Enum DynamoDBMapperConfig.PaginationLoadingStrategy
java.lang.Object
java.lang.Enum<DynamoDBMapperConfig.PaginationLoadingStrategy>
com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapperConfig.PaginationLoadingStrategy
- All Implemented Interfaces:
Serializable
,Comparable<DynamoDBMapperConfig.PaginationLoadingStrategy>
,java.lang.constant.Constable
- Enclosing class:
- DynamoDBMapperConfig
public static enum DynamoDBMapperConfig.PaginationLoadingStrategy
extends Enum<DynamoDBMapperConfig.PaginationLoadingStrategy>
Enumeration of pagination loading strategy.
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Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
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Enum Constant Summary
Enum ConstantsEnum ConstantDescriptionPaginated list will eagerly load all the paginated results from DynamoDB as soon as the list is initialized.Only supports using iterator to read from the paginated list.Paginated list is lazily loaded when possible, and all loaded results are kept in the memory. -
Method Summary
Modifier and TypeMethodDescriptionReturns the enum constant of this type with the specified name.values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Details
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LAZY_LOADING
Paginated list is lazily loaded when possible, and all loaded results are kept in the memory.By default, the mapper uses LAZY_LOADING.
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ITERATION_ONLY
Only supports using iterator to read from the paginated list. All other list operations will return UnsupportedOperationException immediately. During the iteration, the list will clear all the previous results before loading the next page, so that the list will keep at most one page of the loaded results in memory. This also means the list could only be iterated once.Use this configuration to reduce the memory overhead when handling large DynamoDB items.
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EAGER_LOADING
Paginated list will eagerly load all the paginated results from DynamoDB as soon as the list is initialized.
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Method Details
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values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
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