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UA-.NETStandard/Tests/Opc.Ua.SourceGeneration.Core.Tests/Resources/TestModel.xml
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Marc Schier 59374fc81d Generate MatrixOf<T> properties for OneOrMoreDimension types (#3625) (#3868) 
# Description

Closes the original PR #3619 TODO and extends the `MatrixOf<T>` opt-in
to every place the source generator previously fell back to `Variant`
for `ValueRank="OneOrMoreDimensions"`.

## Generator changes (`Tools/Opc.Ua.SourceGeneration.Core`)

### Site 1 — DataType structure fields (`DataTypeGenerator.cs`)

Fields declared with matrix rank now render as
`global::Opc.Ua.MatrixOf<T>` instead of `Variant`, mirroring the
existing `ArrayOf<T>` treatment for `Array` rank. Encode/decode is
routed per the field's `DataType`:

| Field `DataType` | Property | Encode | Decode |
| ------------------------------------------------- |
--------------------------------------- |
----------------------------------------------------------- |
-----------------------------------------------------------------------
|
| primitive (`Boolean`, `Int32`, `String`, …) | `MatrixOf<bool>` etc. |
`WriteVariant(name, Variant.From(field));` |
`ReadVariant(name).GetBooleanMatrix();` (etc.) |
| `Structure` / abstract structure | `MatrixOf<ExtensionObject>` |
`WriteVariant(name, Variant.From(field));` |
`ReadVariant(name).GetExtensionObjectMatrix();` |
| concrete `IEncodeable` (e.g. `Vector`) | `MatrixOf<Vector>` |
`WriteEncodeableMatrix(name, field);` |
`ReadEncodeableMatrix<Vector>(name);` |
| typed enum | `MatrixOf<MyEnum>` | `WriteVariant(name,
Variant.From(field));` |
`ReadVariant(name).GetEnumerationMatrix<MyEnum>();` |
| `BaseDataType` / `Number` / `Integer` / `UInteger`|
`MatrixOf<Variant>` | `WriteVariant(name, Variant.From(field));` |
`ReadVariant(name).GetVariantMatrix();` |

### Site 2 — VariableType State classes (`NodeStateGenerator.cs`)

Replaces the original `// TODO: matrixOf;` from #3619. Concrete matrix
variable types now inherit the typed `<MatrixOf<T>>` chain. Standard
model:

- `XYArrayItemState :
ArrayItemState<MatrixOf<XVType>>.Implementation<StructureBuilder<XVType>>`

Abstract bases (`ArrayItemType`, `CubeItemType`, `ImageItemType`,
`NDimensionArrayItemType` — all `DataType="BaseDataType"`) keep the
existing `<T>` early-return.

### Site 3 — Property / Variable instances
(`ModelDesignExtensions.GetNodeStateClassName`)

Adds a `OneOrMoreDimensions` branch after the existing `Array` branch
and refines `IsTemplateParameterRequired` / `IsIndeterminateType` so
matrix-rank concrete types are no longer treated as indeterminate.
Standard model:

- `EnumDictionaryEntries: PropertyState<MatrixOf<NodeId>>`
- `FailureSystemIdentifier: BaseDataVariableState<MatrixOf<byte>>`

### Site 4 — Method parameters (`ClientApiGenerator` /
`ServerApiGenerator`)

`CollectParameters` opts in to `useMatrixTypeInsteadOfVariant` via
`SupportsMatrixOf()`. Zero standard-service impact (no OPC UA service
declares matrix args).

## Encoder / decoder API

Adds the parameterless overload `MatrixOf<T>
ReadEncodeableMatrix<T>(string? fieldName) where T : IEncodeable, new()`
to `IDecoder` and all implementations (`BinaryDecoder`, `JsonDecoder`,
`XmlDecoder`, `XmlParser`, `PubSubJsonDecoder`), mirroring the existing
`ReadEncodeableArray<T>(string?)` shape so the generator does not need a
runtime encoding-id lookup.

## Consumer migration

-
`Applications/Quickstarts.Servers/ReferenceServer/ReferenceNodeManager.cs`
— `CreateXYArrayItemVariable` updated from
`Variant.FromStructure(ArrayOf.Wrapped(...))` to `new XVType[] { …
}.ToMatrixOf(5)` to match the new typed `XYArrayItemState.Value`
surface.

