java.lang.Object
- java.lang.Enum<DefaultParallelExecutionConfigurationStrategy>
- - org.junit.platform.engine.support.hierarchical.DefaultParallelExecutionConfigurationStrategy

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<DefaultParallelExecutionConfigurationStrategy>, ParallelExecutionConfigurationStrategy
```
@API(status=STABLE,
     since="1.10")
public enum DefaultParallelExecutionConfigurationStrategy
extends java.lang.Enum<DefaultParallelExecutionConfigurationStrategy>
implements ParallelExecutionConfigurationStrategy
```
Default implementations of configuration strategies for parallel test execution.

Since:

1.3

Enum Constant Summary

Enum Constants
Enum Constant	Description
`CUSTOM`	Allows the specification of a custom `ParallelExecutionConfigurationStrategy` implementation via the mandatory "custom.class" configuration parameter to determine the desired configuration.
`DYNAMIC`	Computes the desired parallelism based on the number of available processors/cores multiplied by the "dynamic.factor" configuration parameter.
`FIXED`	Uses the mandatory "fixed.parallelism" configuration parameter as the desired parallelism.

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`CONFIG_CUSTOM_CLASS_PROPERTY_NAME`	Property name used to specify the fully qualified class name of the `ParallelExecutionConfigurationStrategy` to be used by the `CUSTOM` configuration strategy.
`static java.lang.String`	`CONFIG_DYNAMIC_FACTOR_PROPERTY_NAME`	Property name of the factor used to determine the desired parallelism for the `DYNAMIC` configuration strategy.
`static java.lang.String`	`CONFIG_DYNAMIC_MAX_POOL_SIZE_FACTOR_PROPERTY_NAME`	Property name of the factor used to determine the maximum pool size of the underlying fork-join pool for the `DYNAMIC` configuration strategy.
`static java.lang.String`	`CONFIG_DYNAMIC_SATURATE_PROPERTY_NAME`	Property name used to disable saturation of the underlying fork-join pool for the `DYNAMIC` configuration strategy.
`static java.lang.String`	`CONFIG_FIXED_MAX_POOL_SIZE_PROPERTY_NAME`	Property name used to configure the maximum pool size of the underlying fork-join pool for the `FIXED` configuration strategy.
`static java.lang.String`	`CONFIG_FIXED_PARALLELISM_PROPERTY_NAME`	Property name used to determine the desired parallelism for the `FIXED` configuration strategy.
`static java.lang.String`	`CONFIG_FIXED_SATURATE_PROPERTY_NAME`	Property name used to disable saturation of the underlying fork-join pool for the `FIXED` configuration strategy.
`static java.lang.String`	`CONFIG_STRATEGY_PROPERTY_NAME`	Property name used to determine the desired configuration strategy.
`private static int`	`KEEP_ALIVE_SECONDS`

Constructor Summary

Constructors
Modifier Constructor Description

private DefaultParallelExecutionConfigurationStrategy()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) static ParallelExecutionConfigurationStrategy`	`getStrategy(ConfigurationParameters configurationParameters)`
`static DefaultParallelExecutionConfigurationStrategy`	`valueOf(java.lang.String name)`	Returns the enum constant of this type with the specified name.
`static DefaultParallelExecutionConfigurationStrategy[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.junit.platform.engine.support.hierarchical.ParallelExecutionConfigurationStrategy
createConfiguration

- Enum Constant Detail
  - FIXED
```
public static final DefaultParallelExecutionConfigurationStrategy FIXED
```
    Uses the mandatory "fixed.parallelism" configuration parameter as the desired parallelism.
  - DYNAMIC
```
public static final DefaultParallelExecutionConfigurationStrategy DYNAMIC
```
    Computes the desired parallelism based on the number of available processors/cores multiplied by the "dynamic.factor" configuration parameter.
  - CUSTOM
```
public static final DefaultParallelExecutionConfigurationStrategy CUSTOM
```
    Allows the specification of a custom ParallelExecutionConfigurationStrategy implementation via the mandatory "custom.class" configuration parameter to determine the desired configuration.
- Field Detail
  - KEEP_ALIVE_SECONDS
```
private static final int KEEP_ALIVE_SECONDS
```
    See Also:
    
    Constant Field Values
  - CONFIG_STRATEGY_PROPERTY_NAME
```
public static final java.lang.String CONFIG_STRATEGY_PROPERTY_NAME
```
    Property name used to determine the desired configuration strategy.
    Value must be one of dynamic, fixed, or custom.
    
    See Also:
    
    Constant Field Values
  - CONFIG_FIXED_PARALLELISM_PROPERTY_NAME
```
public static final java.lang.String CONFIG_FIXED_PARALLELISM_PROPERTY_NAME
```
    Property name used to determine the desired parallelism for the FIXED configuration strategy.
    No default value; must be an integer.
    
