software.amazon.lambda.powertools.parameters

Class DynamoDbProvider

java.lang.Object

software.amazon.lambda.powertools.parameters.BaseProvider

software.amazon.lambda.powertools.parameters.DynamoDbProvider

All Implemented Interfaces:

ParamProvider

public class DynamoDbProvider
extends BaseProvider

Implements a ParamProvider on top of DynamoDB. The schema of the table is described in the Powertools documentation.

See Also:

Parameters provider documentation

Field Summary

Fields inherited from class software.amazon.lambda.powertools.parameters.BaseProvider

cacheManager

Constructor Summary

Constructors

Constructor and Description
DynamoDbProvider(CacheManager cacheManager, java.lang.String tableName)

Method Summary

Modifier and Type	Method and Description
static software.amazon.lambda.powertools.parameters.DynamoDbProvider.Builder	builder() Create a builder that can be used to configure and create a DynamoDbProvider.
protected java.util.Map<java.lang.String,java.lang.String>	getMultipleValues(java.lang.String path) Returns multiple values from the DynamoDB parameter provider.
protected java.lang.String	getValue(java.lang.String key) Return a single value from the DynamoDB parameter provider.

Methods inherited from class software.amazon.lambda.powertools.parameters.BaseProvider

defaultMaxAge, get, get, getMultiple, now, resetToDefaults, setTransformationManager, withMaxAge, withTransformation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DynamoDbProvider

public DynamoDbProvider(CacheManager cacheManager,
                        java.lang.String tableName)

Method Detail

getValue

protected java.lang.String getValue(java.lang.String key)

Return a single value from the DynamoDB parameter provider.

Specified by:

getValue in class BaseProvider

Parameters:

key - key of the parameter

Returns:

The value, if it exists, null if it doesn't. Throws if the row exists but doesn't match the schema.

getMultipleValues

protected java.util.Map<java.lang.String,java.lang.String> getMultipleValues(java.lang.String path)

Returns multiple values from the DynamoDB parameter provider.

Specified by:

getMultipleValues in class BaseProvider

Parameters:

path - Parameter store path

Returns:

All values matching the given path, and an empty map if none do. Throws if any records exist that don't match the schema.

builder

public static software.amazon.lambda.powertools.parameters.DynamoDbProvider.Builder builder()

Create a builder that can be used to configure and create a DynamoDbProvider.

Returns:

a new instance of DynamoDbProvider.Builder