## Tests added

- **Generator snippet tests**:
`GenerateMatrixValueDataType_EmitsMatrixOfPropertiesAndCalls` (custom
data-type matrix fields) and
`NodeStateGeneratorEmitsMatrixOfTemplateParameterForStandardModel`
(standard-model VariableType + instance types).
- **Encoder round-trip**: new `EncodeableMatrixRoundTripTests` exercises
`WriteEncodeableMatrix` ↔ `ReadEncodeableMatrix<T>(string?)` through
Binary, XML, and parameterless overloads with null-matrix and populated
payloads.
- **Extension tests**: parameterised
`GetDotNetTypeName_OneOrMoreDimensionsValueRankWithBasicDataTypes_ReturnsCorrectMatrixOfType`
and `IsTemplateParameterRequired_OneOrMoreDimensionsWith…` tables;
`SupportsMatrixOf` coverage including `DiagnosticInfo → false` and
`ArgumentNullException` for null receiver.
- **Test resource models** (`TestDataDesign.xml`, `DemoModel.xml`,
`TestModel.xml`): new `MatrixValueDataType` /
`SampleStructureWithMatrixFields` exercise every branch end-to-end
through the existing `GenerateAndCompileDesignFileAsync` integration
test.

## Documentation

`Docs/MigrationGuide.md` — new sub-section "Generated data type fields
with ValueRank=OneOrMoreDimensions" with a per-`BasicDataType` mapping
table, the `IDecoder.ReadEncodeableMatrix<T>(string?)` overload note for
custom decoder implementations, and a sibling block covering
VariableType State classes, property-state instances, and service
parameters with before/after code samples.

## Verification

| Suite (net10.0) | Result |
| --------------- | ------ |
| `Opc.Ua.Types.Tests` | 7553 passed |
| `Opc.Ua.SourceGeneration.Core.Tests` | 3623 passed, 8 skipped
(analyzer-conditional) |
| `Opc.Ua.SourceGeneration.Stack.Tests` | 90 passed |
| `Opc.Ua.SourceGeneration.Tests` | 40 passed |
| `Opc.Ua.Server.Tests` (focused on `ReferenceServer`/`ArrayItem`) | 37
passed |
| Full `UA.slnx` build | 0 errors (42 pre-existing unrelated CA2007
warnings) |

The `// TODO: matrixOf;` comment is gone from `NodeStateGenerator.cs`.

## Related Issues

- Fixes #3625

## Checklist

- [x] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [x] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.
2026-06-12 12:45:39 +02:00

