    property Code: Cardinal read FCode write FCode;
    property Value: CodeValuePairType_Value_Optional read FValue write FValue;
  end;

```

it will be generated as

```auto
<xs:complexType name="CodeValuePairType">
  <xs:sequence>
    <xs:element name="Code" type="xs:int"></xs:element>
    <xs:element name="Value" type="xs:string" minOccurs="0" maxOccurs="1"></xs:element>
  </xs:sequence>
</xs:complexType>

```

* * *

Note: we don’t generate `minOccurs="1" maxOccurs="1"` so

```auto
<xs:element name="Code" minOccurs="1" maxOccurs="1" type="xs:int"></xs:element>

```

will be generated as

```auto
<xs:element name="Code" type="xs:int"></xs:element>

```

---

<div class="post-metadata">

### Author: ![s.vanroye](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/s/7feea3/32.png) [@s.vanroye](https://talk.remobjects.com/u/s.vanroye)
#### Post date: [August 29, 2019, 3:20pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/4 "2019-08-29T15:20:05Z")

</div>

Hey Evgeny,

That seems to work thanks!

Two small remarks:

Shouldn’t the approach I tried also work? I tried using the Service Builder, where you can manage custom attributes in the UI. When I let it genereate my interface for delphi I get the same declaration as the one I showed in my original post.

Second, where is the approach you present documented? I can see that it works, but can not yet understand _why_ 😁 So I would like to read up on it, and see what other possibilities this technique has.

---

<div class="post-metadata">

### Author: ![EvgenyK](https://talk.remobjects.com/user_avatar/talk.remobjects.com/evgenyk/32/16_2.png) [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [August 29, 2019, 3:24pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/5 "2019-08-29T15:24:22Z")

</div>

Hi,

```auto
    [ROCustom('minOccurs','1')]
    [ROCustom('maxOccurs','1')]

```

these attributes will work only for arrays.  
for struct - they are ignored.

if you import your wsdl with ServiceBuilder, it will also create additional struct for simple type element that have `minOccurs="0" maxOccurs="1"`

---

<div class="post-metadata">

### Author: ![s.vanroye](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/s/7feea3/32.png) [@s.vanroye](https://talk.remobjects.com/u/s.vanroye)
#### Post date: [September 2, 2019, 2:49pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/6 "2019-09-02T14:49:47Z")

</div>

Ok, that worked, but This leads to another problem. I have a class declared as follows:

```
  ContainerSystemInformationType = class(TROComplexType)
  private
    [...]
    function GetSystemInformation: CodeValuePairType_SystemInformation_Array;
  protected
    [...]
    property int_SystemInformation: CodeValuePairType_SystemInformation_Array read fSystemInformation;
  public
    [...]
  published
    [...]
    {$IFDEF RO_RTTI_Support}
    [ROCustom('soapname', 'SystemInformation')]
    {$ENDIF}
    property SystemInformation: CodeValuePairType_SystemInformation_Array read GetSystemInformation write fSystemInformation;
  end;

```

With CodeValuePairType\_SystemInformation\_Array declared as:

```
  {$IFNDEF RO_GenericArray}
  {$IFDEF RO_RTTI_Support}
  [ROCustom('minoccurs', '0')]
  [ROCustom('importedfromnamespace', 'http://www.stosag.nl/standard/2-1/CommonComponents')]
  [ROCustom('maxoccurs', '-1')]
  [ROCustom('anonymous', '1')]
  [ROCustom('soapname', 'CodeValuePairType')]
  [ROCustom('elementname', 'SystemInformation')]
  [RONamespace('http://www.stosag.nl/webservices/2016-1//CC-TransactionAndSystemInformation')]
  {$ENDIF}
  CodeValuePairType_SystemInformation_Array = class(TROArray)
[...]

```

This results in the following WSDL:

```
 <xs:complexType name="ContainerSystemInformationType">
    <xs:sequence>
       [...]
       <xs:element name="SystemInformation" type="tns:CodeValuePairType_SystemInformation_Array"/>
    </xs:sequence>
 </xs:complexType>

```

My problem is the CodeValuePairType\_SystemInformation\_Array datatype used as an intermediary. According to the standard I have to adhere to I **should** end up with a WSDL as follows:

```
<xs:complexType name="ContainerSystemInformationType">
    <xs:sequence>
        [...]          
        <xs:element name="SystemInformation" type="tns:CodeValuePairType" minOccurs="0" maxOccurs="unbounded">
    </xs:sequence>
 </xs:complexType>

```

I’ve tried, but failed to define my object in such a way that I end up with the WSDL following said standard.

---

<div class="post-metadata">

### Author: ![EvgenyK](https://talk.remobjects.com/user_avatar/talk.remobjects.com/evgenyk/32/16_2.png) [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [September 2, 2019, 2:53pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/7 "2019-09-02T14:53:37Z")

</div>

can you confirm that you haven’t `RO_GenericArray` defined?

---

<div class="post-metadata">

### Author: ![s.vanroye](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/s/7feea3/32.png) [@s.vanroye](https://talk.remobjects.com/u/s.vanroye)
#### Post date: [September 3, 2019, 8:17am UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/8 "2019-09-03T08:17:58Z")

</div>

RO\_GenericArray is OFF as far as I can tell.

---

<div class="post-metadata">

### Author: ![EvgenyK](https://talk.remobjects.com/user_avatar/talk.remobjects.com/evgenyk/32/16_2.png) [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [September 5, 2019, 12:40pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/9 "2019-09-05T12:40:18Z")

</div>

Hi,

I have

```auto
<xs:complexType name="CodeValuePairType_SystemInformation_Array">
  <xs:sequence>
    <xs:element name="SystemInformation" minOccurs="0" maxOccurs="unbounded" type="tns:CodeValuePairType"/>
  </xs:sequence>
</xs:complexType>

```

this is for

```auto
  [ROCustom('IsSimpleTypeExtension','1')]
  CodeValuePairType_Value_Optional = class(TROComplexType)
  private
    FValue: string;
  published
    property Value: string read FValue write FValue;
  end;

  CodeValuePairType = class(TROComplexType)
  private
    FCode: Cardinal;
    FValue: CodeValuePairType_Value_Optional;
  published
    property Code: Cardinal read FCode write FCode;
    property Value: CodeValuePairType_Value_Optional read FValue write FValue;
  end;

  [ROCustom('minoccurs', '0')]
  [ROCustom('importedfromnamespace', 'http://www.stosag.nl/standard/2-1/CommonComponents')]
  [ROCustom('maxoccurs', '-1')]
  [ROCustom('anonymous', '1')]
  [ROCustom('soapname', 'CodeValuePairType')]
  [ROCustom('elementname', 'SystemInformation')]
  [RONamespace('http://www.stosag.nl/webservices/2016-1//CC-TransactionAndSystemInformation')]
  CodeValuePairType_SystemInformation_Array = class(TROArray<CodeValuePairType>);

  ContainerSystemInformationType = class(TROComplexType)
  private
    fSystemInformation: CodeValuePairType_SystemInformation_Array;
  protected
    property int_SystemInformation: CodeValuePairType_SystemInformation_Array read fSystemInformation;
  public
  published
    [ROCustom('soapname', 'SystemInformation')]
    property SystemInformation: CodeValuePairType_SystemInformation_Array read fSystemInformation write fSystemInformation;
  end;

```

---

<div class="post-metadata">

### Author: ![s.vanroye](https://talk.remobjects.com/letter_avatar_proxy/v4/letter/s/7feea3/32.png) [@s.vanroye](https://talk.remobjects.com/u/s.vanroye)
#### Post date: [September 9, 2019, 9:06am UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/10 "2019-09-09T09:06:20Z")

</div>

Hi there,

Sorry for the delayed response, I have been unvailable for a few days.

The issue I have is that the systeminformation element is of the type CodeValuePairType\_SystemInformation\_Array, while it should be of the CodeValuePairType type with minoccurs and maxoccurs set directly on the systeminformation element.

The problem I have is that the standard defines a certain wsdl which is shared between different parties and should have the exact same structure ☹ The additional array would break this.

---

<div class="post-metadata">

### Author: ![EvgenyK](https://talk.remobjects.com/user_avatar/talk.remobjects.com/evgenyk/32/16_2.png) [@EvgenyK](https://talk.remobjects.com/u/EvgenyK)
#### Post date: [September 9, 2019, 12:39pm UTC](https://talk.remobjects.com/t/custom-attributes-dont-show-up-in-wsdl/20223/11 "2019-09-09T12:39:23Z")

</div>

Hi,

Remoting SDK will create this element as array.

for example, if original WSDL contains

```auto
<element name="ApexClassIds" nillable="true" minOccurs="0" maxOccurs="unbounded" type="xsd:string"/>

```

this item will be generated in Remoting SDK as

```auto
<xs:element name="ApexClassIds" type="tns:ID_ApexClassIds_Array" />

```

```auto
<xs:complexType name="ID_ApexClassIds_Array">
  <xs:sequence>
      <xs:element name="ApexClassIds" minOccurs="0" maxOccurs="unbounded" type="xs:string" />
  </xs:sequence>
</xs:complexType>

```

Can you retest generated soap request, if array is used here?