Package software.amazon.awscdk.services.appsync

Class PrimaryKey

java.lang.Object

software.amazon.jsii.JsiiObject

software.amazon.awscdk.services.appsync.PrimaryKey

All Implemented Interfaces:

software.amazon.jsii.JsiiSerializable

Direct Known Subclasses:

PartitionKey

@Generated(value="jsii-pacmak/1.97.0 (build 729de35)",
           date="2024-04-18T17:54:12.826Z")
@Stability(Stable)
public class PrimaryKey
extends software.amazon.jsii.JsiiObject

Specifies the assignment to the primary key.

It either contains the full primary key or only the partition key.

Example:

 GraphqlApi api = GraphqlApi.Builder.create(this, "Api")
         .name("demo")
         .definition(Definition.fromFile(join(__dirname, "schema.graphql")))
         .authorizationConfig(AuthorizationConfig.builder()
                 .defaultAuthorization(AuthorizationMode.builder()
                         .authorizationType(AuthorizationType.IAM)
                         .build())
                 .build())
         .xrayEnabled(true)
         .build();
 Table demoTable = Table.Builder.create(this, "DemoTable")
         .partitionKey(Attribute.builder()
                 .name("id")
                 .type(AttributeType.STRING)
                 .build())
         .build();
 DynamoDbDataSource demoDS = api.addDynamoDbDataSource("demoDataSource", demoTable);
 // Resolver for the Query "getDemos" that scans the DynamoDb table and returns the entire list.
 // Resolver Mapping Template Reference:
 // https://docs.aws.amazon.com/appsync/latest/devguide/resolver-mapping-template-reference-dynamodb.html
 demoDS.createResolver("QueryGetDemosResolver", BaseResolverProps.builder()
         .typeName("Query")
         .fieldName("getDemos")
         .requestMappingTemplate(MappingTemplate.dynamoDbScanTable())
         .responseMappingTemplate(MappingTemplate.dynamoDbResultList())
         .build());
 // Resolver for the Mutation "addDemo" that puts the item into the DynamoDb table.
 demoDS.createResolver("MutationAddDemoResolver", BaseResolverProps.builder()
         .typeName("Mutation")
         .fieldName("addDemo")
         .requestMappingTemplate(MappingTemplate.dynamoDbPutItem(PrimaryKey.partition("id").auto(), Values.projecting("input")))
         .responseMappingTemplate(MappingTemplate.dynamoDbResultItem())
         .build());
 //To enable DynamoDB read consistency with the `MappingTemplate`:
 demoDS.createResolver("QueryGetDemosConsistentResolver", BaseResolverProps.builder()
         .typeName("Query")
         .fieldName("getDemosConsistent")
         .requestMappingTemplate(MappingTemplate.dynamoDbScanTable(true))
         .responseMappingTemplate(MappingTemplate.dynamoDbResultList())
         .build());
 

Nested Class Summary

Nested classes/interfaces inherited from class software.amazon.jsii.JsiiObject

software.amazon.jsii.JsiiObject.InitializationMode

Constructor Summary

Constructors

Modifier	Constructor	Description
	PrimaryKey(Assign pkey)
	PrimaryKey(Assign pkey, Assign skey)
protected	PrimaryKey(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)
protected	PrimaryKey(software.amazon.jsii.JsiiObjectRef objRef)

Method Summary

Modifier and Type	Method	Description
protected Assign	getPkey()
static PartitionKeyStep	partition(String key)	Allows assigning a value to the partition key.
String	renderTemplate()	Renders the key assignment to a VTL string.

Methods inherited from class software.amazon.jsii.JsiiObject

jsiiAsyncCall, jsiiAsyncCall, jsiiCall, jsiiCall, jsiiGet, jsiiGet, jsiiSet, jsiiStaticCall, jsiiStaticCall, jsiiStaticGet, jsiiStaticGet, jsiiStaticSet, jsiiStaticSet

Methods inherited from class java.lang.Object

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

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Constructor Details

PrimaryKey

protected PrimaryKey(software.amazon.jsii.JsiiObjectRef objRef)

PrimaryKey

protected PrimaryKey(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)

PrimaryKey

@Stability(Stable)
public PrimaryKey(@NotNull
 Assign pkey,
 @Nullable
 Assign skey)

Parameters:

pkey - This parameter is required.

skey -

PrimaryKey

@Stability(Stable)
public PrimaryKey(@NotNull
 Assign pkey)

Parameters:

pkey - This parameter is required.

Method Details

partition

@Stability(Stable)
@NotNull
public static PartitionKeyStep partition(@NotNull
 String key)

Allows assigning a value to the partition key.

Parameters:

key - This parameter is required.

renderTemplate

@Stability(Stable)
@NotNull
public String renderTemplate()

Renders the key assignment to a VTL string.

getPkey

@Stability(Stable)
@NotNull
protected Assign getPkey()