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<?xml version="1.0" encoding="utf-8"?>
<opc:ModelDesign
xmlns:uax="http://opcfoundation.org/UA/2008/02/Types.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ua="http://opcfoundation.org/UA/"
xmlns:opc="http://opcfoundation.org/UA/ModelDesign.xsd"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="urn:opcfoundation.org:2024-01:TestModel"
TargetNamespace="urn:opcfoundation.org:2024-01:TestModel"
TargetXmlNamespace="urn:opc-foundation.org:2024-01:TestModel"
TargetVersion="1.05.07"
TargetPublicationDate="2025-12-25T00:00:00Z">
<opc:Namespaces>
<opc:Namespace Name="TestModel" Prefix="TestModel" XmlNamespace="urn:opcfoundation.org:2024-01:TestModelTypes.xsd" XmlPrefix="Model">urn:opcfoundation.org:2024-01:TestModel</opc:Namespace>
<opc:Namespace Name="OpcUa" Prefix="Opc.Ua" Version="1.05.07" PublicationDate="2025-12-25T00:00:00Z" InternalPrefix="Opc.Ua.Server" XmlNamespace="http://opcfoundation.org/UA/2008/02/Types.xsd" XmlPrefix="OpcUa">http://opcfoundation.org/UA/</opc:Namespace>
</opc:Namespaces>
<opc:PermissionSets>
<opc:PermissionSet Name="AuthenticatedUserOnly" >
<opc:RolePermission Role="ua:WellKnownRole_AuthenticatedUser">
<opc:Permission>Browse</opc:Permission>
<opc:Permission>Read</opc:Permission>
<opc:Permission>Write</opc:Permission>
<opc:Permission>Call</opc:Permission>
</opc:RolePermission>
</opc:PermissionSet>
<opc:PermissionSet Name="SecurityAdminOnly" >
<opc:RolePermission Role="ua:WellKnownRole_SecurityAdmin">
<opc:Permission>Browse</opc:Permission>
<opc:Permission>Read</opc:Permission>
<opc:Permission>Write</opc:Permission>
<opc:Permission>Call</opc:Permission>
</opc:RolePermission>
</opc:PermissionSet>
<opc:PermissionSet Name="SeekerOnly" >
<opc:RolePermission Role="Seeker">
<opc:Permission>Browse</opc:Permission>
<opc:Permission>Read</opc:Permission>
</opc:RolePermission>
</opc:PermissionSet>
</opc:PermissionSets>
<opc:DataType SymbolicName="TestAbstractStructure" BaseType="ua:Structure" IsAbstract="true">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestAbstractStructure</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" DataType="ua:Int16" />
<opc:Field Name="B" DataType="ua:Double" />
<opc:Field Name="C" DataType="ua:String" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestConcreteStructure" BaseType="TestAbstractStructure">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestConcreteStructure</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="D" DataType="ua:Int16" />
<opc:Field Name="E" DataType="ua:Double" />
<opc:Field Name="F" DataType="ua:String" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestUnion" BaseType="ua:Union" IsUnion="true">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestUnion</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" DataType="ua:Int16" />
<opc:Field Name="B" DataType="ua:Double" />
<opc:Field Name="C" DataType="ua:String" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestOptionalFields" BaseType="ua:Structure">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestOptionalFields</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" DataType="ua:Int16" IsOptional="true" />
<opc:Field Name="B" DataType="ua:Double" IsOptional="true" />
<opc:Field Name="C" DataType="ua:String" IsOptional="true" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestEnumeration" BaseType="ua:Enumeration">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestEnumeration</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="Invalid" Identifier="0" />
<opc:Field Name="Red" Identifier="2" />
<opc:Field Name="Green" Identifier="4" />
<opc:Field Name="Blue" Identifier="6" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestOptionSet" IsOptionSet="true" BaseType="ua:UInt64">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestOptionSet</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" BitMask="0001" />
<opc:Field Name="B" BitMask="0002" />
