com.amazonaws.services.dynamodb.datamodeling

クラス DynamoDBMapper

java.lang.Object

com.amazonaws.services.dynamodb.datamodeling.DynamoDBMapper

非推奨です。

@Deprecated
public class DynamoDBMapper
extends java.lang.Object

Object mapper for domain-object interaction with DynamoDB.

To use, annotate domain classes with the annotations found in the com.amazonaws.services.dynamodb.datamodeling package. A minimal example:

 @DynamoDBTable(tableName = "TestTable")
 public class TestClass {

     private Long key;
     private double rangeKey;
     private Long version;

     private Set<Integer> integerSetAttribute;

     @DynamoDBHashKey
     public Long getKey() {
         return key;
     }

     public void setKey(Long key) {
         this.key = key;
     }

     @DynamoDBRangeKey
     public double getRangeKey() {
         return rangeKey;
     }

     public void setRangeKey(double rangeKey) {
         this.rangeKey = rangeKey;
     }

     @DynamoDBAttribute(attributeName = "integerSetAttribute")
     public Set<Integer> getIntegerAttribute() {
         return integerSetAttribute;
     }

     public void setIntegerAttribute(Set<Integer> integerAttribute) {
         this.integerSetAttribute = integerAttribute;
     }

     @DynamoDBVersionAttribute
     public Long getVersion() {
         return version;
     }

     public void setVersion(Long version) {
         this.version = version;
     }
 }
 

Save instances of annotated classes to DynamoDB, retrieve them, and delete them using the DynamoDBMapper class, as in the following example.

 DynamoDBMapper mapper = new DynamoDBMapper(dynamoDBClient);
 Long hashKey = 105L;
 double rangeKey = 1.0d;
 TestClass obj = mapper.load(TestClass.class, hashKey, rangeKey);
 obj.getIntegerAttribute().add(42);
 mapper.save(obj);
 mapper.delete(obj);
 

When using the save, load, and delete methods, DynamoDBMapper will throw DynamoDBMappingExceptions to indicate that domain classes are incorrectly annotated or otherwise incompatible with this class. Service exceptions will always be propagated as AmazonClientException, and DynamoDB-specific subclasses such as ConditionalCheckFailedException will be used when possible.

This class is thread-safe and can be shared between threads. It's also very lightweight, so it doesn't need to be.

関連項目:

DynamoDBTable, DynamoDBHashKey, DynamoDBRangeKey, DynamoDBAutoGeneratedKey, DynamoDBAttribute, DynamoDBVersionAttribute, DynamoDBIgnore, DynamoDBMarshalling, DynamoDBMapperConfig

コンストラクタの概要

コンストラクタ

コンストラクタと説明
DynamoDBMapper(AmazonDynamoDB dynamoDB) 非推奨です。 Constructs a new mapper with the service object given, using the default configuration.
DynamoDBMapper(AmazonDynamoDB dynamoDB, DynamoDBMapperConfig config) 非推奨です。 Constructs a new mapper with the service object and configuration given.

