# AssetModelCompositeModel
<a name="API_AssetModelCompositeModel"></a>

Contains information about a composite model in an asset model. This object contains the asset property definitions that you define in the composite model.

## Contents
<a name="API_AssetModelCompositeModel_Contents"></a>

 ** name **   <a name="iotsitewise-Type-AssetModelCompositeModel-name"></a>
The name of the composite model.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[^\u0000-\u001F\u007F]+`   
Required: Yes

 ** type **   <a name="iotsitewise-Type-AssetModelCompositeModel-type"></a>
The type of the composite model. For alarm composite models, this type is `AWS/ALARM`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[^\u0000-\u001F\u007F]+`   
Required: Yes

 ** description **   <a name="iotsitewise-Type-AssetModelCompositeModel-description"></a>
The description of the composite model.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Pattern: `[^\u0000-\u001F\u007F]+`   
Required: No

 ** externalId **   <a name="iotsitewise-Type-AssetModelCompositeModel-externalId"></a>
The external ID of the asset model composite model. For more information, see [Using external IDs](https://docs.aws.amazon.com/iot-sitewise/latest/userguide/object-ids.html#external-ids) in the * AWS IoT SiteWise User Guide*.  
Type: String  
Length Constraints: Minimum length of 2. Maximum length of 128.  
Pattern: `[a-zA-Z0-9_][a-zA-Z_\-0-9.:]*[a-zA-Z0-9_]+`   
Required: No

 ** id **   <a name="iotsitewise-Type-AssetModelCompositeModel-id"></a>
 The ID of the asset model composite model.   
Type: String  
Length Constraints: Minimum length of 13. Maximum length of 139.  
Pattern: `^(?!00000000-0000-0000-0000-000000000000)[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$|^externalId:[a-zA-Z0-9_][a-zA-Z_\-0-9.:]*[a-zA-Z0-9_]+`   
Required: No

 ** properties **   <a name="iotsitewise-Type-AssetModelCompositeModel-properties"></a>
The asset property definitions for this composite model.  
Type: Array of [AssetModelProperty](API_AssetModelProperty.md) objects  
Required: No

## See Also
<a name="API_AssetModelCompositeModel_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iotsitewise-2019-12-02/AssetModelCompositeModel) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iotsitewise-2019-12-02/AssetModelCompositeModel) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iotsitewise-2019-12-02/AssetModelCompositeModel)