@Generated(value="com.amazonaws:aws-java-sdk-code-generator") public class DynamoDBv2Action extends Object implements Serializable, Cloneable, StructuredPojo
Defines an action to write to the Amazon DynamoDB table that you created. The default action payload contains all the information about the detector model instance and the event that triggered the action. You can customize the payload. A separate column of the DynamoDB table receives one attribute-value pair in the payload that you specify.
You must use expressions for all parameters in DynamoDBv2Action
. The expressions accept literals,
operators, functions, references, and substitution templates.
Examples
For literal values, the expressions must contain single quotes. For example, the value for the tableName
parameter can be 'GreenhouseTemperatureTable'
.
For references, you must specify either variables or input values. For example, the value for the
tableName
parameter can be $variable.ddbtableName
.
For a substitution template, you must use ${}
, and the template must be in single quotes. A substitution
template can also contain a combination of literals, operators, functions, references, and substitution templates.
In the following example, the value for the contentExpression
parameter in Payload
uses a
substitution template.
'{\"sensorID\": \"${$input.GreenhouseInput.sensor_id}\", \"temperature\": \"${$input.GreenhouseInput.temperature * 9 / 5 + 32}\"}'
For a string concatenation, you must use +
. A string concatenation can also contain a combination of
literals, operators, functions, references, and substitution templates.
In the following example, the value for the tableName
parameter uses a string concatenation.
'GreenhouseTemperatureTable ' + $input.GreenhouseInput.date
For more information, see Expressions in the AWS IoT Events Developer Guide.
The value for the type
parameter in Payload
must be JSON
.
Constructor and Description |
---|
DynamoDBv2Action() |
Modifier and Type | Method and Description |
---|---|
DynamoDBv2Action |
clone() |
boolean |
equals(Object obj) |
Payload |
getPayload() |
String |
getTableName()
The name of the DynamoDB table.
|
int |
hashCode() |
void |
marshall(ProtocolMarshaller protocolMarshaller)
Marshalls this structured data using the given
ProtocolMarshaller . |
void |
setPayload(Payload payload) |
void |
setTableName(String tableName)
The name of the DynamoDB table.
|
String |
toString()
Returns a string representation of this object.
|
DynamoDBv2Action |
withPayload(Payload payload) |
DynamoDBv2Action |
withTableName(String tableName)
The name of the DynamoDB table.
|
public void setTableName(String tableName)
The name of the DynamoDB table.
tableName
- The name of the DynamoDB table.public String getTableName()
The name of the DynamoDB table.
public DynamoDBv2Action withTableName(String tableName)
The name of the DynamoDB table.
tableName
- The name of the DynamoDB table.public void setPayload(Payload payload)
payload
- public Payload getPayload()
public DynamoDBv2Action withPayload(Payload payload)
payload
- public String toString()
toString
in class Object
Object.toString()
public DynamoDBv2Action clone()
public void marshall(ProtocolMarshaller protocolMarshaller)
StructuredPojo
ProtocolMarshaller
.marshall
in interface StructuredPojo
protocolMarshaller
- Implementation of ProtocolMarshaller
used to marshall this object's data.