メソッドの概要

メソッド

修飾子とタイプ	メソッドと説明
void	batchDelete(java.util.List<? extends java.lang.Object> objectsToDelete) 非推奨です。 Deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.
void	batchDelete(java.lang.Object... objectsToDelete) 非推奨です。 Deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.
java.util.Map<java.lang.String,java.util.List<java.lang.Object>>	batchLoad(java.util.Map<java.lang.Class<?>,java.util.List<KeyPair>> itemsToGet) 非推奨です。 Retrieves the attributes for multiple items from multiple tables using their primary keys.
java.util.Map<java.lang.String,java.util.List<java.lang.Object>>	batchLoad(java.util.Map<java.lang.Class<?>,java.util.List<KeyPair>> itemsToGet, DynamoDBMapperConfig config) 非推奨です。 Retrieves the attributes for multiple items from multiple tables using their primary keys.
void	batchSave(java.util.List<? extends java.lang.Object> objectsToSave) 非推奨です。 Saves the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.
void	batchSave(java.lang.Object... objectsToSave) 非推奨です。 Saves the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.
void	batchWrite(java.util.List<? extends java.lang.Object> objectsToWrite, java.util.List<? extends java.lang.Object> objectsToDelete) 非推奨です。 Saves and deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.
void	batchWrite(java.util.List<? extends java.lang.Object> objectsToWrite, java.util.List<? extends java.lang.Object> objectsToDelete, DynamoDBMapperConfig config) 非推奨です。 Saves and deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.
int	count(java.lang.Class<?> clazz, DynamoDBQueryExpression queryExpression) 非推奨です。 Evaluates the specified query expression and returns the count of matching items, without returning any of the actual item data, using the default configuration.
int	count(java.lang.Class<?> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) 非推奨です。 Evaluates the specified query expression and returns the count of matching items, without returning any of the actual item data.
int	count(java.lang.Class<?> clazz, DynamoDBScanExpression scanExpression) 非推奨です。 Evaluates the specified scan expression and returns the count of matching items, without returning any of the actual item data, using the default configuration.
int	count(java.lang.Class<?> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) 非推奨です。 Evaluates the specified scan expression and returns the count of matching items, without returning any of the actual item data.
void	delete(java.lang.Object object) 非推奨です。 Deletes the given object from its DynamoDB table.
void	delete(java.lang.Object object, DynamoDBMapperConfig config) 非推奨です。 Deletes the given object from its DynamoDB table.
<T> T	load(java.lang.Class<T> clazz, java.lang.Object hashKey) 非推奨です。 Loads an object with the hash key given, using the default configuration.
<T> T	load(java.lang.Class<T> clazz, java.lang.Object hashKey, DynamoDBMapperConfig config) 非推奨です。 Loads an object with the hash key given and a configuration override.
<T> T	load(java.lang.Class<T> clazz, java.lang.Object hashKey, java.lang.Object rangeKey) 非推奨です。 Loads an object with a hash and range key, using the default configuration.
<T> T	load(java.lang.Class<T> clazz, java.lang.Object hashKey, java.lang.Object rangeKey, DynamoDBMapperConfig config) 非推奨です。 Returns an object with the given hash key, or null if no such object exists.
<T> T	marshallIntoObject(java.lang.Class<T> clazz, java.util.Map<java.lang.String,AttributeValue> itemAttributes) 非推奨です。 Creates and fills in the attributes on an instance of the class given with the attributes given.
<T> java.util.List<T>	marshallIntoObjects(java.lang.Class<T> clazz, java.util.List<java.util.Map<java.lang.String,AttributeValue>> itemAttributes) 非推奨です。 Marshalls the list of item attributes into objects of type clazz
<T> PaginatedQueryList<T>	query(java.lang.Class<T> clazz, DynamoDBQueryExpression queryExpression) 非推奨です。 Queries an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects, using the default configuration.
<T> PaginatedQueryList<T>	query(java.lang.Class<T> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) 非推奨です。 Queries an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects.
<T> QueryResultPage<T>	queryPage(java.lang.Class<T> clazz, DynamoDBQueryExpression queryExpression) 非推奨です。 Queries an Amazon DynamoDB table and returns a single page of matching results.
<T> QueryResultPage<T>	queryPage(java.lang.Class<T> clazz, DynamoDBQueryExpression queryExpression, DynamoDBMapperConfig config) 非推奨です。 Queries an Amazon DynamoDB table and returns a single page of matching results.
<T> void	save(T object) 非推奨です。 Saves the object given into DynamoDB, using the default configuration.
<T> void	save(T object, DynamoDBMapperConfig config) 非推奨です。 Saves an item in DynamoDB.
<T> PaginatedScanList<T>	scan(java.lang.Class<T> clazz, DynamoDBScanExpression scanExpression) 非推奨です。 Scans through an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects, using the default configuration.
<T> PaginatedScanList<T>	scan(java.lang.Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) 非推奨です。 Scans through an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects.
<T> ScanResultPage<T>	scanPage(java.lang.Class<T> clazz, DynamoDBScanExpression scanExpression) 非推奨です。 Scans through an Amazon DynamoDB table and returns a single page of matching results.
<T> ScanResultPage<T>	scanPage(java.lang.Class<T> clazz, DynamoDBScanExpression scanExpression, DynamoDBMapperConfig config) 非推奨です。 Scans through an Amazon DynamoDB table and returns a single page of matching results.
protected java.util.Map<java.lang.String,AttributeValue>	transformAttributes(java.lang.Class<?> clazz, java.util.Map<java.lang.String,AttributeValue> attributeValues) 非推奨です。 By default, just calls transformAttributes(String, String, Map).
protected java.util.Map<java.lang.String,AttributeValue>	transformAttributes(java.lang.String hashKey, java.lang.String rangeKey, java.util.Map<java.lang.String,AttributeValue> attributeValues) 非推奨です。 Transform attribute values prior to storing in DynamoDB.
protected java.util.Map<java.lang.String,AttributeValue>	untransformAttributes(java.lang.Class<?> clazz, java.util.Map<java.lang.String,AttributeValue> attributeValues) 非推奨です。 By default, just calls untransformAttributes(String, String, Map).
protected java.util.Map<java.lang.String,AttributeValue>	untransformAttributes(java.lang.String hashKey, java.lang.String rangeKey, java.util.Map<java.lang.String,AttributeValue> attributeValues) 非推奨です。 Transforms the attribute values after loading from DynamoDb.