    See Also:
    
    FIXED, Constant Field Values
  - CONFIG_FIXED_MAX_POOL_SIZE_PROPERTY_NAME
```
@API(status=MAINTAINED,
     since="1.13.3")
public static final java.lang.String CONFIG_FIXED_MAX_POOL_SIZE_PROPERTY_NAME
```
    Property name used to configure the maximum pool size of the underlying fork-join pool for the FIXED configuration strategy.
    Value must be an integer and greater than or equal to "fixed.parallelism"; defaults to 256 + fixed.parallelism.
    
    Since:
    
    1.10
    
    See Also:
    
    FIXED, Constant Field Values
  - CONFIG_FIXED_SATURATE_PROPERTY_NAME
```
@API(status=MAINTAINED,
     since="1.13.3")
public static final java.lang.String CONFIG_FIXED_SATURATE_PROPERTY_NAME
```
    Property name used to disable saturation of the underlying fork-join pool for the FIXED configuration strategy.
    When set to false the underlying fork-join pool will reject additional tasks if all available workers are busy and the maximum pool-size would be exceeded.
    Value must either true or false; defaults to true.
    
    Since:
    
    1.10
    
    See Also:
    
    FIXED, CONFIG_FIXED_MAX_POOL_SIZE_PROPERTY_NAME, Constant Field Values
  - CONFIG_DYNAMIC_FACTOR_PROPERTY_NAME
```
public static final java.lang.String CONFIG_DYNAMIC_FACTOR_PROPERTY_NAME
```
    Property name of the factor used to determine the desired parallelism for the DYNAMIC configuration strategy.
    Value must be a non-negative decimal number; defaults to 1.
    
    See Also:
    
    DYNAMIC, Constant Field Values
  - CONFIG_DYNAMIC_MAX_POOL_SIZE_FACTOR_PROPERTY_NAME
```
@API(status=MAINTAINED,
     since="1.13.3")
public static final java.lang.String CONFIG_DYNAMIC_MAX_POOL_SIZE_FACTOR_PROPERTY_NAME
```
    Property name of the factor used to determine the maximum pool size of the underlying fork-join pool for the DYNAMIC configuration strategy.
    Value must be a decimal number equal and greater than or equal to 1. When set the maximum pool size is calculated as dynamic.max-pool-size-factor * dynamic.factor * Runtime.getRuntime().availableProcessors() When not set the maximum pool size is calculated as 256 + dynamic.factor * Runtime.getRuntime().availableProcessors() instead.
    
    Since:
    
    1.10
    
    See Also:
    
    DYNAMIC, Constant Field Values
  - CONFIG_DYNAMIC_SATURATE_PROPERTY_NAME
```
@API(status=MAINTAINED,
     since="1.13.3")
public static final java.lang.String CONFIG_DYNAMIC_SATURATE_PROPERTY_NAME
```
    Property name used to disable saturation of the underlying fork-join pool for the DYNAMIC configuration strategy.
    When set to false the underlying fork-join pool will reject additional tasks if all available workers are busy and the maximum pool-size would be exceeded.
    Value must either true or false; defaults to true.
    
    Since:
    
    1.10
    
    See Also:
    
    DYNAMIC, CONFIG_DYNAMIC_FACTOR_PROPERTY_NAME, Constant Field Values
  - CONFIG_CUSTOM_CLASS_PROPERTY_NAME
```
public static final java.lang.String CONFIG_CUSTOM_CLASS_PROPERTY_NAME
```
    Property name used to specify the fully qualified class name of the ParallelExecutionConfigurationStrategy to be used by the CUSTOM configuration strategy.
    
    See Also:
    
    CUSTOM, Constant Field Values
- Constructor Detail
  - DefaultParallelExecutionConfigurationStrategy
```
private DefaultParallelExecutionConfigurationStrategy()
```
- Method Detail
  - values
```
public static DefaultParallelExecutionConfigurationStrategy[] 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 (DefaultParallelExecutionConfigurationStrategy c : DefaultParallelExecutionConfigurationStrategy.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static DefaultParallelExecutionConfigurationStrategy 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 name
    
    java.lang.NullPointerException - if the argument is null
  - getStrategy
```
static ParallelExecutionConfigurationStrategy getStrategy(ConfigurationParameters configurationParameters)
```

Enum DefaultParallelExecutionConfigurationStrategy

Enum Constant Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Methods inherited from interface org.junit.platform.engine.support.hierarchical.ParallelExecutionConfigurationStrategy

Enum Constant Detail

FIXED

DYNAMIC

CUSTOM

Field Detail

KEEP_ALIVE_SECONDS

CONFIG_STRATEGY_PROPERTY_NAME

CONFIG_FIXED_PARALLELISM_PROPERTY_NAME

CONFIG_FIXED_MAX_POOL_SIZE_PROPERTY_NAME

CONFIG_FIXED_SATURATE_PROPERTY_NAME

CONFIG_DYNAMIC_FACTOR_PROPERTY_NAME

CONFIG_DYNAMIC_MAX_POOL_SIZE_FACTOR_PROPERTY_NAME

CONFIG_DYNAMIC_SATURATE_PROPERTY_NAME

CONFIG_CUSTOM_CLASS_PROPERTY_NAME

Constructor Detail

DefaultParallelExecutionConfigurationStrategy

Method Detail

values

valueOf

getStrategy