com.amazonaws.services.dynamodbv2.datamodeling

Annotation Type DynamoDBAttribute

@Retention(value=RUNTIME)
 @Target(value={FIELD,METHOD})
public @interface DynamoDBAttribute

Interface for marking a class property as an attribute in a DynamoDB table. Applied to the getter method or the class field for a modeled property. If the annotation is applied directly to the class field, the corresponding getter and setter must be declared in the same class.

This annotation is optional when the name of the DynamoDB attribute matches the name of the property declared in the class. When they differ, use this annotation with the attributeName() parameter to specify which DynamoDB attribute this property corresponds to. Furthermore, the DynamoDBMapper class assumes Java naming conventions, and will lower-case the first character of a getter method's property name to determine the name of the property. E.g., a method getValue() will map to the DynamoDB attribute "value". Similarly, a method isValid() maps to the DynamoDB attribute "valid".

Even getter method not marked with this annotation are assumed to be modeled properties, unless marked with DynamoDBIgnore.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	attributeName Optional parameter when the name of the attribute as stored in DynamoDB should differ from the name used by the getter / setter.
String	mappedBy Optional parameter when using DynamoDBFlattened; identifies the field/property name on the target class to map as the attribute.

Element Detail

attributeName

public abstract String attributeName

Optional parameter when the name of the attribute as stored in DynamoDB should differ from the name used by the getter / setter.

Default:

""

mappedBy

public abstract String mappedBy

Optional parameter when using DynamoDBFlattened; identifies the field/property name on the target class to map as the attribute.

See Also:

DynamoDBFlattened

Default:

""