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

DynamoDBMapper

public DynamoDBMapper(AmazonDynamoDB dynamoDB)

非推奨です。

Constructs a new mapper with the service object given, using the default configuration.

パラメータ:

dynamoDB - The service object to use for all service calls.

関連項目:

DynamoDBMapperConfig.DEFAULT

DynamoDBMapper

public DynamoDBMapper(AmazonDynamoDB dynamoDB,
              DynamoDBMapperConfig config)

非推奨です。

Constructs a new mapper with the service object and configuration given.

パラメータ:

dynamoDB - The service object to use for all service calls.

config - The default configuration to use for all service calls. It can be overridden on a per-operation basis.

メソッドの詳細

load

public <T> T load(java.lang.Class<T> clazz,
         java.lang.Object hashKey,
         DynamoDBMapperConfig config)

非推奨です。

Loads an object with the hash key given and a configuration override. This configuration overrides the default provided at object construction.

関連項目:

load(Class, Object, Object, DynamoDBMapperConfig)

load

public <T> T load(java.lang.Class<T> clazz,
         java.lang.Object hashKey)

非推奨です。

Loads an object with the hash key given, using the default configuration.

関連項目:

load(Class, Object, Object, DynamoDBMapperConfig)

load

public <T> T load(java.lang.Class<T> clazz,
         java.lang.Object hashKey,
         java.lang.Object rangeKey)

非推奨です。

Loads an object with a hash and range key, using the default configuration.

関連項目:

load(Class, Object, Object, DynamoDBMapperConfig)

load

public <T> T load(java.lang.Class<T> clazz,
         java.lang.Object hashKey,
         java.lang.Object rangeKey,
         DynamoDBMapperConfig config)

非推奨です。

Returns an object with the given hash key, or null if no such object exists.

パラメータ:

clazz - The class to load, corresponding to a DynamoDB table.

hashKey - The key of the object.

rangeKey - The range key of the object, or null for tables without a range key.

config - Configuration for the service call to retrieve the object from DynamoDB. This configuration overrides the default given at construction.

marshallIntoObject

public <T> T marshallIntoObject(java.lang.Class<T> clazz,
                       java.util.Map<java.lang.String,AttributeValue> itemAttributes)

非推奨です。

Creates and fills in the attributes on an instance of the class given with the attributes given.

This is accomplished by looking for getter methods annotated with an appropriate annotation, then looking for matching attribute names in the item attribute map.

パラメータ:

clazz - The class to instantiate and hydrate

itemAttributes - The set of item attributes, keyed by attribute name.

marshallIntoObjects

public <T> java.util.List<T> marshallIntoObjects(java.lang.Class<T> clazz,
                                        java.util.List<java.util.Map<java.lang.String,AttributeValue>> itemAttributes)

非推奨です。

Marshalls the list of item attributes into objects of type clazz

関連項目:

marshallIntoObject(Class, Map)

save

public <T> void save(T object)

非推奨です。

Saves the object given into DynamoDB, using the default configuration.

