MetaStore.ExtraDataSupplier (aws-dynamodb-encryption-java :: SDK1 2.0.0 API)

Enclosing class:

MetaStore
```
public static interface MetaStore.ExtraDataSupplier
```
Provides extra data that should be persisted along with the standard material data.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>`	`getAttributes(String materialName, long version)`	Gets the extra data attributes for the specified material name.
`Set<String>`	`getSignedOnlyFieldNames()`	Gets the extra data field names that should be signed only but not encrypted.

- Method Detail
  - getAttributes
```
Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue> getAttributes(String materialName,
                                                                                       long version)
```
    Gets the extra data attributes for the specified material name.
    
    Parameters:
    
    materialName - material name.
    
    version - version number.
    
    Returns:
    
    plain text of the extra data.
  - getSignedOnlyFieldNames
```
Set<String> getSignedOnlyFieldNames()
```
    Gets the extra data field names that should be signed only but not encrypted.
    
    Returns:
    
    signed only fields.