<opc:Field Name="C" BitMask="0004" />
<opc:Field Name="D" BitMask="0008" />
<opc:Field Name="E" BitMask="0010" />
<opc:Field Name="F" BitMask="0020" />
<opc:Field Name="G" BitMask="0040" />
<opc:Field Name="H" BitMask="0080" />
<opc:Field Name="I" BitMask="0100" />
<opc:Field Name="J" BitMask="0200" />
<opc:Field Name="K" BitMask="0400" />
<opc:Field Name="L" BitMask="0800" />
<opc:Field Name="M" BitMask="1000" />
<opc:Field Name="N" BitMask="2000" />
<opc:Field Name="O" BitMask="4000" />
<opc:Field Name="P" BitMask="8000" />
<opc:Field Name="Q" BitMask="00010000" />
<opc:Field Name="R" BitMask="00020000" />
<opc:Field Name="S" BitMask="00040000" />
<opc:Field Name="T" BitMask="00080000" />
<opc:Field Name="U" BitMask="00100000" />
<opc:Field Name="V" BitMask="00200000" />
<opc:Field Name="W" BitMask="00400000" />
<opc:Field Name="X" BitMask="00800000" />
<opc:Field Name="Z" BitMask="01000000" />
<opc:Field Name="A1" BitMask="02000000" />
<opc:Field Name="B1" BitMask="04000000" />
<opc:Field Name="C1" BitMask="08000000" />
<opc:Field Name="D1" BitMask="10000000" />
<opc:Field Name="E1" BitMask="20000000" />
<opc:Field Name="F1" BitMask="40000000" />
<opc:Field Name="G1" BitMask="0080000000" />
<opc:Field Name="H1" BitMask="0100000000" />
<opc:Field Name="I1" BitMask="0200000000" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestScalarStructure" BaseType="ua:Structure">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestScalarStructure</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" DataType="ua:Boolean" />
<opc:Field Name="B" DataType="ua:SByte" />
<opc:Field Name="C" DataType="ua:Byte" />
<opc:Field Name="D" DataType="ua:Int16" />
<opc:Field Name="E" DataType="ua:UInt16" />
<opc:Field Name="F" DataType="ua:Int32" />
<opc:Field Name="G" DataType="ua:UInt32" />
<opc:Field Name="H" DataType="ua:Int64" />
<opc:Field Name="I" DataType="ua:UInt64" />
<opc:Field Name="J" DataType="ua:Float" />
<opc:Field Name="K" DataType="ua:Double" />
<opc:Field Name="L" DataType="ua:Guid" />
<opc:Field Name="M" DataType="ua:DateTime" />
<opc:Field Name="N" DataType="ua:String" />
<opc:Field Name="O" DataType="ua:ByteString" />
<opc:Field Name="P" DataType="ua:NodeId" />
<opc:Field Name="Q" DataType="ua:ExpandedNodeId" />
<opc:Field Name="R" DataType="ua:QualifiedName" />
<opc:Field Name="S" DataType="ua:LocalizedText" />
<opc:Field Name="T" DataType="ua:StatusCode" />
<opc:Field Name="U" DataType="ua:XmlElement" />
<opc:Field Name="V" DataType="ua:BaseDataType" />
<opc:Field Name="W" DataType="TestAbstractStructure" AllowSubTypes="true" />
<opc:Field Name="X" DataType="TestConcreteStructure" />
<opc:Field Name="Y" DataType="TestEnumeration" />
<opc:Field Name="Z" DataType="TestOptionSet" />
<opc:Field Name="A1" DataType="TestUnion" />
<opc:Field Name="B1" DataType="TestOptionalFields" />
<opc:Field Name="C1" DataType="ua:DataValue" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestArrayStructure" BaseType="ua:Structure">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestArrayStructure</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" DataType="ua:Boolean" ValueRank="Array" />
<opc:Field Name="B" DataType="ua:SByte" ValueRank="Array" />
<opc:Field Name="C" DataType="ua:Byte" ValueRank="Array" />
<opc:Field Name="D" DataType="ua:Int16" ValueRank="Array" />
<opc:Field Name="E" DataType="ua:UInt16" ValueRank="Array" />
<opc:Field Name="F" DataType="ua:Int32" ValueRank="Array" />
<opc:Field Name="G" DataType="ua:UInt32" ValueRank="Array" />
<opc:Field Name="H" DataType="ua:Int64" ValueRank="Array" />
<opc:Field Name="I" DataType="ua:UInt64" ValueRank="Array" />
<opc:Field Name="J" DataType="ua:Float" ValueRank="Array" />
<opc:Field Name="K" DataType="ua:Double" ValueRank="Array" />
<opc:Field Name="L" DataType="ua:Guid" ValueRank="Array" />
<opc:Field Name="M" DataType="ua:DateTime" ValueRank="Array" />
<opc:Field Name="N" DataType="ua:String" ValueRank="Array" />
<opc:Field Name="O" DataType="ua:ByteString" ValueRank="Array" />