関連項目:

save(Object, DynamoDBMapperConfig)

save

public <T> void save(T object,
            DynamoDBMapperConfig config)

非推奨です。

Saves an item in DynamoDB. The service method used is determined by the DynamoDBMapperConfig.getSaveBehavior() value, to use either AWSDynamoDB#putItem(PutItemRequest) or AWSDynamoDB#updateItem(UpdateItemRequest). For updates, a null value for an object property will remove it from that item in DynamoDB. For puts, a null value will not be passed to the service. The effect is therefore the same, except when the item in DynamoDB contains attributes that aren't modeled by the domain object given.

パラメータ:

object - The object to save into DynamoDB

config - The configuration to use, which overrides the default provided at object construction.

delete

public void delete(java.lang.Object object)

非推奨です。

Deletes the given object from its DynamoDB table.

delete

public void delete(java.lang.Object object,
          DynamoDBMapperConfig config)

非推奨です。

Deletes the given object from its DynamoDB table.

パラメータ:

config - Config override object. If DynamoDBMapperConfig.SaveBehavior.CLOBBER is supplied, version fields will not be considered when deleting the object.

batchDelete

public void batchDelete(java.util.List<? extends java.lang.Object> objectsToDelete)

非推奨です。

Deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

関連項目:

batchWrite(List, List, DynamoDBMapperConfig)

batchDelete

public void batchDelete(java.lang.Object... objectsToDelete)

非推奨です。

Deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

関連項目:

batchWrite(List, List, DynamoDBMapperConfig)

batchSave

public void batchSave(java.util.List<? extends java.lang.Object> objectsToSave)

非推奨です。

Saves the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

関連項目:

batchWrite(List, List, DynamoDBMapperConfig)

batchSave

public void batchSave(java.lang.Object... objectsToSave)

非推奨です。

Saves the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

関連項目:

batchWrite(List, List, DynamoDBMapperConfig)

batchWrite

public void batchWrite(java.util.List<? extends java.lang.Object> objectsToWrite,
              java.util.List<? extends java.lang.Object> objectsToDelete)

非推奨です。

Saves and deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

関連項目:

batchWrite(List, List, DynamoDBMapperConfig)

batchWrite

public void batchWrite(java.util.List<? extends java.lang.Object> objectsToWrite,
              java.util.List<? extends java.lang.Object> objectsToDelete,
              DynamoDBMapperConfig config)

非推奨です。

Saves and deletes the objects given using one or more calls to the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

パラメータ:

objectsToWrite - A list of objects to save to DynamoDB. No version checks are performed, as required by the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

objectsToDelete - A list of objects to delete from DynamoDB. No version checks are performed, as required by the AmazonDynamoDB.batchWriteItem(BatchWriteItemRequest) API.

config - Only DynamoDBMapperConfig.getTableNameOverride() is considered; if specified, all objects in the two parameter lists will be considered to belong to the given table override.

batchLoad

public java.util.Map<java.lang.String,java.util.List<java.lang.Object>> batchLoad(java.util.Map<java.lang.Class<?>,java.util.List<KeyPair>> itemsToGet)

非推奨です。

Retrieves the attributes for multiple items from multiple tables using their primary keys. AmazonDynamoDB.batchGetItem(BatchGetItemRequest) API.

関連項目:

DynamoDBMapper#batchLoad(Map, List, DynamoDBMapperConfig)

batchLoad

public java.util.Map<java.lang.String,java.util.List<java.lang.Object>> batchLoad(java.util.Map<java.lang.Class<?>,java.util.List<KeyPair>> itemsToGet,
                                                                         DynamoDBMapperConfig config)

非推奨です。

Retrieves the attributes for multiple items from multiple tables using their primary keys. AmazonDynamoDB.batchGetItem(BatchGetItemRequest) API.

パラメータ:

itemsToGet - Container for the necessary parameters to execute the BatchGetItem service method on Amazon DynamoDB. AmazonDynamoDB#batchWriteItem(BatchGetItemRequest) API.

config - Only DynamoDBMapperConfig.getTableNameOverride() is considered; if specified, all objects in the two parameter lists will be considered to belong to the given table override.

scan

public <T> PaginatedScanList<T> scan(java.lang.Class<T> clazz,
                            DynamoDBScanExpression scanExpression)

非推奨です。

Scans through an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects, using the default configuration.

