Package io.micronaut.scheduling.executor
Enum ThreadSelection
- java.lang.Object
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- java.lang.Enum<ThreadSelection>
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- io.micronaut.scheduling.executor.ThreadSelection
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<ThreadSelection>
public enum ThreadSelection extends java.lang.Enum<ThreadSelection>
Enum the controls the ability to select threads in a Micronaut application.- Since:
- 1.3
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Enum Constant Summary
Enum Constants Enum Constant Description AUTO
Automatically select the thread to run operations on based on the return type and/orBlocking
orNonBlocking
annotations.IO
I/O selection will run all operations regardless of return type and annotations on the I/O thread pool and will never schedule an operation on the server event loop thread.MANUAL
Manual selection leaves it up to the user code to spawn threads to run any blocking I/O operations.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static ThreadSelection
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static ThreadSelection[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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AUTO
public static final ThreadSelection AUTO
Automatically select the thread to run operations on based on the return type and/orBlocking
orNonBlocking
annotations.This is the default strategy in 1.x and will run operations on the I/O thread pool if the return type of the method is not a reactive top and the method is not annotated with
NonBlocking
If the return type is a reactive type and the method is not annotated with
Blocking
then the server event loop thread will used to run the operation.
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MANUAL
public static final ThreadSelection MANUAL
Manual selection leaves it up to the user code to spawn threads to run any blocking I/O operations. This could be via an appropriate call tosubscribeOn(..)
or by using theAsync
annotation or whatever mechanism the user chooses to spawn the additional thread.
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IO
public static final ThreadSelection IO
I/O selection will run all operations regardless of return type and annotations on the I/O thread pool and will never schedule an operation on the server event loop thread.
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Method Detail
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values
public static ThreadSelection[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (ThreadSelection c : ThreadSelection.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static ThreadSelection valueOf(java.lang.String name)
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:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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