<opc:Field Name="P" DataType="ua:NodeId" ValueRank="Array" />
<opc:Field Name="Q" DataType="ua:ExpandedNodeId" ValueRank="Array" />
<opc:Field Name="R" DataType="ua:QualifiedName" ValueRank="Array" />
<opc:Field Name="S" DataType="ua:LocalizedText" ValueRank="Array" />
<opc:Field Name="T" DataType="ua:StatusCode" ValueRank="Array" />
<opc:Field Name="U" DataType="ua:XmlElement" ValueRank="Array" />
<opc:Field Name="V" DataType="ua:BaseDataType" ValueRank="Array" />
<opc:Field Name="W" DataType="TestAbstractStructure" ValueRank="Array" AllowSubTypes="true" />
<opc:Field Name="X" DataType="TestConcreteStructure" ValueRank="Array" />
<opc:Field Name="Y" DataType="TestEnumeration" ValueRank="Array" />
<opc:Field Name="Z" DataType="TestOptionSet" ValueRank="Array" />
<opc:Field Name="A1" DataType="TestUnion" ValueRank="Array" />
<opc:Field Name="B1" DataType="TestOptionalFields" ValueRank="Array" />
<opc:Field Name="C1" DataType="ua:DataValue" ValueRank="Array" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="TestStructure" BaseType="ua:Structure">
<opc:Extensions>
<opc:Extension>
<tag:Something xmlns:tag="http://tagsrus.net/schemas">TestStructure</tag:Something>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="A" DataType="TestScalarStructure" />
<opc:Field Name="B" DataType="TestArrayStructure" />
<opc:Field Name="C" DataType="TestScalarStructure" ValueRank="Array" />
<opc:Field Name="D" DataType="TestArrayStructure" ValueRank="Array" />
</opc:Fields>
</opc:DataType>
<opc:Object SymbolicName="Seeker" TypeDefinition="ua:RoleType">
<opc:BrowseName>Seeker</opc:BrowseName>
<opc:DisplayName>Seeker</opc:DisplayName>
<opc:Description>The Role is a test role.</opc:Description>
<opc:References>
<opc:Reference IsInverse="true">
<opc:ReferenceType>ua:HasComponent</opc:ReferenceType>
<opc:TargetId>ua:Server_ServerCapabilities_RoleSet</opc:TargetId>
</opc:Reference>
</opc:References>
<opc:Extensions>
<opc:Extension>
<some:Thing xmlns:some="http://tempuri.com/something">Wicked</some:Thing>
</opc:Extension>
</opc:Extensions>
</opc:Object>
<opc:DataType SymbolicName="EnumUnderscoreTest" BaseType="ua:Enumeration" ForceEnumValues="true">
<opc:Fields>
<opc:Field Name="x_x" Identifier="1"/>
<opc:Field Name="_x" Identifier="2"/>
<opc:Field Name="x_" Identifier="3"/>
<opc:Field Name="_" Identifier="4"/>
<opc:Field Name="Test5" Identifier="-1">
<opc:DisplayName>Test_5</opc:DisplayName>
</opc:Field>
</opc:Fields>
</opc:DataType>
<opc:VariableType SymbolicName="RestrictedVariableType" BaseType="ua:BaseDataVariableType" DataType="ua:String" >
<opc:Children>
<opc:Variable SymbolicName="Yellow" TypeDefinition="ua:PropertyType" DataType="ua:Int32">
<opc:DefaultRolePermissions Name="SeekerOnly" />
<opc:DefaultAccessRestrictions>SessionWithSigningRequired</opc:DefaultAccessRestrictions>
</opc:Variable>
<opc:Variable SymbolicName="X" TypeDefinition="ua:PropertyType" DataType="ua:Int32" />
<opc:Variable SymbolicName="Y" TypeDefinition="ua:PropertyType" DataType="ua:Int32" />
<opc:Variable SymbolicName="Z" TypeDefinition="ua:PropertyType" DataType="ua:Int32" />
</opc:Children>
<opc:DefaultRolePermissions Name="SecurityAdminOnly" />
<opc:DefaultAccessRestrictions>EncryptionRequired</opc:DefaultAccessRestrictions>
</opc:VariableType>
<opc:Method SymbolicName="RestrictedMethodType">
<opc:InputArguments>
<opc:Argument Name="In1" DataType="ua:Int32" />
</opc:InputArguments>
<opc:OutputArguments>
<opc:Argument Name="Out1" DataType="ua:Int32" />
</opc:OutputArguments>
<opc:DefaultRolePermissions Name="SecurityAdminOnly" />
<opc:DefaultAccessRestrictions>SigningRequired</opc:DefaultAccessRestrictions>
</opc:Method>
<opc:ObjectType SymbolicName="RestrictedObjectType" BaseType="ua:BaseObjectType">
<opc:Children>
<opc:Variable SymbolicName="Red" TypeDefinition="RestrictedVariableType" ModellingRule="Mandatory"/>
<opc:Variable SymbolicName="Pink_Placeholder" TypeDefinition="RestrictedVariableType" ModellingRule="OptionalPlaceholder">