関連項目:

scan(Class, DynamoDBScanExpression, DynamoDBMapperConfig)

scan

public <T> PaginatedScanList<T> scan(java.lang.Class<T> clazz,
                            DynamoDBScanExpression scanExpression,
                            DynamoDBMapperConfig config)

非推奨です。

Scans through an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects. The table to scan is determined by looking at the annotations on the specified class, which declares where to store the object data in Amazon DynamoDB, and the scan expression parameter allows the caller to filter results and control how the scan is executed.

Callers should be aware that the returned list is unmodifiable, and any attempts to modify the list will result in an UnsupportedOperationException.

The unmodifiable list returned is lazily loaded when possible, so calls to DynamoDB will be made only as needed.

型パラメータ:

T - The type of the objects being returned.

パラメータ:

clazz - The class annotated with DynamoDB annotations describing how to store the object data in Amazon DynamoDB.

scanExpression - Details on how to run the scan, including any filters to apply to limit results.

config - The configuration to use for this scan, which overrides the default provided at object construction.

戻り値:

An unmodifiable list of the objects constructed from the results of the scan operation.

関連項目:

PaginatedScanList

scanPage

public <T> ScanResultPage<T> scanPage(java.lang.Class<T> clazz,
                             DynamoDBScanExpression scanExpression,
                             DynamoDBMapperConfig config)

非推奨です。

Scans through an Amazon DynamoDB table and returns a single page of matching results. The table to scan is determined by looking at the annotations on the specified class, which declares where to store the object data in AWS DynamoDB, and the scan expression parameter allows the caller to filter results and control how the scan is executed.

型パラメータ:

T - The type of the objects being returned.

パラメータ:

clazz - The class annotated with DynamoDB annotations describing how to store the object data in Amazon DynamoDB.

scanExpression - Details on how to run the scan, including any filters to apply to limit results.

config - The configuration to use for this scan, which overrides the default provided at object construction.

scanPage

public <T> ScanResultPage<T> scanPage(java.lang.Class<T> clazz,
                             DynamoDBScanExpression scanExpression)

非推奨です。

Scans through an Amazon DynamoDB table and returns a single page of matching results.

関連項目:

scanPage(Class, DynamoDBScanExpression, DynamoDBMapperConfig)

query

public <T> PaginatedQueryList<T> query(java.lang.Class<T> clazz,
                              DynamoDBQueryExpression queryExpression)

非推奨です。

Queries an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects, using the default configuration.

関連項目:

query(Class, DynamoDBQueryExpression, DynamoDBMapperConfig)

query

public <T> PaginatedQueryList<T> query(java.lang.Class<T> clazz,
                              DynamoDBQueryExpression queryExpression,
                              DynamoDBMapperConfig config)

非推奨です。

Queries an Amazon DynamoDB table and returns the matching results as an unmodifiable list of instantiated objects. The table to query is determined by looking at the annotations on the specified class, which declares where to store the object data in Amazon DynamoDB, and the query expression parameter allows the caller to filter results and control how the query is executed.

Callers should be aware that the returned list is unmodifiable, and any attempts to modify the list will result in an UnsupportedOperationException.

The unmodifiable list returned is lazily loaded when possible, so calls to DynamoDB will be made only as needed.

型パラメータ:

T - The type of the objects being returned.

パラメータ:

clazz - The class annotated with DynamoDB annotations describing how to store the object data in Amazon DynamoDB.

queryExpression - Details on how to run the query, including any conditions on the key values

config - The configuration to use for this query, which overrides the default provided at object construction.

戻り値:

An unmodifiable list of the objects constructed from the results of the query operation.

関連項目:

PaginatedQueryList

queryPage

public <T> QueryResultPage<T> queryPage(java.lang.Class<T> clazz,
                               DynamoDBQueryExpression queryExpression)

非推奨です。

Queries an Amazon DynamoDB table and returns a single page of matching results. The table to query is determined by looking at the annotations on the specified class, which declares where to store the object data in Amazon DynamoDB, and the query expression parameter allows the caller to filter results and control how the query is executed.

関連項目:

queryPage(Class, DynamoDBQueryExpression, DynamoDBMapperConfig)

queryPage

public <T> QueryResultPage<T> queryPage(java.lang.Class<T> clazz,
                               DynamoDBQueryExpression queryExpression,
                               DynamoDBMapperConfig config)

非推奨です。

Queries an Amazon DynamoDB table and returns a single page of matching results. The table to query is determined by looking at the annotations on the specified class, which declares where to store the object data in Amazon DynamoDB, and the query expression parameter allows the caller to filter results and control how the query is executed.

