Module jdk.management.jfr
Package jdk.management.jfr

Class EventTypeInfo

java.lang.Object
jdk.management.jfr.EventTypeInfo
public final class EventTypeInfo
extends Object
Management representation of an EventType.
Since:
9
See Also:
EventType

  • Method Summary

    Modifier and Type Method Description
    static EventTypeInfo from​(CompositeData cd)
    Returns an EventType represented by the specified CompositeData
    List<String> getCategoryNames()
    Returns the list of human-readable names that makes up the category for this EventTypeInfo (for example, "Java Virtual Machine" or "Garbage Collector").
    String getDescription()
    Returns a short sentence or two describing the event type associated with this EventTypeInfo, for example "Garbage collection performed by the JVM"".
    long getId()
    Returns the unique ID for the event type associated with this EventTypeInfo, not guaranteed to be the same for different Java Virtual Machines (JVMs) instances.
    String getLabel()
    Returns the label, a human-readable name, associated with the event type for this EventTypeInfo (for example, "Garbage Collection").
    String getName()
    Returns the name for the event type associated with this EventTypeInfo (for example, "jdk.GarbageCollection").
    List<SettingDescriptorInfo> getSettingDescriptors()
    Returns settings for the event type associated with this EventTypeInfo.
    String toString()
    Returns a description of this EventTypeInfo.

    Methods declared in class java.lang.Object

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

  • Method Details

    • getLabel

      public String getLabel()
      Returns the label, a human-readable name, associated with the event type for this EventTypeInfo (for example, "Garbage Collection").
      Returns:
      the label, or null if a label is not set
      See Also:
      EventType.getLabel()

    • getCategoryNames

      public List<String> getCategoryNames()
      Returns the list of human-readable names that makes up the category for this EventTypeInfo (for example, "Java Virtual Machine" or "Garbage Collector").
      Returns:
      an immutable list of category names, or a list with the name "Uncategorized" if no category has been set
      See Also:
      EventType.getCategoryNames(), Category

    • getId

      public long getId()
      Returns the unique ID for the event type associated with this EventTypeInfo, not guaranteed to be the same for different Java Virtual Machines (JVMs) instances.
      Returns:
      the ID
      See Also:
      EventType.getId()

    • getName

      public String getName()
      Returns the name for the event type associated with this EventTypeInfo (for example, "jdk.GarbageCollection").
      Returns:
      the name, not null
      See Also:
      EventType.getName()

    • getDescription

      public String getDescription()
      Returns a short sentence or two describing the event type associated with this EventTypeInfo, for example "Garbage collection performed by the JVM"".
      Returns:
      the description, or null if no description exists
      See Also:
      EventType.getDescription()

    • getSettingDescriptors

      public List<SettingDescriptorInfo> getSettingDescriptors()
      Returns settings for the event type associated with this EventTypeInfo.
      Returns:
      the settings, not null
      See Also:
      EventType.getSettingDescriptors()

    • toString

      public String toString()
      Returns a description of this EventTypeInfo.
      Overrides:
      toString in class Object
      Returns:
      description, not null

    • from

      public static EventTypeInfo from​(CompositeData cd)
      Returns an EventType represented by the specified CompositeData

      The supplied CompositeData must have the following item names and item types to be valid.

      The name and type the specified CompositeData must contain
      Name Type
      id Long
      name String
      label String
      description String
      category ArrayType(1, SimpleType.STRING)
      settings javax.management.openmbean.CompositeData[] whose element type is the mapped type for SettingDescriptorInfo as specified in the SettingDescriptorInfo.from(javax.management.openmbean.CompositeData) method.

      Parameters:
      cd - CompositeData representing the EventTypeInfo to return
      Returns:
      an EventTypeInfo, or null if cd is null
      Throws:
      IllegalArgumentException - if cd does not represent a valid EventTypeInfo