<opc:BrowseName>&lt;Pink&gt;</opc:BrowseName>
</opc:Variable>
<opc:Method SymbolicName="Blue" ModellingRule="Mandatory">
<opc:DefaultRolePermissions Name="SecurityAdminOnly" />
<opc:DefaultAccessRestrictions>SessionWithSigningAndApplyToBrowseRequired</opc:DefaultAccessRestrictions>
</opc:Method>
</opc:Children>
<opc:Extensions>
<opc:Extension>
<some:Thing xmlns:some="http://tempuri.com/something">This way</some:Thing>
</opc:Extension>
<opc:Extension>
<some:World xmlns:some="http://tempuri.com/something">comes</some:World>
</opc:Extension>
</opc:Extensions>
<opc:DefaultRolePermissions Name="SecurityAdminOnly" />
<opc:DefaultAccessRestrictions>EncryptionRequired</opc:DefaultAccessRestrictions>
</opc:ObjectType>
<opc:Object SymbolicName="TestObject" TypeDefinition="RestrictedObjectType">
<opc:DefaultRolePermissions Name="AuthenticatedUserOnly" />
</opc:Object>
<opc:Object SymbolicName="MathInstance" TypeDefinition="ua:BaseObjectType">
<opc:Children>
<opc:Method SymbolicName="Compute" ModellingRule="Mandatory">
<opc:InputArguments>
<opc:Argument Name="x" DataType="ua:Int32" />
</opc:InputArguments>
<opc:OutputArguments>
<opc:Argument Name="result" DataType="ua:Int32" />
</opc:OutputArguments>
</opc:Method>
<opc:Method SymbolicName="Add" ModellingRule="Mandatory">
<opc:InputArguments>
<opc:Argument Name="a" DataType="ua:Int32" />
<opc:Argument Name="b" DataType="ua:Int32" />
</opc:InputArguments>
<opc:OutputArguments>
<opc:Argument Name="sum" DataType="ua:Int32" />
</opc:OutputArguments>
</opc:Method>
</opc:Children>
</opc:Object>
<opc:Object SymbolicName="Test_Error" TypeDefinition="ua:BaseObjectType" />
<opc:Object SymbolicName="Test_ErrorComponent" TypeDefinition="ua:BaseObjectType">
<opc:References>
<opc:Reference IsInverse="true">
<opc:ReferenceType>ua:HasComponent</opc:ReferenceType>
<opc:TargetId>Test_Error</opc:TargetId>
</opc:Reference>
</opc:References>
</opc:Object>
<opc:DataType SymbolicName="HeaterStatus" BaseType="ua:Enumeration">
<opc:Fields>
<opc:Field Name="Off" Identifier="0">
<opc:DisplayName>It is really off!</opc:DisplayName>
</opc:Field>
<opc:Field Name="Heating" Identifier="1">
<opc:DisplayName>暖房</opc:DisplayName>
</opc:Field>
<opc:Field Name="Cooling" Identifier="2">
<opc:DisplayName>200_冷房</opc:DisplayName>
</opc:Field>
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="Vector" BaseType="ua:Structure">
<opc:Extensions>
<opc:Extension>
<some:Thing xmlns:some="http://tempuri.com/something">This way</some:Thing>
</opc:Extension>
</opc:Extensions>
<opc:Fields>
<opc:Field Name="X" DataType="ua:Double" />
<opc:Field Name="Y" DataType="ua:Double" />
<opc:Field Name="Z" DataType="ua:Double" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="WorkOrderStatusType" BaseType="ua:Structure">
<opc:Fields>
<opc:Field Name="Actor" DataType="ua:String" />
<opc:Field Name="Timestamp" DataType="ua:DateTime" />
<opc:Field Name="Comment" DataType="ua:LocalizedText" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="WorkOrderType" BaseType="ua:Structure">
<opc:Fields>
<opc:Field Name="ID" DataType="ua:Guid" />
<opc:Field Name="AssetID" DataType="ua:String" />
<opc:Field Name="StartTime" DataType="ua:DateTime" />
<opc:Field Name="StatusComments" DataType="WorkOrderStatusType" ValueRank="Array" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="ExtendedWorkOrderType" BaseType="WorkOrderType">
<opc:Fields>
<opc:Field Name="ContactX" DataType="ua:UInt32" />
<opc:Field Name="ContactY" DataType="ua:String" ValueRank="Array" IsOptional="true" />
<opc:Field Name="ContactZ" DataType="ua:ByteString" IsOptional="true" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="FinalWorkOrderType" BaseType="ExtendedWorkOrderType">
<opc:Fields>
<opc:Field Name="Address" DataType="ua:String" />
<opc:Field Name="Phone" DataType="ua:String" IsOptional="true" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="SampleUnion" BaseType="ua:Union" IsUnion="true">
<opc:Fields>
