# ROS2PrimitiveMessageDefinition
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Represents a ROS 2 compliant primitive type message of the complex data structure.

## Contents
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 ** primitiveType **   <a name="iotfleetwise-Type-ROS2PrimitiveMessageDefinition-primitiveType"></a>
The primitive type (integer, floating point, boolean, etc.) for the ROS 2 primitive message definition.  
Type: String  
Valid Values: `BOOL | BYTE | CHAR | FLOAT32 | FLOAT64 | INT8 | UINT8 | INT16 | UINT16 | INT32 | UINT32 | INT64 | UINT64 | STRING | WSTRING`   
Required: Yes

 ** offset **   <a name="iotfleetwise-Type-ROS2PrimitiveMessageDefinition-offset"></a>
The offset used to calculate the signal value. Combined with scaling, the calculation is `value = raw_value * scaling + offset`.  
Type: Double  
Required: No

 ** scaling **   <a name="iotfleetwise-Type-ROS2PrimitiveMessageDefinition-scaling"></a>
A multiplier used to decode the message.  
Type: Double  
Required: No

 ** upperBound **   <a name="iotfleetwise-Type-ROS2PrimitiveMessageDefinition-upperBound"></a>
An optional attribute specifying the upper bound for `STRING` and `WSTRING`.  
Type: Long  
Valid Range: Minimum value of 0. Maximum value of 2048.  
Required: No

## See Also
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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/iotfleetwise-2021-06-17/ROS2PrimitiveMessageDefinition) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iotfleetwise-2021-06-17/ROS2PrimitiveMessageDefinition) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iotfleetwise-2021-06-17/ROS2PrimitiveMessageDefinition)