org.openjdk.jmc.flightrecorder.rules.jdk.memory

Class GcStallRule

java.lang.Object

org.openjdk.jmc.flightrecorder.rules.jdk.memory.GcStallRule

All Implemented Interfaces:

IRule

public class GcStallRule
extends java.lang.Object
implements IRule

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	GC_STALL_RESULT_ID

Constructor Summary

Constructors

Constructor and Description
GcStallRule()

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.RunnableFuture<Result>	evaluate(IItemCollection items, IPreferenceValueProvider valueProvider) Gets a future representing the result of the evaluation of this rule.
java.util.Collection<TypedPreference<?>>	getConfigurationAttributes() Gets information about which attributes may be configured during rule evaluation.
private Result	getGcStallResult(boolean nonRequestedSerialOldGc, IItemCollection items)
java.lang.String	getId()
java.lang.String	getName()
java.lang.String	getTopic()

Methods inherited from class java.lang.Object

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

Field Detail

GC_STALL_RESULT_ID

private static final java.lang.String GC_STALL_RESULT_ID

See Also:

Constant Field Values

Constructor Detail

GcStallRule

public GcStallRule()

Method Detail

evaluate

public java.util.concurrent.RunnableFuture<Result> evaluate(IItemCollection items,
                                                            IPreferenceValueProvider valueProvider)

Description copied from interface: IRule

Gets a future representing the result of the evaluation of this rule. Running the RunnableFuture is the responsibility of the caller of this method, not the implementation.

Specified by:

evaluate in interface IRule

Parameters:

items - items to evaluate

valueProvider - Provider of configuration values used for evaluation. The attributes that will be asked for from the provider should be provided by IRule.getConfigurationAttributes().

Returns:

a RunnableFuture that when run will return the evaluation result

getGcStallResult

private Result getGcStallResult(boolean nonRequestedSerialOldGc,
                                IItemCollection items)

getConfigurationAttributes

public java.util.Collection<TypedPreference<?>> getConfigurationAttributes()

Description copied from interface: IRule

Gets information about which attributes may be configured during rule evaluation.

Specified by:

getConfigurationAttributes in interface IRule

Returns:

a list of configuration attributes

getId

public java.lang.String getId()

Specified by:

getId in interface IRule

Returns:

a unique id for this rule implementation

getName

public java.lang.String getName()

Specified by:

getName in interface IRule

Returns:

a human readable name for this rule

getTopic

public java.lang.String getTopic()

Specified by:

getTopic in interface IRule

Returns:

the topic for this rule, may be null