Module jdk.jfr

Package jdk.jfr

Annotation Interface Timespan

@Retention(RUNTIME)
@Target({FIELD,TYPE,METHOD})
public @interface Timespan

Event field annotation, specifies that the value is a duration.

If the annotated value equals Long.MAX_VALUE, it represents forever.

Since:

9

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MICROSECONDS	Unit for microseconds.
static final String	MILLISECONDS	Unit for milliseconds.
static final String	NANOSECONDS	Unit for nanoseconds.
static final String	SECONDS	Unit for seconds.
static final String	TICKS	Unit for ticks.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
String	value	Returns the unit of measure for the time span.

Field Details

TICKS

static final String TICKS

Unit for ticks.

See Also:

• Constant Field Values

SECONDS

static final String SECONDS

Unit for seconds.

See Also:

• Constant Field Values

MILLISECONDS

static final String MILLISECONDS

Unit for milliseconds.

See Also:

• Constant Field Values

NANOSECONDS

static final String NANOSECONDS

Unit for nanoseconds.

See Also:

• Constant Field Values

MICROSECONDS

static final String MICROSECONDS

Unit for microseconds.

See Also:

• Constant Field Values

Element Details

value

String value

Returns the unit of measure for the time span.

By default, the unit is nanoseconds.

Returns:

the time span unit, default NANOSECONDS, not null

Default:

"NANOSECONDS"