# DataValue


An object that specifies a value for a property.

## Contents


 ** booleanValue **   <a name="tm-Type-DataValue-booleanValue"></a>
A Boolean value.  
Type: Boolean  
Required: No

 ** doubleValue **   <a name="tm-Type-DataValue-doubleValue"></a>
A double value.  
Type: Double  
Required: No

 ** expression **   <a name="tm-Type-DataValue-expression"></a>
An expression that produces the value.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 316.  
Pattern: `(^\$\{Parameters\.[a-zA-z]+([a-zA-z_0-9]*)}$)`   
Required: No

 ** integerValue **   <a name="tm-Type-DataValue-integerValue"></a>
An integer value.  
Type: Integer  
Required: No

 ** listValue **   <a name="tm-Type-DataValue-listValue"></a>
A list of multiple values.  
Type: Array of [DataValue](#API_DataValue) objects  
Array Members: Minimum number of 0 items. Maximum number of 50 items.  
Required: No

 ** longValue **   <a name="tm-Type-DataValue-longValue"></a>
A long value.  
Type: Long  
Required: No

 ** mapValue **   <a name="tm-Type-DataValue-mapValue"></a>
An object that maps strings to multiple `DataValue` objects.  
Type: String to [DataValue](#API_DataValue) object map  
Map Entries: Minimum number of 0 items. Maximum number of 50 items.  
Key Length Constraints: Minimum length of 1. Maximum length of 256.  
Key Pattern: `.*`   
Required: No

 ** relationshipValue **   <a name="tm-Type-DataValue-relationshipValue"></a>
A value that relates a component to another component.  
Type: [RelationshipValue](API_RelationshipValue.md) object  
Required: No

 ** stringValue **   <a name="tm-Type-DataValue-stringValue"></a>
A string value.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `.*`   
Required: No

## See Also


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/iottwinmaker-2021-11-29/DataValue) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iottwinmaker-2021-11-29/DataValue) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iottwinmaker-2021-11-29/DataValue)