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  * Copyright 2011-2015 Amazon Technologies, Inc.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
 * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
 * OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and
 * limitations under the License.
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.

public @interface DynamoDBAttribute {

Optional parameter when the name of the attribute as stored in DynamoDB should differ from the name used by the getter / setter.
    String attributeName() default "";
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