型パラメータ:

T - The type of the objects being returned.

パラメータ:

clazz - The class annotated with DynamoDB annotations describing how to store the object data in AWS DynamoDB.

queryExpression - Details on how to run the query, including any conditions on the key values

config - The configuration to use for this query, which overrides the default provided at object construction.

count

public int count(java.lang.Class<?> clazz,
        DynamoDBScanExpression scanExpression)

非推奨です。

Evaluates the specified scan expression and returns the count of matching items, without returning any of the actual item data, using the default configuration.

関連項目:

count(Class, DynamoDBScanExpression, DynamoDBMapperConfig)

count

public int count(java.lang.Class<?> clazz,
        DynamoDBScanExpression scanExpression,
        DynamoDBMapperConfig config)

非推奨です。

Evaluates the specified scan expression and returns the count of matching items, without returning any of the actual item data.

This operation will scan your entire table, and can therefore be very expensive. Use with caution.

パラメータ:

clazz - The class mapped to a DynamoDB table.

scanExpression - The parameters for running the scan.

config - The configuration to use for this scan, which overrides the default provided at object construction.

戻り値:

The count of matching items, without returning any of the actual item data.

count

public int count(java.lang.Class<?> clazz,
        DynamoDBQueryExpression queryExpression)

非推奨です。

Evaluates the specified query expression and returns the count of matching items, without returning any of the actual item data, using the default configuration.

関連項目:

count(Class, DynamoDBQueryExpression, DynamoDBMapperConfig)

count

public int count(java.lang.Class<?> clazz,
        DynamoDBQueryExpression queryExpression,
        DynamoDBMapperConfig config)

非推奨です。

Evaluates the specified query expression and returns the count of matching items, without returning any of the actual item data.

パラメータ:

clazz - The class mapped to a DynamoDB table.

scanExpression - The parameters for running the scan.

config - The mapper configuration to use for the query, which overrides the default provided at object construction.

戻り値:

The count of matching items, without returning any of the actual item data.

untransformAttributes

protected java.util.Map<java.lang.String,AttributeValue> untransformAttributes(java.lang.Class<?> clazz,
                                                                   java.util.Map<java.lang.String,AttributeValue> attributeValues)

非推奨です。

By default, just calls untransformAttributes(String, String, Map).

パラメータ:

clazz -

attributeValues -

戻り値:

the decrypted attribute values

untransformAttributes

protected java.util.Map<java.lang.String,AttributeValue> untransformAttributes(java.lang.String hashKey,
                                                                   java.lang.String rangeKey,
                                                                   java.util.Map<java.lang.String,AttributeValue> attributeValues)

非推奨です。

Transforms the attribute values after loading from DynamoDb. Only ever called by untransformAttributes(Class, Map). By default, returns the attributes unchanged. Currently, the values associated with the hash key and range key must be left unchanged.

パラメータ:

hashKey - the attribute name of the hash key

rangeKey - the attribute name of the range key (or null if there is none)

attributeValues -

戻り値:

the decrypted attributes

transformAttributes

protected java.util.Map<java.lang.String,AttributeValue> transformAttributes(java.lang.Class<?> clazz,
                                                                 java.util.Map<java.lang.String,AttributeValue> attributeValues)

非推奨です。

By default, just calls transformAttributes(String, String, Map).

パラメータ:

clazz -

attributeValues -

戻り値:

the decrypted attribute values

transformAttributes

protected java.util.Map<java.lang.String,AttributeValue> transformAttributes(java.lang.String hashKey,
                                                                 java.lang.String rangeKey,
                                                                 java.util.Map<java.lang.String,AttributeValue> attributeValues)

非推奨です。

Transform attribute values prior to storing in DynamoDB. Only ever called by transformAttributes(Class, Map). By default, returns the attributes unchanged.

パラメータ:

hashKey - the attribute name of the hash key

rangeKey - the attribute name of the range key (or null if there is none)

attributeValues -

戻り値:

the encrypted attributes