<opc:Field Name="FieldX" DataType="ua:UInt32" />
<opc:Field Name="FieldY" DataType="ua:String" ValueRank="Array" />
<opc:Field Name="FieldZ" DataType="ua:ByteString" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="SampleStructureWithOptionalFields" BaseType="ua:Structure">
<opc:Fields>
<opc:Field Name="FieldX" DataType="ua:UInt32" />
<opc:Field Name="FieldY" DataType="ua:String" ValueRank="Array" IsOptional="true" />
<opc:Field Name="FieldZ" DataType="ua:ByteString" IsOptional="true" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="SampleUnionAllowSubtypes" BaseType="ua:Union" IsUnion="true">
<opc:Fields>
<opc:Field Name="FieldX" DataType="WorkOrderType" AllowSubTypes="true" />
<opc:Field Name="FieldY" DataType="WorkOrderStatusType" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="SampleStructureAllowSubtypes" BaseType="ua:Structure">
<opc:Fields>
<opc:Field Name="FieldX" DataType="Vector" AllowSubTypes="true" />
<opc:Field Name="FieldY" DataType="Vector" ValueRank="Array" AllowSubTypes="true" />
<opc:Field Name="FieldZ" DataType="Vector" ValueRank="ScalarOrArray" AllowSubTypes="true" />
<opc:Field Name="FieldW" DataType="WorkOrderStatusType" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="SampleStructureWithMatrixFields" BaseType="ua:Structure">
<opc:Fields>
<opc:Field Name="BoolMatrix" DataType="ua:Boolean" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="Int32Matrix" DataType="ua:Int32" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="StringMatrix" DataType="ua:String" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="NodeIdMatrix" DataType="ua:NodeId" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="VariantMatrix" DataType="ua:BaseDataType" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="ExtensionObjectMatrix" DataType="ua:Structure" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="VectorMatrix" DataType="Vector" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="HeaterStatusMatrix" DataType="HeaterStatus" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" />
<opc:Field Name="AbstractVectorMatrix" DataType="Vector" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" AllowSubTypes="true" />
</opc:Fields>
</opc:DataType>
<opc:ObjectType SymbolicName="WithTwoDimensionalVariableType" BaseType="ua:BaseObjectType">
<opc:Children>
<opc:Variable SymbolicName="X" DataType="ua:Int32" ValueRank="OneOrMoreDimensions" ArrayDimensions="0,0" ModellingRule="Optional"/>
</opc:Children>
</opc:ObjectType>
<opc:DataType SymbolicName="Person" BaseType="ua:Structure">
<opc:Fields>
<opc:Field Name="LastName" DataType="ua:String" IsOptional="true" />
</opc:Fields>
</opc:DataType>
<opc:DataType SymbolicName="Student" BaseType="Person">
<opc:Fields>
<opc:Field Name="FirstName" DataType="ua:String" IsOptional="true" />
<opc:Field Name="University" DataType="ua:String" IsOptional="true" />
</opc:Fields>
</opc:DataType>
<!-- Notifier object: SupportsEvents=true is the design-XML form of
EventNotifier=SubscribeToEvents. Wrappers for this node must
expose typed Publish<TEvent> overloads. -->
<opc:Object SymbolicName="NotifierObject" TypeDefinition="ua:BaseObjectType" SupportsEvents="true" />
<!-- Event-emitting object: declares an outgoing GeneratesEvent
reference. Wrappers must expose typed Publish<TEvent> even though
SupportsEvents is not set explicitly (the model says this object
can fire BaseEventType events). -->
<opc:Object SymbolicName="EventEmittingObject" TypeDefinition="ua:BaseObjectType">
<opc:References>
<opc:Reference>
<opc:ReferenceType>ua:GeneratesEvent</opc:ReferenceType>
<opc:TargetId>ua:BaseEventType</opc:TargetId>
</opc:Reference>
</opc:References>
</opc:Object>
<opc:Extensions>
<opc:Extension>
<blue:Something xmlns:blue="http://something.net/schemas">
<blue:Begin color="Red">Hello</blue:Begin>
<blue:End brightness="Dim">World</blue:End>
</blue:Something>
</opc:Extension>
</opc:Extensions>
</opc:ModelDesign>
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