Package io.deephaven.base.stats

Class Stats

java.lang.Object

io.deephaven.base.stats.Stats

public class Stats
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Stats.Maker	A non-static interface to the Stats component.
static interface	Stats.TimeSource

Field Summary

Fields

Modifier and Type	Field	Description
static final String	UNKNOWN_DESCRIPTION

Constructor Summary

Constructors

Constructor	Description
Stats()

Method Summary

Modifier and Type	Method	Description
static void	clearAll()	Throw away all state
static Group	getGroup(String name)	Return a specific group by name.
static Group[]	getGroups()	return an array of all groups
static Group	makeGroup(String name, String description)	get or create a named, top-level group
static <V extends Value> Item<HistogramState>	makeHistogram(String groupName, String itemName, long rangeMin, long rangeMax, int numBuckets)	get or create a new histogrammed item
static <V extends Value> Item<HistogramState>	makeHistogram(String groupName, String itemName, long now, long rangeMin, long rangeMax, int numBuckets)	get or create a new histogrammed item
static <V extends Value> Item<HistogramState>	makeHistogram(String groupName, String itemName, String description, long rangeMin, long rangeMax, int numBuckets)	get or create a new histogrammed item
static <V extends Value> Item<HistogramState>	makeHistogram(String groupName, String itemName, String description, long now, long rangeMin, long rangeMax, int numBuckets)	get or create a new histogrammed item
static <V extends Value, Arg> Item<V>	makeItem(String groupName, String itemName, BiFunction<Long,Arg,V> valueFactory, long now, Arg arg)	get or create a new item with a one-argument factory
static <V extends Value, Arg> Item<V>	makeItem(String groupName, String itemName, BiFunction<Long,Arg,V> valueFactory, Arg arg)	get or create a new item with a one-argument factory
static <V extends Value, Arg> Item<V>	makeItem(String groupName, String itemName, BiFunction<Long,Arg,V> valueFactory, String description, long now, Arg arg)	get or create a new item with a one-argument factory
static <V extends Value, Arg> Item<V>	makeItem(String groupName, String itemName, BiFunction<Long,Arg,V> valueFactory, String description, Arg arg)	get or create a new item with a one-argument factory
static <V extends Value> Item<V>	makeItem(String groupName, String itemName, LongFunction<V> valueFactory)	get or create a new item
static <V extends Value> Item<V>	makeItem(String groupName, String itemName, LongFunction<V> valueFactory, long now)	get or create a new item
static <V extends Value> Item<V>	makeItem(String groupName, String itemName, LongFunction<V> valueFactory, String description)	get or create a new item
static <V extends Value> Item<V>	makeItem(String groupName, String itemName, LongFunction<V> valueFactory, String description, long now)	get or create a new item
static void	setTimeSource(Stats.TimeSource ts)
static void	update(ItemUpdateListener listener, long now, long appNow, long logInterval)	Update the histories of all items in all groups, logging all updated intervals >= logInterval.

Methods inherited from class java.lang.Object

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

Field Details

UNKNOWN_DESCRIPTION

public static final String UNKNOWN_DESCRIPTION

See Also:

• Constant Field Values

Constructor Details

Stats

public Stats()

Method Details

setTimeSource

public static void setTimeSource(Stats.TimeSource ts)

makeGroup

public static Group makeGroup(String name,
 String description)

get or create a named, top-level group

makeItem

public static <V extends Value> Item<V> makeItem(String groupName,
 String itemName,
 LongFunction<V> valueFactory)

get or create a new item

makeItem

public static <V extends Value> Item<V> makeItem(String groupName,
 String itemName,
 LongFunction<V> valueFactory,
 long now)

get or create a new item

makeItem

public static <V extends Value> Item<V> makeItem(String groupName,
 String itemName,
 LongFunction<V> valueFactory,
 String description)

get or create a new item

makeItem

public static <V extends Value> Item<V> makeItem(String groupName,
 String itemName,
 LongFunction<V> valueFactory,
 String description,
 long now)

get or create a new item

makeItem

public static <V extends Value,
Arg> Item<V> makeItem(String groupName,
 String itemName,
 BiFunction<Long,Arg,V> valueFactory,
 Arg arg)

get or create a new item with a one-argument factory

makeItem

public static <V extends Value,
Arg> Item<V> makeItem(String groupName,
 String itemName,
 BiFunction<Long,Arg,V> valueFactory,
 long now,
 Arg arg)

get or create a new item with a one-argument factory

makeItem

public static <V extends Value,
Arg> Item<V> makeItem(String groupName,
 String itemName,
 BiFunction<Long,Arg,V> valueFactory,
 String description,
 Arg arg)

get or create a new item with a one-argument factory

makeItem

public static <V extends Value,
Arg> Item<V> makeItem(String groupName,
 String itemName,
 BiFunction<Long,Arg,V> valueFactory,
 String description,
 long now,
 Arg arg)

get or create a new item with a one-argument factory

makeHistogram

public static <V extends Value>
Item<HistogramState> makeHistogram(String groupName,
 String itemName,
 long rangeMin,
 long rangeMax,
 int numBuckets)

get or create a new histogrammed item

makeHistogram

public static <V extends Value>
Item<HistogramState> makeHistogram(String groupName,
 String itemName,
 long now,
 long rangeMin,
 long rangeMax,
 int numBuckets)

get or create a new histogrammed item

makeHistogram

public static <V extends Value>
Item<HistogramState> makeHistogram(String groupName,
 String itemName,
 String description,
 long rangeMin,
 long rangeMax,
 int numBuckets)

get or create a new histogrammed item

makeHistogram

public static <V extends Value>
Item<HistogramState> makeHistogram(String groupName,
 String itemName,
 String description,
 long now,
 long rangeMin,
 long rangeMax,
 int numBuckets)

get or create a new histogrammed item

getGroups

public static Group[] getGroups()

return an array of all groups

getGroup

public static Group getGroup(String name)

Return a specific group by name.

update

public static void update(ItemUpdateListener listener,
 long now,
 long appNow,
 long logInterval)

Update the histories of all items in all groups, logging all updated intervals >= logInterval.

clearAll

public static void clearAll()

Throw away all state