OperationType
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enum OperationType : Enum
Describes the type of database operation a DaoReturnTypeConverter function supports.
A converter function defines the operation type it supports to provide distinct logic between READ (Query) versus WRITE (Insert, Update, Delete, and Upsert) operations.
Note that INSERT, UPDATE, and DELETE statements executed within a Query annotation are also considered write operations.
If a converter function is used for a write operation, its return type's parameterized types are limited to those supported by Room's write operations.
Summary
Public functions |
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OperationType |
Returns the enum constant of this type with the specified name. |
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Array<OperationType> |
values()Returns an array containing the constants of this enum type, in the order they're declared. |
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Public properties |
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EnumEntries<OperationType> |
Returns a representation of an immutable list of all enum entries, in the order they're declared. |
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Public functions
valueOf
fun valueOf(value: String): OperationType
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.)
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kotlin.IllegalArgumentException |
if this enum type has no constant with the specified name |
values
fun values(): Array<OperationType>
Returns an array containing the constants of this enum type, in the order they're declared.
This method may be used to iterate over the constants.
Public properties
entries
val entries: EnumEntries<OperationType>
Returns a representation of an immutable list of all enum entries, in the order they're declared.
This method may be used to iterate over the enum entries.